Installation, Operation, and Maintenance Manual · 1 Parker Hannifin Corporation Filtration and Separation Division Haverhill, MA • 1-800-343-4048 Bulletin TI-H2-1200J Introduction

37 Parker Hannifin CorporationFiltration and Separation DivisionHaverhill, MA • 1-800-343-4048www.labgasgenerators.com

Bulletin TI-H2-1200J


Parker BalstonHydrogen GeneratorModels H2-800, H2-1200and 9800

Installation,Operation, andMaintenanceManual

®


This equipment must be used only by authorized personnel, in a controlled laboratory environment.Refer all detailed questions to the Parker Balston Operation Manuals.This equipment must only be used with IEC listed accessories (computer, printer, monitor, etc.)

RFI ComplianceThis equipment has been tested and found to comply with the limits of VFG 243, VDE 0871, and EN 50 082-1.Any changes or modifications not expressly approved by Parker Hannifin Corporation could adverselyaffect compliance and warranty.

Use only shielded interface cables with this equipment.If the instrument is received in a damaged condition, request an immediate inspection by the carrier and localtechnical service representative. Parker Hannifin Corporation is not responsible for damage occurringduring transit. However, Parker Hannifin Corporation will assist in ensuring a satisfactory settlement fromthe carrier.Upon receipt of all damage/inspection reports, Parker Hannifin Corporation will arrange for either instru-ment repair or replacement.For proper ventilation of this equipment, a distance of 15 cm must be maintained between all sides of thisunit and any other surface.

This product is shelf life sensitive.Do not store for more than 3 months prior to installation and operation.


Bulletin TI-H2-1200J Explanation of Warnings


Bulletin TI-H2-1200J Table of Contents

Chapter 1 IntroductionIntroduction........................................................................................1

Specifications.....................................................................................1

Shipping Damage...............................................................................2

Equipment Return...............................................................................2

Contents of Shipping Container..........................................................2

Chapter 2 DescriptionElectrolysis Process............................................................................3

Generator Operation...........................................................................4

Chapter 3 Installation and ConnectionsGenerator Location.............................................................................8

Filling the Water Tank........................................................................8

Filling the Generator Manually....................................................9

Gravity Feed From External Reservoir........................................9

External Pressurized Source........................................................9

Installing the Deionizer Bag...............................................................10

Connecting the Power.........................................................................11

Gas Connections.................................................................................12

Dual Gas Generator (or Supply) Connections....................................12

Initial Startup......................................................................................13

Controlled Venting..............................................................................15

Configuration Parameters...................................................................16


Table of Contents

Chapter 4 OperationOperational Summary.........................................................................17

Water Level........................................................................................18

Filling the Generator Manually................................................... 19

Gravity Feed From External Reservoir........................................19

External Pressurized Source........................................................19

Schedule of Maintenance Items......................................................... 19

Chapter 5 MaintenanceMaintenance........................................................................................20

Rinsing/Draining the Water Tanks......................................................21

Chapter 6 TroubleshootingTroubleshooting..................................................................................23

Typical Generator Operating Characteristics......................................23

The Service Mode...............................................................................25

ROM Information and Display Bits...................................................27

Error Conditions.................................................................................28

Troubleshooting Guide.......................................................................29

Chapter 7 Preparation for Storage or ShipmentPreparation for Storage.......................................................................33

Preparation for Shipment................................................................... 33



IntroductionThis manual provides operation and maintenance instructions for the Parker Balston Hydro-gen Generator Models H2-800, H2-1200 and 9800.

The hydrogen generator produces hydrogen (and oxygen as a byproduct) through the elec-trolysis of deionized, water. The pure hydrogen generated is suitable as a carrier gas for usewith gas chromatographs. The unit can also be used with flame ionization detectors, sulfurmonitors and other general laboratory equipment requiring a source of pure hydrogen.

SpecificationsSpecifications for the Models H2-800, H2-1200 and 9800 are shown in the table below.

Chapter 1 Introduction

In this manual, and on the front panel displays, the unit of pressure is psi (pounds per squareinch) as measured by gauge (psig) or kPa (kilopascals).

PrincipalSpecifications

CE MarkCSA Safety Standard CAN/CSA 22.2 No. 1010.1 - 92 + A1

IEC Safety Standard EIC 1010-1:1990+A1:1992+A2:1995/EN61010-1: 1993

EMC Compliance Directive 89/336/EEC

IEC 1010 Installation Category Category II

IEC 1010 Pollution Degree Degree 2

H2 Purity 99.99999%

Maximum Outlet Pressure 100 psig (690 kPa)

H2 Outlet Port 1/4" Tube compression

Maximum Flow 800 ±10 cc/min 1150 ± 50 cc/min

Min/Max Ambient Temp. 40°F - 100°F (4°C - 38°C)

Maximum Relative Humidity 80% (non-condensing)

Product Startup Time 1 hour

Min. Water Requirements 5 Megohm-cm

Electrical Requirements (NA/JA/220) 96-106 / 105-129 / 207-253 VAC, 50/60 Hz

Power Consumption (NA) 5.3 amps @ 120 VAC

Power Consumption (JA) 6.0 amps @ 100 VAC

Power Consumption (220) 2.6 amps @ 230 VAC

Fuse Type - NA 120 VAC units SB 6.3 A, 250V 5x20mm (P/N A03-0066)

Fuse Type - JA 100 VAC units SB 8.0 A, 250V 5x20mm (P/N A03-0067)

Fuse Type - 220 VAC units SB 3.15 A, 250V 5x20mm (P/N 13216)

Product Dimensions 13" x 15.5" x 17" (33cm x 39cm x 43cm)

Product Weight 45 lbs. (20.4 Kg)

Model Number H2-800 Hydrogen Generator 9800, H2-1200 Hydrogen Generator


Shipping DamageEach hydrogen generator has been carefully inspected before shipment. Visual and operationalchecks should be made upon receipt by the purchaser. Any shipping damage should be noted anda claim filed immediately with the carrier. Generators damaged in transit should not be returnedto the supplier without first obtaining specific shipping instructions.

Equipment ReturnIf a fault develops, notify the supplier from whom the hydrogen generator was purchased, or ifunable to do so, notify the manufacturer; give full details of the difficulty, and include theinstrument model and serial number. Upon receipt of this information, service or shippinginstructions will be issued. If return of the unit is authorized, forward it to the factory for repairs.If the unit is not covered by warranty, or if it is determined that the fault is caused by misuse,repairs will be made at the expense of the purchaser. An estimate of the cost of repairs will besubmitted for approval prior to making any repairs.

Contents of Shipping ContainerQuantity P/N Description1 H2-800, H2-1200, Hydrogen Generator

or A98001 TI-H2-1200 Operation ManualAccessories2 Deionizer Bags (2 bag kit) (P/N 7601132)1 P/N Assorted Parts Kit:

1648324 Drain Port Insert with 1/4" Tygon® tubing (6 ft.)(P/N8597618)1648544 Relief Port Adapter to 3/8" Tygon

® tube (elbow)

12312 Adapter from 1/4" tubing to 1/8" stainless tubing13412 Line Cord (P/N for North America only; consult factory

for other cord sets)5077757 Pressurized Water Feed Inlet Fitting1648265 Gravity Water Feed Inlet Fitting

Chapter 1 Introduction

This product is shelf life sensitive.Do not store for more than 3 months prior toinstallation and operation.


Bulletin TI-H2-1200J Chapter 2 Description

Electrolysis ProcessThe hydrogen generator produces pure hydrogen by the electrolysis of water. The key ele-ment of the generator is an electrochemical cell assembly which contains a solid polymerelectrolyte. The solid polymer electrolyte material is in the form of a sheet of plastic. Thereare no free acids or alkalines used. Deionized water is the only liquid contained in the unit. Youmust replace the water as it is used. This can be done either manually or by using the externalwater fill option.

The generated hydrogen gas accumulates in the hydrogen reservoir of the electrochemicalcell and in the purifier. In the purifier, the hydrogen is heated and then passed through apalladium membrane. Only hydrogen atoms can permeate the palladium membrane, thusproviding ultra high purity hydrogen. The heated hydrogen gas is cooled on the way to thepressure regulator. The pressure regulator governs pressure of the outgoing gas supply. Thisoutput pressure is displayed on the front panel liquid crystal display, or LCD (see Figure 2-1).You can adjust the output pressure using the control on the top of the unit.

Figure 2-1. Hydrogen Generator - Front View.

1

LCD


Generator OperationWater for the electrolysis is stored in two interconnected water tanks. Each tank contains adeionizer bag, which limits the detrimental effects of water running through the metalliccomponents in the electrochemical cell. The right water tank contains probes which monitorthe water level and the quality of the water. If the water level gets too low, the system shutsdown power to the cell and the ADD WATER message appears on the LCD. If the conductiv-ity of the water falls below 100,000 ohms/cm, the system shuts down power to the cell andthe CHANGE WATER message is displayed. If the CHANGE WATER message is displayed,the water tanks must be drained and re-filled. The DRAIN WATER TANK function of thecontrol module facilitates this process.

The internal control module actively monitors the generator’s cell pressure, cell voltage, cellcurrent, cell water quality, and cell water level. The water quality and level of water in thetanks are also monitored, along with the quality of the incoming water supply. Output pres-sure and flow rate percentage can be viewed on the LCD, along with system status and errormessages. The output pressure and flow rate percentage are displayed whenever hydrogen isbeing generated and the control module is in the normal operating mode. There are twoadditional modes used to access the functions of the control module: the CONFIGURE modeand the SERVICE mode. The CONFIGURE mode enables changes to the system parameters,and the SERVICE mode provides access to troubleshooting and servicing functions for thesystem.

The system employs a water pump which supplies a consistent flow of water from the watertanks into the electrochemical cell. On start-up, the pump runs for 30 seconds at full speed.This primes the lines and ensures that water is moving across the cell before current issupplied to the cell. The pump speed is also increased a few seconds out of every minute ofnormal operation. When the lines are being primed, the LCD displays the message, PUMPPRIMING.

Electrolysis occurs inside the electrochemical cell assembly (Figure 2-2). Positively chargedhydrogen ions are transported across the solid polymer electrolyte along with excess watermolecules. The hydrogen ions then recombine to create molecular hydrogen. Negativelycharged oxygen ions recombine to form molecular oxygen. The water saturated oxygen is fedinto a water/oxygen separator, where the water is returned to the water tank, and the oxygenescapes to the atmosphere. Small deionizer bags in the separator ensure the quality of thewater returned to the water tank.

Chapter 2 Description



The final stage of the hydrogen formation process is the purification of the molecular hydro-gen. The generator is equipped with a heated palladium purifier to scrub residual water andoxygen from the hydrogen stream. This final purification removes contaminants to less than1 ppm.

When power is applied to the generator, the palladium purifier starts to heat up. First, thepurifier temperature is displayed until it is stable above 600°C. Then the purifier warm-uptime is displayed and counts down. The warm-up time allows all of the material inside thepurifier to reach optimal temperature. To completely heat the purifier to 600°C takes about60 minutes. The purifier must be heated to a sufficient temperature to allow the hydrogen topass through the palladium membrane.

Figure 2-2. Hydrogen Generator - Fluid Schematic.



Any impurities removed from the hydrogen steam are purged from the generator to maintainthe integrity of the purification system. This bleed of impurities flows through a severelyrestricted orifice within the purifier, and then flows to a bleed outlet port on the back panel.

The electrical power supplied to the cell is regulated to provide just enough power to createthe required flow rate of hydrogen. As the cell begins to age or the water pump fails, thevoltage across the cell increases. If the cell voltage exceeds a safe limit, the system turns offthe power to the cell assembly. The system reports the failure by displaying the error mes-sage, CELL OVERVOLTAGE.

The generator’s hydrogen flow rate is displayed on the right side of the LCD. The presentflow rate is displayed as a percentage of the maximum flow rate for the system. If the systemis running at 25% the flow rate is approximately 300cc/minute for the H2-1200 or 9800 and200cc/minute for the H2-800.

As the system generates hydrogen, the output pressure is constantly monitored by a pressuretransducer with a stainless steel diaphragm. The transducer takes the output pressure andtranslates it into the output pressure reading for the LCD.

During normal operation, when power is supplied to the cell, the output pressure shouldincrease after the Start button is pressed and remain constant when pressure is reached. Ifthese conditions are not met, the excessive flow detection system initiates. An excessive flowerror can be caused by running the system above its rated capacity (maximum flow rate) orby an internal leak. For example, this might occur if you are trying to fill too large a volume,or if the gas connections to the external equipment or within the generator have leaks.

The system employs a timer to determine whether the flow is excessive. The excessive flowtimer (EFT) initializes if the system is supplying a maximum amount of current to the cell butcannot build pressure. If still unable to build pressure after the timer lapses, the system shutsdown the generating power, and the EXCESSIVE FLOW message is displayed on the LCD.

If any error occurs, a system error message is displayed. If more than one error is encoun-tered, the system will display each message in turn. Detectable errors include EXCESSIVEFLOW, ADD WATER, CHANGE WATER, PURIFIER ERROR, CELL OVERVOLTAGE,and WATCHDOG TIMER.



Bulletin TI-H2-1200J Chapter 2 Description

Refer to the Error Conditions procedure (page 28) to determine the exact nature of the errorthat has occurred. If the error condition has been corrected, pressing the Start/Select buttonremoves the error message from the LCD. After correcting any problems, restart the system.After the purifier warms up, the LCD will prompt you to press the Start/Select button to startgenerating hydrogen.

A relief valve provides for safety venting of the hydrogen if excessive pressure builds up inthe cell. A port on the rear of the generator allows you to vent the hydrogen to an exhaustsystem within your facility if desired.

Warning: Normal precautions for any hydrogen supply should be taken when usingthe generator. DO NOT use in a sealed or unvented room. DO NOT use inclose proximity to open flame or other ignition sources.

The pure, dry, pressurized hydrogen is supplied through the Hydrogen Output Port located onthe back of the generator (see Figure 2-3). This port is a convenient 1/4’’ tube fitting. Theoutput pressure is adjustable using the Pressure Regulator, located at the top of the genera-tor.

Figure 2-3. Hydrogen Generator - Rear View.


Chapter 3 Installation & Connections

Generator LocationThe hydrogen generator should be located on a flat, level, shock-free surface for proper opera-tion. The electrical components inside the generator produce heat, and the case will becomewarm to the touch. Do not place the generator over a source of heat, as this may cause thegenerator components to overheat. Maintain adequate air flow around the generator to reduceheat buildup. Do not block the vents located on the left hand side and the back of the hydrogengenerator. Do not locate the generator in a sealed or unvented room, or in close proximity toopen flame or other ignition sources. Also, do not locate the generator where it will be subjectedto freezing temperatures. The generator is designed to operate in temperatures from 40-100°F(4-38°C).

Caution: Use both hands when moving the generator, and carry the generator onlyfrom the bottom.

Warning: Remove all red tape from the generator. On the back of the unit, remove itfrom the bleed outlet. Also remove it from the two water bottle caps locatedunder the top cover. Remove the freeze indicator and any other instructionsif taped to the generator.

Filling the Water TankIf the water level becomes too low or the water quality is insufficient, the generator will auto-matically shut down. Water quality is determined by the electrical conductivity of the water, andshould have an initial resistivity of at least 5 Megohm-cm, with several megohms desirable.

Parker Hannifin Corporation has designed a water purification system called the HydroGen™Mate, that provides high purity deionized water for all methods of filling the hydrogen genera-tors. The HydroGen™ Mate purifies standard tap water to deliver high quality deionized waterwith resistivity greater than 5 Megohm-cm. Model 72-230 is used for manual filling of the unitsand is equipped with a dispensing gun. Model 72-231 is designed for connecting directly to theinlet of the hydrogen generator as an external pressurized water source.

Use only deionized water in the generator to prevent contamination of the cell assembly.Water containing metallic impurities will damage the cell and will be cause for voiding thewarranty. Cell contamination is a cumulative and irreversible process, eventually resulting in anOVERVOLTAGE condition and cell failure. Use only clean glass or plastic (HDPE only) con-tainers to supply water to the generator.

You may be using one of these four methods of supplying water to the generator:

• Use the Parker Balston HydroGen™ Mate for automatic water feed• Manually fill tanks• Gravity feed tanks from an external reservoir• Use a pressurized deionized water source

Follow the directions on page 9 that apply to the method selected.



Filling the Generator ManuallyIf you are manually adding water to the water tank in the generator, make sure that the ‘‘waterinlet plug’’ is always inserted in the Water Inlet Port on the back of the generator.

Supply deionized water to the generator using the following procedure:

1. Open the top door of the generator and unscrew the fill caps of both water tanks.2. Fill both tanks with deionized, distilled water until the water level in each tank is steady at

the FULL line. Approximately four liters of water are required to completely fill thegenerator.

3. Before replacing the caps, make sure that the deionizer bags are installed correctly asdescribed on page 10.

Caution: Do not overfill the water tanks. The water level should be kept below the porton the top inside of the tank.

Gravity Feed From External Reservoir1. With the round external water fitting connected to the Water Inlet Port on the back of the

generator (see Figure 3-1), fill the external reservoir with deionized distilled water. The‘‘external water insert’’ is supplied with a length of Tygon™ tubing for connection to thereservoir.

2. Check to make sure that the water level in each tank in the generator is initially steady atthe FULL line. Approximately four liters of water are required to completely fill thegenerator.

External Pressurized SourceWhen connected to a pressurized water source (maximum pressure is 100 psig), you must usea recirculating loop at the generator to ensure that only fresh deionized, distilled water is used.

1. With the hexagonal external water fitting connected to the Water Inlet Port on the back ofthe generator (see Figure 3-1), connect the generator to the pressurized source and turn onthe water supply. The ‘‘external water insert’’ is supplied with a length of Tygon™ tubingfor connection to the water source.

2. Check to make sure that the water level in each tank in the generator is initially steady atFULL line. Approximately four liters of water are required to completely fill the generator.

Figure 3-1. External Water Fittings for Gravity or Pressure Feed.



Installing the Deionizer BagA deionizer bag hangs in each of the water tanks to remove small amounts of impuritiesintroduced into the water supply from the generator itself. The following procedure describesthe initial installation after the tanks have been filled with high quality deionized water.

Warning: Use of the deionizer bags is not a substitute for good quality water. They aresimply a final decontamination stage to further protect the generator cellfrom irreparable damage.

1. Remove the deionizer bag from the protective packaging.2. Inspect each bag thoroughly for holes or tears, indicated by loose deionizer beads on its

outer surface. If either bag is damaged in any manner, discard and replace it with a newdeionizer bag assembly (P/N 7601132).

3. Locate the ‘‘T’’ fastener, connected to one end of the deionizer bag. Insert the free end ofthe ‘‘T’’ fastener through the hole in the center of the water tank cap. Push the fastenerthrough the hole until it is securely attached.

Warning: Do not allow foreign material to fall into the water tanks while their caps areremoved. Water quality may be compromised, or tubing blockage canoccur.

4. Insert the deionizer bag into the water tank. Position the bag so that it does not block theoutlet port at the bottom of the tank, and screw the cap back onto the water tank. Makesure that the vent hole in the cap is not blocked or restricted.

5. Repeat this procedure with the second deionizer bag and water tank.



Connecting the PowerWarning: For system operating at voltages other than 117 VAC or 220 VAC, a locally-

approved 3-prong plug may be required to properly power the generator.Proper wiring specifications are given below. Prevent electrical shockthrough the use of proper plugs and good earth ground connections.

Line (L) Black LeadNeutral (N) White LeadEarth (E) Green/Yellow Lead

1. Make sure that the Power switch on the back panel is in the OFF position.2. Verify that the proper fuses are installed using the table below.

Voltage Fuse P/N96-106 VAC 8.0 amp A03-0067105-129 VAC 6.3 amp A03-0066207-253 VAC 3.15 amp 13216

3. Connect the appropriate power cord to the rear panel of the generator.4. Connect the free end of the power cord to an appropriate power source. Be sure that the

power cord and receptacle provide a good earth ground for the generator.


Pure, dry hydrogen at regulated pressure is available at the Hydrogen Output Port on the backof the generator. This port accepts 1/4" tubing, which can be connected to your equipment. Anadapter fitting is provided to convert from a 1/4" to 1/8".

Caution: If your external equipment requires an uninterrupted supply of hydrogen,you must connect a supplementary hydrogen source to your equipment.

Install a check valve on the Hydrogen Outlet Port to prevent reversepressurization, which may damage the purifier and the membrane whenusing a supplemental hydrogen source. It is also required to install a checkvalve on the Hydrogen Outlet Port if two or more generators are plumbedtogether.

The recommended Check Valve is Parker 4Z-C4L-1/3-EPR-SS. This checkvalve is stainless steel with an EPR seat and has a 1/3 psi crackingpressure.

Impurities are removed by the purifier and leave the generator through the Bleed Outlet foundon the back panel. For safety reasons, do not connect the Bleed Outlet to any type of tubingor block off the port in any way as this may put back pressure on the generator and destroy it.

Multiple Generator Installations

Gas Connections


Figure 3-2. Multiple Generator Installation Schematic, Model H2-1200 Series



Installation

All installation, operation, and maintenance procedures for the Parker Balston genera-tors should be performed by suitable personnel using reasonable care.

Multiple generators can be plumbed together to increase flow capacity. For each generatorinstallation set up, the following down stream Parker components are recommend; Shut offvalve, 4Z-B6LJ-SSP; Check valve, 4Z-C4L-1/3-EPR-SS and a Porter Instrument flow control-ler VCD1000-270. These components should be installed as indicated in the figure below.Once each installation set up is complete, they can be connected together and plumbed to a 3-way purge valve as shown (Parker P/N 4Z-B6XJ- SSP).

The above components are necessary to prevent faulty operation of multiple generators andimprove versatility.

• The shut off valve allows a single generator to be isolated from the other generators because of lackof demand or to set individual generator flow at start up.

• The check valve prevents one unit from back flowing another, if generator pressures are not exactlymatched.

• The flow control valve allows the user to set output flow evenly between the generators for mostefficient usage.

• The purge valve allows the hydrogen lines to be purged of impurities and aids in set up of generatorflow rates.

Set up

1. Follow installation guidelines for: Generator Location, Filling Water Tank, Installing Deionizer Bag,Connecting Power, as indicated in H2-1200 IOM

2. Open Shut-Off valve on Installation 1, close Shut-Off valves on other generator Installations in themultiple generator assembly.

3. Turn 3-way purge valve to atmosphere and connect to a flow meter.4. Follow Start Up procedure steps 1 to 6 in IOM5. Set flow using the flow control valve to the required flow rate. Divide the flow evenly between the

installed generators. For example if the demand is 2000cc/min at 90 psi and 2 generators are in-stalled, set generator 1 at 1000 cc/min and 90 psig (generator 2 is set to 100cc/min also).

6. Close Shut-Off valve. This generator is now set at the required flow and pressure.7. Repeat Set up steps 1 through 6 for generator Installation 2.8. Repeat Set up steps 1 through 6 for any additional generators. Remember to close Shut-Off valves to

the generators not being “set up”.9. Once all generators are set to the required flow and pressure, purge the hydrogen lines by first turning

the 3-way valve to pressurize the lines. Next turn the valve to vent to atmosphere allowing the gas tovent for 2 minutes. Repeat the pressurize purge process at least 5 times before allowing flow to theinstrument

OperationFollow all other H2-1200 IOM installation and operation recommendations.


Initial StartupAfter all of the preceding preparations and connections have been made, the generator isready for operation. The following instructions describe the initial startup procedure. Figure3-3 describes the symbols used to identify the controls and indicators used on the generator.

Front Panel Control Buttons Primary Function Secondary Function


Make selections inCONFIGURE andSERVICE modes ofthe control module

Cycle to next parameterin CONFIGURE andSERVICE modes of thecontrol module.

Start Hydrogen FlowSTARTSelect

STOPNext

Stop Hydrogen Flow

1.Makesurethatallgas

PressureRegulatorControl knob

Located under top door.Turn clockwise toINCREASEoutput pressure

Water tank full lineFront PanelWater TankView Ports

Water tank refill line

Figure 3-3 Symbol Identification


Bulletin TI-H2-1200J Chapter 3 Installation & Connections

Start Up1. If the line needs to be purged before the hydrogen can be used on the equipment, make sure a 3-way

valve is installed in line directly upstream from the instrument.

Note: The recommended 3-Way Valve is Parker 4Z-B6XJ-SSP.2. Make sure all gas connections are secure.

3. Set the Pressure Regulator under the top cover to minimal pressure by turning it in a counter-clock-wise direction (the knob should move up) until it cannot be turned any more.

4. On the back panel, switch the Power Switch to the ON position. The LCD will display the WARMUPmessage. Next, the purifier temperature will be displayed until a purifier temperature of 600°C isreached (approximately 20 minutes) and then the remaining warm-up time will be displayed (forapproximately 40 minutes more), for a total warm-up time of one hour.

Note: Except when the unit requires servicing, keep the Power Switch on, to prevent damage to thepalladium membrane in the purifier.

5. When the “Press START” message appears, press the Start/Select button on the front panel. Thewater pump inside the unit will begin to self-prime for 20 seconds. The left side of the LCD will showthe outlet pressure. The right side will show the present flow rate as a percentage of the generator’smaximum rated capacity.

6. Turn the pressure regulator in a clockwise direction to increase the outlet pressure. If 100 psig isrequired, turn the pressure regulator all the way in (clockwise) to the maximum value. If 40 psig is thedesired outlet pressure then turn the regulator approximately 3 full turns (360°) clockwise.

Note: The greater the volume between the hydrogen generator and the instrument, the longer it will take topressurize the line and the longer it will take for the display to indicate the set pressure.

7. Purging - If you have installed the Parker 3-Way valve in line and want to purge the lines, first turnthe valve to the middle position to pressurize the lines. Next turn the valve to the vent port position toallow the hydrogen gas to vent for 2 minutes. Repeat the pressurization/purge routine at least 5 timesbefore allowing flow to the instrument.

8. Flowing - Turn the three-way valve to the instrument flow direction. Adjust the flow controller (onthe instrument) until the desired flow rate is reached, with a maximum of 1200 cc/minute for the 9800or H2-1200, and 800 cc/minute for the H2-800.

Dual Unit Start Up1. Install a check valve (see Figure 3-2 and page 12) on the outlet of each hydrogen generator and

then plumb both outlets together.

2. Start the units in the same way as detailed above.

3. If two different pressures are required to run the application, such as Fuel and Carrier Gas for aGas Chromatograph application, set both generators to the maximum of the two required pres-sures, in step 6 in Start Up section above.

4. Install a reducing pressure regulator in-line before the inlet of the instrument requiring the lowerpressure (see Figure 3-2).



Controlled VentingWhen operating the generator for the first time, or after replacing any gas flow parts, the gasflow path will contain air. To obtain an initial hydrogen flow with less dilution, perform thecontrolled venting procedure described below.

1. Set the Pressure Regulator to minimal pressure by turning it in a counter clockwisedirection until it cannot be turned any further.

2. When the Press START message is displayed, press the Start/Select button on the frontpanel.

3. Turn the Pressure Regulator a small amount in a clockwise direction, while observing thepressure read-out on the LCD. Slowly adjust the pressure upward until the desired pressureis achieved.

4. Purge the lines either through the connected equipment, or through the 3-way valve at thefar end of the manifold (Figure 3-2).

5. Allow the system to vent in this manner for ten minutes. The generator and associatedplumbing should now be purged of air and ready for operation.

Note: To retain the maximum hydrogen purity provided by the generator, allow themanifold and the external equipment to be purged sufficiently. In some cases,a higher flow rate and a longer time may be required for the controlled ventingprocedure.



1. Press and hold the front panel Start/Select button while switching the back panel powerswitch to the ON position. Keep holding the Start/Select button until the LCD displaysthe CONFIG message.

2. Cycle through the parameters by pressing and releasing the Stop/Next button until thedesired parameter is displayed (Language, Pressure, EFT, or Baud Rate).

3. When the desired parameter is displayed on the LCD, press and release the Start/Selectbutton until the desired selection is displayed.

4. To save the selection, press the Stop/Next button. This will cycle to the next parameter.To make additional selections in CONFIGURE mode, repeat steps 2 through 4.

5. To exit from CONFIGURE mode, press and release the Stop/Next button until the EXITCONFIG message appears. Then press the (Start/Select) button to save the configura-tion parameter selections.

6. To start the generator, press the Start/Select button when PRESS START appears on theLCD.


Configuration ParametersWhen you have installed the generator and completed the gas connections, you can changethe units used to display pressure. On most systems, the pressure is displayed in psi. If youchoose to display the pressure in kPa instead, you will need to access the CONFIGUREmode of the control module. The CONFIGURE mode also permits you to change the defaulttime for excessive flow error detection and shutdown. The EFT (excessive flow timer) can bechanged for troubleshooting the instrument.

The selections which are available for each function are listed below.

Parameter Selections AvailableLanguage EnglishPressure psi, kPa

System default: psiEFT 39 seconds to 10 minutes

System default: 1 minuteBaud Rate I/O=Off, 1200, 2400, 4800, 9600, 19.2K

System default: 19.2K

System deTo change one of the above selections through the CONFIGURE mode:


Chapter 4 Operation

Operational SummaryThe following list summarizes the operational procedure required for using the hydrogengenerator.

Warning: Under no circumstances should the generator be operated with the coverremoved.

1. For proper operation, the deionizer bags must be installed (refer to page 10).2. Fill the water tanks to the FULL LINE with deionized water. To use the external water fill

option, connect the deionized water supply to the Water Inlet Port on the back panel ofthe generator using the proper fitting (see Figure 3-1).

3. Connect your downstream equipment to the Hydrogen Outlet Port on the back panel ofthe generator.

4. Properly adjust your external flow controlling devices so there is very little flow.5. Set the Pressure Regulator to minimal pressure by turning it in a counter-clockwise

direction until it cannot be turned any more.6. Check that the power switch on the back panel is in the ON position. Check that the

normal display mode is active.7. When the PRESS START message appears, press the Start/Select button on the front

panel. The LCD will display the output pressure and the flow rate percentage, to showthat hydrogen is being generated.

8. If the generator has been idle for an extended period of time, or components have beenreplaced, perform the controlled venting procedure found on page 16.

9. Adjust the pressure with the Pressure Regulator and then adjust the flow (see page 14for details).

Caution: Long periods of unattended operation are possible, provided that anadequate water supply is maintained. If more than 6 hours of standbyservice is anticipated, stop the generator (Stop/Next button), and vent theinternal pressure.

Note: To prolong the life of the purifier assembly, maintain power to the systemunless extended periods of non-use are expected.



Water LevelThe water tanks hold sufficient water for continuous rated operation for approximately oneand a half days. Water consumption is related to the rate of hydrogen gas used and ambientconditions, so the actual water consumption rate may vary. Provided the ADD WATERmessage has not appeared, you may add water to the tanks without disturbing normal opera-tion.

You may be using one of these three methods of supplying water to the generator.

• Manually Filling Tanks• Gravity Feed From an External Reservoir• Pressurized External Water Source

Follow the directions below that apply to the method that you are using.

Parker Hannifin Corporation has designed a water purification system called the HydroGen™Mate, that provides high purity deionized water for all methods of filling the hydrogen genera-tors. The HydroGen™ Mate purifies standard tap water to deliver high quality deionized waterwith resistivity greater than 5 Meg-ohm/cm. Model 72-230 is used for manual filling of the unitsand is equipped with a dispensing gun. Model 72-231 is designed for connecting directly to theinlet of the hydrogen generator as an external pressurized water source.

Filling the Generator ManuallyIf you are manually adding water to the water tank in the generator, make sure that the ‘‘waterinlet plug’’ is always inserted in the Water Inlet Port on the back of the generator.

Supply deionized distilled water to the generator whenever the water level falls below theREFILL line using the following procedure:

1. Open the top door of the generator and unscrew the fill caps of both water tanks.2. Fill both tanks with deionized, distilled water until the water level in each tank is steady

at the FULL line. Approximately four liters of water are required to completely fill thegenerator.

3. Before replacing the caps, make sure that the deionizer bags are installed correctly asdescribed on page 10.


Gravity Feed From External Source1. With the round external water fitting connected to the Water Inlet Port on the back of the

generator (see Figure 3-1), fill the external reservoir with deionized distilled water. The‘‘external water insert’’ is supplied with a length of TygonTM tubing for connection to thereservoir.

2. Check to make sure that the water level in each tank in the generator is filled to the FULLline. Approximately four liters of water are required to completely fill the generator.

External Pressurized SourceWhen connected to a pressurized water source, you must use a recirculating loop at thegenerator to ensure that only fresh deionized, distilled water is used.

1. With the hexagonal external water fitting connected to the Water Inlet Port on the back ofthe generator (see Figure 3-1), connect the generator to the pressurized source (max.pressure = 100 psig) and turn on the water supply. The ‘‘external water insert’’ is suppliedwith a length of TygonTM tubing for connection to the water source.

2. Check to make sure that the water level in each tank in the generator is filled to theFULL line. Approximately four liters of water are required to completely fill the genera-tor.

Note: During normal operation, the water levels in each tank may not always be inequilibrium. Do not report this as a problem. As operation continues,equilibrium will be restored.

Chapter 4 Operation

Schedule of Maintenance ItemsThe following list is a quick summary of the maintenance schedule that will ensure properoperation of the hydrogen generator.

Water Level / Refilling When the water level approaches the REFILL line on thefront panel of the generator, or whenever the ADDWATER message has been displayed.

Deionizer Replacement Rinse the water tanks and replace the deionizer bagsevery six months, or whenever the CHANGE WATERmessage has been displayed.


Bulletin TI-H2-1200J Chapter 5 Maintenance

MaintenanceAll maintenance activities should be performed by suitable personnel using reason-able care.

Periodic maintenance for the H2-800, H2-1200 and 9800 hydrogen generators is straightfor-ward. These tasks include refilling the water on an as-needed basis, replacing the deionizerbags, and occasionally draining and rinsing the water bottles.

Caution: When performing routine service, carefully follow the instructions providedin this section to avoid injury or damage. Service should be performed bypersons familiar with the service and safety requirements of electrome-chanical / electrochemical devices.

The following list is a quick summary of the maintenance schedule that will ensure properoperation of the hydrogen generator.

Water Level / Refilling When the water level approaches the REFILL line on thefront panel of the generator, or whenever the ADDWATER message has been displayed.

Deionizer Replacement Rinse the water tanks and replace the deionizer bagsevery six months, or whenever the CHANGE WATERmessage has been displayed.


Rinsing / Draining the Water TanksThe water tanks should be rinsed and the deionizer bags replaced every six months or when-ever the CHANGE WATER message has been displayed.

1. Press the Stop/Next button to stop generating hydrogen. Damage to the cell membranecan result if the unit is still generating when the water tanks are drained.

2. If you are using the External Water Fill feature, turn off the external water supply. Alter-natively, disconnect the external water supply from the Water Inlet Port on the backpanel, and insert the ‘‘water inlet plug’’ into the Water Inlet Port.

3. Vent the internal pressure from the generator by turning the Pressure Regulator counter-clockwise until it will not turn any more.

4. Lift the top door of the generator and unscrew the caps from the water tanks.

5. Remove the caps and deionizer bags from the generator. Separate the deionizer bags fromthe caps and discard the bags.

6. Connect the Drain Port Insert to the Drain Port on the lower part of the back panel of thegenerator. Use the 1/4" tubing on the insert for convenient drainage.

7. Press and hold the Stop/Next button. Keep holding the Stop/Next button while pressingand holding the Start/Select button. Keep both buttons pushed in until the message,SERVICE is displayed on the LCD. Then release both buttons.

8. With the DRAIN WATER TANK function displayed, and the Drain Port Insert in place,press the Start/Select button. DRAIN WATER TANK remains displayed on the LCD.The water starts pumping from the water tanks out through the Drain Port on the backpanel.

9. When you have finished draining the water from the tanks, stop the pump by pressing theStart/Select button. The pump stops. The DRAIN WATER TANK message will still bedisplayed.

10. Rinse and drain both tanks several times with fresh, deionized, distilled water. This isaccomplished by filling the tanks, then draining them as described in steps 8 and 9.

11. To exit the SERVICE mode, press and release the Stop/Next button until the messageEXIT SERVICE displays.

12. To return the system display to NORMAL mode, press the Start/Select button only once.

13. Remove the Drain Port Insert.

Chapter 5 Maintenance


Bulletin TI-H2-1200J Chapter 5 Maintenance

14. If you are using the External Water Fill feature, remove the ‘‘Water Inlet Plug’’, then turnon or re-connect the external water supply to the Water Inlet Port. Or, manually fill thetanks to the FULL mark indicated on the front panel view port. The tanks hold approxi-mately 4 liters of water.

15. Inspect new deionizer bags thoroughly for holes or tears, indicated by loose deionizerbeads on its outer surface. If either bag is damaged in any manner, discard and replace itwith a new deionizer bag assembly (P/N 7601132).

16. Remove the deionizer bag from the cap on the generator and dispose of it, then removethe new bag from the protective packaging.

17. Locate the ‘‘T’’ fastener, connected to one end of the deionizer bag. Insert the free end ofthe ‘‘T’’ fastener through the hole in the center of the water tank cap. Push the fastenerthrough the hole until it is secure.

Warning: Do not let foreign material fall into the water tanks while their caps areremoved. Water quality may be compromised, or tubing blockage canoccur.

18. Insert the deionizer bag into the water tank. Position the bag so that it does not block theoutlet port at the bottom of the tank, and the cap can be screwed onto the tank. Make surethat the vent hole in the cap is not blocked or restricted.

19. Repeat steps 15 through 18 with the second deionizer bag and water tank.

20. When you are finished with any service to the unit, perform a controlled venting to purgeany air from the system. Controlled venting is described on page 16.

21. Start using the generator as described on page 15.


TroubleshootingThis troubleshooting guide provides you with a logical sequence to follow while investigatingproblems.

Warning: Due to the pressure and the nature of the gases involved, use a protectiveface shield or other appropriate equipment whenever servicing or trouble-shooting a hydrogen generator with the cover removed. Troubleshootingshould be performed by someone familiar with the service and safetyrequirements of electrochemical equipment.

Typical Generator Operating CharacteristicsElectrochemical Cell Assembly Voltage:You can monitor cell voltage by accessing the SERVICE mode of the control module (page25). Observed cell voltage varies with the flow rate of the hydrogen output. The observed cellvoltage may vary +10% from the voltages shown below. However, the voltages shouldvary consistently across the various flow rates. For example, the observed cell voltagecould vary consistently 3% above the voltages shown below for all of the flow rates. Aproblem is indicated if the variance is inconsistent across the different flow rate percent-ages.

Flow Rate Percentage H2-800 Cell Voltage 9800, H2-1200 Cell Voltage

20% 6.7 VDC 7.0 VDC40% 6.9 VDC 7.3 VDC60% 7.0 VDC 7.5 VDC80% 7.1 VDC 7.8 VDC100% 7.3 VDC 8.1 VDC

Chapter 6 Troubleshooting

Cell Overvoltage:Cell overvoltage occurs when the voltage across the terminals of the cell assembly exceedsthe preset voltage of 11.0 VDC.

Note: The cell assembly acts as a battery and maintains a voltage of 0 to 8 VDCacross the terminals for some time after power has been removed.



Excessive Flow Detection:The circuitry of the generator is designed to stop the generation of hydrogen if thesystem cannot maintain or increase pressure. The cell pressure is monitored by a pres-sure transducer. When power is supplied to the cell, the cell pressure should increaseafter startup and remain constant when operating. If these conditions are not met, theexcessive flow detection system initiates a timer. If the system cannot build pressurebefore the excessive flow timer (EFT) lapses, the system shuts down the generatingpower to prevent damage to the cell.

When the generator is built, the EFT parameter is set to a one minute default time. Thedefault time for the EFT timer is selectable through the CONFIGURE mode of the controlmodule (page 16).

The excessive flow detection system can be temporarily overridden for troubleshootingpurposes through the SERVICE mode of the control module (page 26).

Warning: The excessive flow detection system can be temporarily re-configured oroverridden for troubleshooting. However, this is an important safety functionfor the system and the excessive flow timer (EFT) should never be disabledfor everyday use.

Low Water Detection:The low water condition is detected by a signal between two electrodes found in the back ofthe right water tank. If there is no water, a shutdown signal is generated which will shut offpower to the cell assembly.

Change Water Detection:The quality of the water is monitored using a signal between the electrodes found in the backof the right water tank. If the resistivity of the water falls below an optimal level, a shutdownsignal is generated which will shut off power to the cell assembly.

Pressure RegulatorThe control knob of the Pressure Regulator allows mechanical control over the pressure ofthe outgoing gas supply. The pressure of the outgoing gas supply is monitored by the pressuretransducer and translated into the pressure reading which is displayed on the LCD. The flowrate is displayed as the percentage of maximum flow rate.

Cell PressureUnder normal operating conditions, the system maintains the internal cell pressure at 140±1 psi (965 kPa).



Relief ValveThe cell assembly relief valve is set to open when the internal cell assembly pressure reaches175±5 psi (1172±5 kPa).

Water LevelA capacitive level sensor outside the cell assembly maintains the correct level of water withinthe electrochemical cell. If the water level is too high, a solenoid valve releases some of thewater from the electrochemical cell assembly.

Purifier TemperatureThe purifier heater maintains temperature in the palladium purifier above 600°C. If thepurifier does not reach the threshold temperature and maintain it, the system cannot be run.

The Service ModeThe SERVICE mode of the internal control module gives you access to information that willhelp in troubleshooting. You can display the current temperature of the purifier, the cellvoltage, and the pressure within the electrochemical cell. You can also access ROM informa-tion, and display the error bits (page 27).

Caution: You can access the SERVICE mode when the generator is operating.However do not initiate the Drain Water Tank function while the system isgenerating hydrogen. To use the Drain Water Tank function refer to page 21.

To access the SERVICE mode:

1. If you are generating hydrogen: Press and hold the Start/Select button. Keep holding theStart/Select button while pressing and holding the Stop/Next button. Keep both buttonspushed in until the message, SERVICE, is displayed on the LCD.If you are not generating hydrogen: Press and hold the Stop/Next button. Keep holdingthe Stop/Next button while pressing and holding the Start/Select button. Keep bothbuttons pushed in until the message, SERVICE, is displayed on the LCD.

2. After releasing both buttons, the DRAIN WATER TANK function is displayed on theLCD. Skip this function by pressing the Stop/Next button. Cycle through the SERVICEmode functions by pressing and releasing the Stop/Next button until the desired functionis displayed. The sequence of the messages and an example display for each message areshown in the following table.


Bulletin TI-H2-1200J Chapter 6 Troubleshooting

Service Mode Functions:

Function Example MessagesDrain Water Tank Drain Water TankEFT Status EFT: 1:00Purifier Temperature Heater = 600°CCell Voltage Cell = 6.6 VCell Pressure Cell = 140 PSIROM Information R; v.vv; ccccw

Where R is the revision; v is the version number;c = checksum, w = warm start (if displayed).

Display Bits P = 00 S = 00 L = 00Exit Service Exit Service

Caution: The Excessive Flow Timer (EFT) is capable of temporarily being turned off, ifnecessary, during troubleshooting. However, you must re-enable the EFT beforeresuming normal operation of the generator. If the EFT is turned on, the EFTStatus message will be ‘‘EFT’’ along with the time selected. If the EFT is turnedoff, the EFT Status message will be ‘‘OFF’’. Toggle the EFT Status on and off bypressing the Start/Select button while the EFT status is displayed.

When you have finished using the SERVICE mode:

1. To exit from the SERVICE mode, press and release the Stop/Next button until themessage, EXIT SERVICE displays.

2. To return the system display to NORMAL mode, press the Start/Select button.


ROM Information and Display BitsThese two functions, which you can access in the SERVICE mode of the control module, asdescribed below:

ROM Information:ROM information displays the firmware revision letter and the firmware version number,followed by the four-digit checksum. The checksum is used to verify that the total number ofprogrammed bits is correct for the firmware revision level. A ‘‘w’’ after the checksum indi-cates that a ‘‘warm start’’ was performed. If there is no ‘‘w’’, the startup was a ‘‘cold start.’’ Awarm start occurs if the system resets without loss of power having occurred. A cold startoccurs when the power is applied to the system.

Display Bits:Display Bits let you look at the hexadecimal codes as an aid in troubleshooting the sensorsand the analog control board. The hexadecimal codes stand for the error bits which aresensed. There are two types of error bits which you can interpret: sensor bits and latched bits.Sensor bits are indicated by ‘‘S’’ before the numeric code. Latched bits are indicated by ‘‘L’’before the numeric code. Each error code that is displayed can stand for a single error or asum of errors.

Bit Definitions:

Hexadecimal Code Value Definition04 Low Water02 Bad Water01 Hydrogen Leak (external sensor)

Sensor bits are displayed for the sum of all errors which are being sensed in real time. IfLOW WATER and BAD WATER are being sensed, S=06 displays the sum of 04 and 02.

Latched bits are stored for any momentary error sensed; all latched error bits are summeduntil the Start/Select button is pressed. If two errors have been sensed, i.e., LOW WATERand BAD WATER, the display reads L=06. The latched bit error display is reset by pressingthe Start/Select button. If L=00 is displayed, the bits have been reset, or there have been noerrors sensed.




Error ConditionsWhen the system has been stopped by an error condition, use the following procedure toisolate the problem:

1. If the ADD WATER message is displayed, add water as described on page 18.2. If there are no other errors displayed, press the Start/Select button to remove the error

message from the LCD.3. Press the Start/Select button when the PRESS START message appears. Monitor the

generator for about 10 minutes, and watch for any other system errors.If the EXCESSIVE FLOW message is displayed, there is a leak or a perceived leak in the gasflow path. Check that all external connections are gas tight, and that the volume of theexternal equipment is not too great for the rated output of the generator.

If the CHANGE WATER message is displayed, poor water quality is indicated. Rinse thewater tanks and change the deionizer bags as described on page 21.

If the CELL OVERVOLTAGE message is displayed, a water pump fault is likely. Check thewater pump connections. Check the water supply. If the water supply or the water pump arenot at fault, the CELL OVERVOLTAGE error could indicate a failing generator cell whichshould be replaced.

If the PURIFIER ERROR message is displayed, the palladium purifier is not heated totemperature. This usually indicates an attempt to start the generator before the purifier iswarmed up. Check the connections to the purifier. If the error cannot be corrected by com-pleting the purifier warm-up cycle, this indicates a failure of the purifier which must bereplaced.

If the WATCHDOG TIMER message is displayed, the system failed to reset when power wasapplied. Press the Start/Select button to reset the system and clear the message. If you areunable to clear the message, a firmware or hardware error exists.

If the HYDROGEN LEAK message is displayed, a leak in the external equipment is indi-cated. Check that all external connections are gas tight. External leak detection is availableonly if you have an external hydrogen detecting device installed. This device must provide a5 volt digital signal between pin 8 (+) and pin 9 (ground) of the External Control connectoron the back of the generator when a hydrogen leak is detected. Correct the leak and press theStart/Select button to reset the system and clear the message.



Troubleshooting GuideAll troubleshooting activities should be performed by suitable personnel usingreasonable care.

The following table lists possible symptoms, probable causes and remedies for problems thatmay be encountered while using the hydrogen generator.

Caution: Do not allow the generator cell assembly to become completely dry orleave the any of the caps off after performing maintenance operations. If thecell assembly dries out, permanent damage to the cell will result.

Caution: Do not use commercial-type leak detection fluids on plastic parts in thegenerator. These fluids may cause cracking and crazing, leading to ultimatefailure. Use a solution of 4-5 milliliters of liquid dish washing detergent inone liter of distilled water.

Warning: Due to the pressure and nature of the gases involved, use a protective faceshield or other appropriate equipment whenever servicing or troubleshoot-ing the generator with the cover removed. Troubleshooting should beperformed by someone familiar with the service and safety requirements ofelectrochemical equipment.

Caution: This product is shelf life sensitive. Do not store for more than3 months prior to installation and operation.

Note: To arrange for system service, contact the Technical ServicesDepartment at 1-800-343-4048, 8AM to 5PM Eastern Time (NorthAmerica only), or email at [email protected]. Forother locations, please contact your local representative. Pleasehave the serial number available when calling for assistance.



Symptom Probable Cause RemedyNo gas output Disconnected power Connect to power source

-No LCD Display

No gas output Blown fuse Replace fuse-Power switch ON

Power switch failure Bad Power SwitchContact Parker HannifinTechnical Service

Power supply failure Bad Power SupplyContact Parker HannifinTechnical Service

No gas output Gas flow may have been Check to see if a shutoff-Pressure displays on LCD closed off external valve is closing off the external-0 to 8% flow rate displays to the generator. gas flow. Open external valve.

No gas output Leak in external Locate and repair any-Power switch ON equipment hookup external leaks.-EXCESSIVE FLOWerror is displayed.

Internal leak Locate and repair anyinternal leaks. Typicalproblem areas are:-Port fittings on the cell-Tubing connectionsat the top of the cell-Tubing connections

Leak at relief valve Bad relief valve assembly.Contact Parker HannifinTechnical Service

Leak at generator cell Bad cell assembly.Contact Parker HannifinTechnical Service

Cell membrane puncture Bad cell assembly.Contact Parker HannifinTechnical Service

No gas pressure No load connected Connect load- No pressure is displayed

CELL OVERVOLTAGE No water Check water supply.-error display


Symptom Probable Cause RemedyCELL OVERVOLTAGE Cell overvoltage Check cell voltage

-error display (see page 23). If cell bad, contactParker Hannifin Technical Service

Printed circuit board failure Bad control board. (contact ParkerHannifin Technical Service)

Digital control board failure Bad digital display board. (contactParker Hannifin Technical Service)

Moisture at the bleed outlet Back pressure in the Check the angle of thepurifier bleed outlet tubing bleed outlet tubing

and whether the bleedoutlet is venting properly

PURIFIER ERROR Purifier failure Bad purifier assembly. (ContactParker Hannifin Technical Service)

No gas output Attempted to start generator Press Start/Select button-PURIFIER ERROR before purifier reached and allow purifieris displayed sufficient temperature to complete the warm-up time.

Purifier cannot reach Bad purifier assembly. (Contactsufficient temperature when Parker Hannifin Technical Service)warm-up time completes.

No gas output Water of insufficient Drain and rinse water tanks as-CHANGE WATER quality is being used. described on page 21.error is displayed Fill the tanks with deionized,

distilled water.

No gas output Insufficient water Change deionizer bags.-ADD WATER Change/re-orient small deionizer bagserror is displayed in bracket behind water bottles.

Add deionized, distilled water.




Symptom Probable Cause Remedy

WATCHDOG TIMER System failed to reset Press the Start/Select error is displayed. when power was applied. button to reset the system

and clear the message.If you are unable to clearthe message, contact ParkerHannifin Technical Service.

HYDROGEN LEAK External sensor detects Locate and correct anyerror is displayed. hydrogen leak external hydrogen leaks external

to the generator. to the generator.

Front panel Start/Select Time delay Press the buttons aand Stop/Next control between updates little more slowlybuttons do not select the by the internal control or a little more quickly,control module function as module. depending on whetherrequested. The function is skipped

or repeated.



Chapter 7 Preparation for Storage or Shipment

Preparation for StorageUse the following procedure whenever you intend to store the hydrogen generator forany extended period of time.

1. Vent the hydrogen pressure from within the generator.2. Turn the Pressure Regulator control counter-clockwise until it cannot be turned any

more or until the knob spins freely.3. Cap the HYDROGEN OUTPUT port on the back of the generator, or leave it con-

nected to your external equipment.4. Fill the water tanks approximately half full with deionized, distilled water. Check this

water level every two months.

Preparation for ShipmentIf it becomes necessary to ship the generator by commercial carrier, make sure that youfollow the procedure below to prevent damage.

1. Vent the hydrogen pressure from within the generator.2. Drain all the water from the water tanks as described on page 21.3. Pack the generator carefully in the original packing box or equivalent to prevent

handling and transportation damage.4. You MUST ship the generator in a manner that will prevent freezing. Freezing

temperatures will cause irreparable damage to the generator cell assembly.


Trademark Acknowledgements

Lexan ® is a registered trademark of General Electric CompanyLoctite ® is a registered trademark of Loctite CorporationViton ® is a registered trademark of E.I. du Pont de Nemours and Company

©Parker Hannifin Corporation 1987, 2007Printed in U.S.A. Bulletin TI-H2-1200J

Parker Hannifin CorporationFiltration and Separation Division242 Neck RoadHaverhill, MA 01835Tel: 978-858-0505 Fax: 978-556-7501

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Documents

Installation, Operation, and Maintenance Manual · 1 Parker Hannifin Corporation Filtration and Separation Division Haverhill, MA • 1-800-343-4048 Bulletin TI-H2-1200J Introduction