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BA 001C/07/en/02.97No. 50040314 smartec
CLD 130ConductivityMeasurement
Operating Instructions
Quality made byEndress+Hauser
ISO 9001
Table of contents
1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 31.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.2 Application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.3 Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Measuring system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 – 52.1 Measuring principle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42.2 Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42.3 Measuring transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42.4 Designs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 – 93.1 Sensor with integrated transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.2 Sensor with separate transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73.3 Sensor with integrated transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.4 Immersion sensor with separate transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.5 Separate transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4. Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 – 114.1 Connection principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104.2 Sensor with integrated transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104.3 Sensor with separate transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5. Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125.1 Power-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125.2 Instrument settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125.3 ATC setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125.4 Measuring mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 – 166.1 Measuring range change-over . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136.2 ATC adjustment (automatical temperature compensation) . . . . . . . . . . . . . . . . . . . . . 146.3 Signal output change-over . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156.4 Signal output assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156.5 Remote switching of current output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7. Maintenance and troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 – 187.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177.2 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177.3 Instrument function test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8. Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
BE1LD130.CHP
Smartec CLD 130 Table of contents
1
1. General
1.1 Unpacking
• Inspect for any damaged packaging!The post office or forwarding agent must beinformed of any damage. Damaged packaging material must be retained until the matter has been settled.
• Verify that the contents are undamaged!Inform the post office or forwarding agent aswell as the supplier of any damage.
• Check if the delivery is complete andagrees with the shipping documents as wellas your order:
• Delivered quantity• Instrument type and version• Accessories• Operating instruction(s)• Instrument identification card(s)
If you have any questions, consult yoursupplier or the Endress+Hauser sales centerin your area (see back page of theseoperating instructions for addresses).
1.2 Application
Use: Conductivity measurement
Measuring principle: inductive
Application area: in liquids
Measuring range: medium to high conductivities
Special features: sterilizableno influence of contamination on measurement, resistant tochemicals, fully encapsulated
Applications: food industry,chemical industry,electroplating
Fig. 1.1: NameplateSmartec CLD 130
1. General Smartec CLD 130
2
1.3 Order code
Inductive instrument Smartec CLD 130
DesignP Compact design with in situ measuring transmitter / PEEKW Separate measuring transmitter with 5 m cable / PEEKX Separate measuring transmitter with special cable length (max. 15 m) / PEEK
VersionMV1 Dairy fitting connection DN 50 to DIN 11851RF1 Round flange DN40/PN10 and loose flangeTF1 Immersion sensor IP68 / loose fl. UP-GF DN50 / PN10 (W/X design only)CS1 2" clamp fittingET1 Immersion version with round flange, l=2000mm GE1 Internal thread G 1 1/2"IF1 2" IDF flangeVA1 Varivent fitting for housing TN
Measuring ranges0 0 ... 2000 µS/cm1 0 ... 20 mS/cm2 0 ... 200 mS/cm3 0 ... 1000 mS/cm4 20 / 2 mS/cm with remote switching5 200 / 20 mS/cm with remote switching6 1000 / 100 mS/cm with remote switching
ATC rangeA ATC range 1 ... 3 %/K
Power supply0 Power supply 230 V, 50 / 60 Hz1 Power supply 110 V, 50 / 60 Hz2 Power supply 200 V, 50 / 60 Hz3 Power supply 24 V, 50 / 60 Hz4 Power supply 48 V, 50 / 60 Hz5 Power supply 100 V, 50 / 60 Hz6 Power supply 127 V, 50 / 60 Hz7 Power supply 240 V, 50 / 60 Hz8 Power supply 24 V m. sep. DC/AC converter
Instrument output0 0 ... 20 mA, max. 500 Ω2 4 ... 20 mA, max. 500 Ω
CLD 130– ⇐ complete order code
BE1LD130.CHP
Smartec CLD 130 1. General
3
2. Measuring system
2.1 Measuring principle
The test medium is a liquid conductorcoupling the magnetic field of twomagnetically isolated induction coils. The AC voltage U1 applied to coil T1 is transmittedto the second coil T2 proportional to theconductance G of the test medium. Thisyields a linear relationship between theconductance G and the output voltage U2
which is converted and rectified into a voltageproportional to the conductance.This measuring principle offers followingadvantages:• no electrodes, therefore no polarization• faultless measurement in media or solutions
with a tendency to form deposits
A Pt 100 temperature sensor is fitted insidethe sensor to measure the temperature.
2.2 Sensor
The sensor is injection-moulded of chemically,mechanically and thermally resistant PEEK(polyether ether ketone), ensuring that it isfree of crevices and joints, and making itbiologically safe.
The sensor shaft contains the two inductioncoils and a temperature sensor Pt 100 whichis in direct contact with the test medium.
The use of special elements and materialsmakes the sensor suitable for continuousoperation at temperatures of up to + 100 °C,and short-term operation at up to + 130 °C.Therefore, Smartec can be sterilized.
The sensor is available in different mountingvariants with integrated or separatemeasuring transmitter.
2.3 Measuring transmitter
The measuring transmitter• determines the conductivity of the liquid,
and indicates the conductivity value basedon reference temperature 25 °C and
• supplies this measured value as current (0 or 4 ... 20 mA) at the signal output.
The instrument requires power supply (seecover label).The actual measured value and the settemperature coefficient can be read externallythrough a viewglass in the housing cover.
Four basic measuring ranges can be freelyselected:
• 0 ... 2000 µS/cm• 0 ... 20 mS/cm• 0 ... 200 mS/cm• 0 ... 1000 mS/cm
The zero point can be displaced within theselected measuring range, increasing thesensitivity, and thus spreading the range,considerably. This permits precisemeasurement even in media with slightconductivity changes.
Medium
Chemical attack Resistance
Medium Concentr.(%)
Temp.(°C)
PVC-C PVDF PEEK
Nitric acid HNO3 5
up to 40
20602060
++++
++++
+++–
Phosphoric acid H3PO4 up to 10 2060
++
++
++
Caustic soda solutionNaOH
3 205090
+++
+0–
+++
sodium hypochloriteLabarraque’s solutionNaOCl
dilutedaqueous
205090
++0
00–
+++
Fig. 2.2 Excerpt from resistancetables for PVDF, PEEKand PVC-C
Legend:+ resistant0 conditionally resistant– not resistant
Fig. 2.1: The inductive conductivitymeasuring principle
2. Measuring system Smartec CLD 130
4
2.4 Designs
2.4.1 Sensor with integrated transmitter
The sensor with integrated measuringtransmitter including screw connection,provides a complete measuring unit.
2.4.2 Sensor with separatetransmitter
The standard version provides the measuringtransmitter with 5 m connected cable. Thesensor is connected to the fitted cable plugs.
2.4.3 Immersion sensor with integrated transmitter
The measuring system comprises: Measuring transmitter with immersion pipe,sensor and round flange.
2.4.4 Immersion sensor withseparate transmitter
The measuring system comprises:Separate transmitter, immersion sensor IP 68with connected cable, round flange with strainrelief for freely suspended sensor.
Power supply
Signal output 0 / 4 … 20 mA
Measuring cableDouble coaxial cable double shielded with fittedplugs for connection ofsensor
Power supply
Transmitter
Signal output 0 / 4 - 20 mA
7-pole connectionwith cable
Power supply
Signal output0 / 4 - 20 mA
Fig. 2.3: Sensor with integrated(left) transmitter
Fig. 2.5: Immersion sensor with(right) integrated transmitter
Fig. 2.4: Measuring transmitter(left) connected to separate
sensor via 5 m cable
Fig. 2.6: Immersion sensor with (right) separate measuring
transmitter
BE1LD130.CHP
Smartec CLD 130 2. Measuring system
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3. Installation
3.1 Sensor with integratedtransmitter
The Smartec measuring system is available indifferent designs for all commonly usedmounting and installation versions forindustrial applications:
• Dairy fitting connection DN 50, DIN 11851• Internal thread G 1 1/2"• Varivent fitting• 2" IDF flange• 2" clamp fitting• Round flange DN 40 / PN 10
The instrument is installed at the measuringpoint using the selected connections, i.e.dairy fitting connection (see fig. 3.1).For installations in pipelines it must beensured that the sensor is mounted at a pointwhich is always fully flooded during themeasuring process.If the sensor is mounted vertically onto thepipeline, it should be installed in a culvert.For measurements in high viscosity media(e.g. emulsions) the sensor should beinstalled in a pipe bend so that the mediaflows directly through the measuring channel.
The version with integrated measuringtransmitter is suitable for use with continuousmedium temperatures of up to 90 °C andambient temperatures of up to 50 °C.
Note:The suitable connection flange forpipe or tank has to be provided by customer.
155.5
min
. 20
min
.D
N 6
5
Pg 16,reduced
G 11/2"
118.5
250
ø 34
107
85
22
Pg 16,reduced
118.5
250
ø 34
69
57
234
85
➑
234
85
250
102
Fig. 3.1: Sensors with integratedtransmitter in the connection head
Sensor with dairy fitting connectionDN 50, DIN 11851
Sensor with internal thread G 1 1/2" Sensor with Varivent fitting Sensor with 2" IDF flange Sensor with round flange
DN 40 / PN 10➑ Sensor with 2" clamp fitting
3. Installation Smartec CLD 130
6
3.2 Sensor with separatetransmitter
Smartec with a separate measuringtransmitter is available for industrialapplications with high permanenttemperatures (>90 °C) and hardly accessiblemeasuring points.
The sensor is mounted at the measuring point.
The measuring transmitter is then mountedseparately and connected to the sensor via a5 metres long double shielded double coaxialcable.The ambient temperature of the measuringtransmitter may be max. + 60 °C.
Warning:The ready-made cable must not beshortened in any case!
230
102
85
85
85
85
G 11/2 "
➑
69
DN40
DN50
D 150 165k 110 125l 18 18a 62 78b 16 18
a k
D
b
D
l
Fig. 3.2: Sensors with connection head without measuring transmitter
Sensor with dairy fitting connectionDN 40 / PN 10
Sensor with dairy fitting connectionDN 50, DIN 11851
Sensor with 2" clamp connection Sensor with 2" IDF flange Sensor with internal thread G 11/2"➑ Sensor with Varivent fitting
(stainless steel adapter)
Fig. 3.3: Dimensioned drawing of the used flanges for the corresponding installationversions
BE1LD130.CHP
Smartec CLD 130 3. Installation
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3.3 Immersion sensor withintegrated transmitter
Smartec as an immersion assembly with anintegrated measuring transmitter is used inlarge basins or open channels.
The measuring signal (0/4 ... 20 mA) can betransmitted across larger distances (up to amaximum of 1000 m).
The immersion assembly is installed with around flange DN 50 / PN 10. It is made ofPVC-C and is available in different lengths(400 bis 2000 mm).
This assembly can be used in temperaturesof up to 90 °C (permanent temperature 80 °C)and under pressures of up to 6 bar (at 20 °C)in closed containers.
3.4 Immersion sensor withseparate transmitter
For installation in tanks or other closedcontainers, Smartec CLD 130 is available asan immersion assembly with a separatemeasuring transmitter.
The inductive sensor is mounted in theassembly using a bayonet lock. The assemblymaterial PVC-C is resistant to aggressivechemicals. For application in CIP systems, theassembly is mounted in a V4A version using aDN 65 dairy pipe fitting.
For open containers and channels the sensoris mounted freely suspended with clampconnection and strain relief.
In case of the IP 68 immersion sensor themeasuring cable is protected from themedium by a pressure-proof silicone hose.The cable gland in the immersion sensor ismounted by means of a bayonet lock.
Ø 123
Ø 47
82
277
86
172
82
Ø 123
Ø 47
Ø88
400
– 2
000
mm
imm
ersi
on d
epth
220
82
63
172
Pg 16reduced
∅ 47
measuringcable
∅ 49
Fig. 3.5: Immersion sensors for measuring transmitters
Immersion sensor TF1 (ingressprotection IP 68)with PVDF sensor cap, 2 m silicone hose and roundflange DN 50/PN 10
Immersion sensor ET 1 made of PVC in different lengths(400 to 2000 mm immersion depth)with round flange DN 50 / PN 10
Fig. 3.4: Immersion sensor withintegrated transmitter
3. Installation Smartec CLD 130
8
Exchanging of the sensor
1. Unscrew Pg thread of cable duct on top of the assembly (see fig. 3.5, or ).2. Loosen sensor by turning it anticlockwise (bayonet lock ➑).3. Withdraw the sensor part with protection sleeve from immersion tube .4. Unscrew Pg thread of protection sleeve.5. Take sensor out of guide notch of protection sleeve and loosen plug connections , .6. Assembe the sensor in reverse order.
Warning:When assembling or disassemblingthe sensor the Pg thread must beunscrewed before pulling themeasuring cable (see fig. 3.5).
110
18
133
87
54
70
155
Ø 40
min.
9
Retainingstrap
Fig. 3.7: Mounting plate for wall and post mounting of separate measuring transmitter
➑
Fig. 3.6: Cable connection and assembling of sensor for immersion versions
3.5 Separate transmitter
The separate measuring transmitter can beeasily installed on wall and posts using amounting plate.
The mounting plate is secured to a wall using3 screws and the supplied spacer bushes.
The transmitter is attached to pipes or postsby means of a retaining strap.
The sensor cable with 4 plugs is introduced inthe sensor housing through the Pg thread.
Then put together the cable plugs, tighten Pg 16 thread and screw cover on theconnection head.
BE1LD130.CHP
Smartec CLD 130 3. Installation
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4. Electrical connection
4.1 Connection principles
Attention:• The instrument must be grounded
before operation!• If malfunctions cannot be
remedied, the instrument must beremoved from service andprotected against accidentalstart-up.Repair work can only be carriedout directly by the manufacturer orby the Endress + Hauser serviceorganization.
Warning:• Notes and warnings of these
operating instructions must bestrictly adhered to! Maintenancework can only be carried out byqualified personnel if theinstrument remains connected tothe power supply!
• The instrument is protectedagainst interference, pulse-shapedtransients, high frequency andelectrostatic discharges accordingto the Namur recommendations, IEC 801 und DIN VDE 0843.However, this is only valid for aproperly grounded instrument witha screened measured value outputline.
• For the separate version of theinstrument we recommend not towire the measuring line to thesensor directly next to ahigh-voltage line. If this isunavoidable, embed measuringline in a grounded steel pipe.
Note:• This instrument has been built and
tested in accordance with VDE0411, part 100, and left themanufacturer’s works in perfectcondition concerning safetyregulations.
• This instrument has been testedunder reference conditionsconcerning electromagneticcompatibility according to EN 50081-2.
• Malfunctions of the instrument canbe remedied by means of the errorlist in chapter 7.2 without requiringintervention in the instrument itself.Alterations to the instrument arenot allowed and make anyguarantee claim invalid.
• After installing and connecting theinstrument and sensors the wholemeasuring system has to bechecked for function.
Instrument connection to direct voltage mains(24 V AC version)Smartec CLD 130 can be operated in thedirect voltage mains by inserting of a DC/ACconverter:DC/AC converterInput voltage 15 bis 32 V DCOutput voltage 24 V AC ± 2 %Output frequency 50 HzOutput power 4.5 VA
Order no. 50038935
KL1(A) KL2
0/4-20mA
PE
N L1
–+
PE
N L1PE
–+ AC
Power supply24 V to 240 V AC(see nameplate)
Fig. 4.1: Connection diagram for sensor with integrated transmitter
4.2 Sensor with integrated transmitter
4. Electrical connection Smartec CLD 130
10
4.3 Sensor with separate transmitter
KL3KL4
0/4-20mA
KL1(A) KL2
KL5
Measuring cable
Pt 100
Measuringtransmitter
blk rd bn gn
InductiveSensor
21 32 1 3 2 1
+ –
PE
PE N
L1PE N
L1
Pt 100
+ –
AC
gnbnwtwtrdblk
wt wt
κ
Ι
Power supply 24 V to 240 V AC(see nameplate)
Fig. 4.2: Connection diagram for sensor with separate transmitter
BE1LD130.CHP
Smartec CLD 130 4. Electrical connection
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5. Start-up
5.1 Power-up
Before switching on, ensure that allconnections have been correctly madeaccording to chapter 4.
5.2 Instrument settings
Normally no settings need to be made sincethe instrument has been preset at the factoryaccording to the order code.The settings concerned are as follows:
• Measuring range and decimal point ofdisplay,
• Signal output function (0 or 4 ... 20 mA),• Mains voltage coding,• Signal output variation and zero point
suppression, if ordered.
The settings are recorded on the inside of thecover (see figure 6.1). Any changes required should be madeaccording to chapter 6.
5.3 ATC setting
The automatic temperature compensation(ATC) factor can be set externally on thescaled ATC control (see chapter 6.2). If thefactor is not known refer to chapter 6.2.
5.4 Measuring mode
After applying the mains voltage, theinstrument must operate correctly and displaya temperature-compensated conductivityvalue in mS/cm or µS/cm.
5. Start-up Smartec CLD 130
12
6. OperationAll information in the following chaptersrelates to the items in figures 6.1 and 6.2.
6.1 Measuring range change-over
The instrument has four measuring rangeswhich can be changed over by means ofcoding switches S 101 and S 401.
The decimal point in the display must beadjusted with switch S 102 whenever themeasuring range is changed.
A corresponding measuring range plate canbe removed from the label in the cover andinserted into the pocket on the rear of thetransparent front panel. The measuring rangeplates are self-adhesive.
Measuring range Switch S 101 Switch S 102 Switch S 401
1 2 1 2 3 1 2
0 ... 2000 µS/cm – – – – – – –
0 ... 20 mS/cm – – – on – on –
0 - 200 mS/cm – – – – on on on
0 - 1000 mS/cm on on – – – on on
Measuringrange
change-overS 401
Terminal 4 Receiving coil
Terminal 3 temperature
sensorPt 100
Terminal 1 signal output
Control R110 end of range
Displayconnector
Terminal 5Transmitting coil
Decimal pointchange-overS102
Change-over signal output S101
Terminal 2Power supply
Control R107start of range
Fig. 6.1 Inside view of cover withmeasuring range plates
Fig. 6.2: Inside view SmartecCLD 130 - componentrywith terminals and plugs for measuring rangechange-over
Table 6.1: Switching of measuring range
BE2LD130.CHP
Smartec CLD 130 6. Operation
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• If the temperature coefficient is known it isset on the scaled ATC control on the frontpanel using a screwdriver.Typical temperature coefficients are:Water > 1 µS/cm: 2.1 % / °CLye (NaOH) approx. 2 %: 1.9 % / °CAcid (HNO3) up to 2 %: 1.6 % / °CSalty solutions: 2.2 % / °CMilk, beverages: 2.0 % / °C
• If the temperature coefficient is unknowndetermine the coefficient as follows:
Determination of actual temperaturecoefficient:The reference temperature of automatictemperature compensation is 25 °C. At thistemperature the setting of the ATC control hasno influence, this means the ATC is virtuallyswitched off.• Carry out a measurement in the test medium
at 25 °C• Note the display value• Heat the test medium to operating
temperature• Wait until the value of the measurement has
stabilized (adjustment time of temperaturesensor)
• Set the display to the value noted previously(at 25 °C) using the ATC control.
The actual temperature coefficient for themedium used is now indicated on the ATCscale.
Note:
The temperature sensor in thesensor requires approx. 10 minutesto adjust to the changedtemperature. Therefore wait untildisplay has stabilized when thetemperature of the test medium haschanged.
Concentration
Tem
per
atur
e co
effic
ient
Salts
Strong alkalis
Strong acids
Fig. 6.3: Concentration dependency of the temperature coefficient for several electrolyte solutions
6.2 ATC adjustment (automatical temperature compensation)
6. Operation Smartec CLD130
14
6.3 Signal output change-over
The signal output can be switched to 0 ... 20 mA or 4 ... 20 mA using switch S 101(see fig. 6.2).
6.4 Signal output assignment(MR versions 0/1/2/3)
The signal output can be spread continuously.Also the beginning of the signal output can becontinuously set within 0 ... 80 % of themeasuring range. This enables to extract virtually any windowfrom the measuring range and output it as acurrent signal.
Procedure:• Connect an ammeter 0 ... 20 mA to the
signal output.• Simulate the conductance at which the
signal output should be 0 or 4 mA(conductance simulation see chapter 7.3).
• Set 0 or 4 mA with control R 107 (see fig. 6.2).
• Simulate the conductance at which thesignal output should be 20 mA.
• Set 20 mA with control R 110 (see fig. 6.2).
Output range Switch S 101
3 4 5
0 ... 20 mA – on –
4 ... 20 mA on – on
Example:A signal output of 0 ... 20 mA correspondingto 100 ... 150 mS / cm is to be set in the range0 ... 200 mS / cm.This is possible following the aboveinstructions. The spread is factor 4 whichequals 25 % of the measuring range, the zeropoint suppression corresponding to 50 % ofthe measuring range.Then align the equipment at 0 mA for 50 Ohmand 20 mA for 33.3 Ohm (see chapter 7.3.)
20 mA
4 mA
20 80 100
Max. spread
Min.spread
Max.spread
Allowed simulation value end of measuring range
Selected measuring range (%)
Allowed simulation value start of measuring range
ControlR 110
ControlR 107
Sel
ecte
dsi
gna
l out
put
0 to
20
mA
or
0 to
20
mA
Fig. 6.4: Assignment of measuring range - current output
Table 6.2: Switching of output range
BE2LD130.CHP
Smartec CLD 130 6. Operation
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6.5 Remote switching of current output(MR versions 4/5/6)
With the option remote switching of currentoutput the following measuring ranges areusable:• 1000 mS / cm• 200 mS / cm• 20 mS / cm
Remote switching spreads current output andmeasuring range by factor 10, e.g. theoriginal indication range from• 0 or 4 ... 20 mA
corresponding to 0 ... 200 mS / cmchanges to• 0 or 4 ... 20 mA
corresponding to 0 ... 20 mS / cm.
Note:Zero-point adjustment of measuredvalue output is not possible byremote switching!
Control connectionremote switching
Assigned current output0 / 4 - 20 mA)
Selected measuringrange
Selected measuringrange10
Terminal 1 A signal output
Terminal 1 Bremote switching
Fig. 6.5: Inside view of SmartecCLD 130 - remote switching connection
Table 6.3: Measuring range assignment for remote switching
6. Operation Smartec CLD130
16
7. Maintenance andtroubleshooting
7.1 Maintenance
Measuring transmitter and sensor aremaintenance-free. No parts wear out.
7.2 Troubleshooting
Error Possible cause Remedy
No display
No signal output (display present)
Display unsteady, flickers,susceptible to faults
Display 1---
Display 000
No power supply
Output line interrupted
Grounded conductor not connected and / or shield ofoutput line not connected
Measuring range exceeded
Sensor does not immerse intothe medium
Check mains supply
Check line, terminals and connected analyzer
Check grounded conductor connection (should be short and have a large cross-section) use a shielded cable and connect shield to grounded conductor
Select the next higher range(see chapter 6.1)
Check flow of pipe system or level at tank installation as wellas installation position (air bubbles) Table 7.1: Troubleshooting, cause
and remedy
BE2LD130.CHP
Smartec CLD 130 7. Maintenance and troubleshooting
17
7.3 Instrument function test
Simulation values for simulating theconductance of the medium
For simulation purposes a wire is loopedthrough the sensor (looped through thecentral hole and out through one of the holesat the side).The simulation resistance is connected to thiswire loop, either as an individual resistance orusing a resistance decade. A large wire cross-section and low transitionresistances must be ensured when highconductance values, i.e. low resistance areinvolved (short connections, solder carefully!).For intermediate values, the simulationresistance is calculated according to thefollowing fomula:
R = 1
Conductance ⋅ k
Conductance in S/cm yields R in ohmConductance in mS/cm yields R in kohmConductance in µS/cm yields R in Mohmk (cell constant) = 5
Attention:
The displayed value will onlycorrespond with the siumulationvalue if
• the temperature is 25 °C or• a simulation resistance of
109.72 ohm is connected toterminal 3 instead of the Pt 100sensor.
• Precision resistances must beused for simulation, allowedtolerance 0.1 %.
• The transition resistances for wirecoil and soldering joint must beconsidered for the allowedtolerance value.
Conductance Simulation value
100 µS/cm 50 kOhm
200 µS/cm 25 kOhm
500 µS/cm 10 kOhm
1000 µS/cm 5 kOhm
2000 µS/cm 2.5 kOhm
5 mS/cm 1 kOhm
10 mS/cm 500 Ohm
20 mS/cm 250 Ohm
50 mS/cm 100 Ohm
100 mS/cm 50 Ohm
200 mS/cm 25 Ohm
500 mS/cm 10 Ohm
1000 mS/cm 5 Ohm
7. Maintenance and troubleshooting Smartec CLD130
18
8. Technical data
Measuring transmitterMeasuring ranges (switchable). . . . . . . . . . . . . . . . 0 ... 2000 µS/cm; 0 ... 20/200/1000 mS/cmATC range (standard) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 ... 3 %/K (–5 ... +105 °C)(option). . . . . . . . . . . . . . . . . . . . . . . . . 0.5 ... 3 %/K (–5 ... + 105 °C); 2.1 ... 6 %/K (0 ... +40 °C)ATC reference temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 °CMeasured value deviationDisplay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 % of meas. range final valueSignal output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 % of meas. range final valueSmallest measured value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 µS/cmPower supply AC . . . . . . . . . . . . . . . . 110/127/220 V, 50 ... 60 Hz; 100/200/240 V, 50 ... 60 Hz
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12/24/48 V, 50 ... 60 Hz; –10 % ... +15 %Power supply DC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . with seperate DC-AC converterPower consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . approx. 4.5 VA Signal output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 / 4 ... 20 mA, switchableLoad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . max. 500 OhmMeasured value output spread . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 % ... 100 % of MRMeasured value zero shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 % ... 80 % of MRDisplay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.5 mm LC display, 3 1/2 digits;Permissible operating temperature (with integrated transmitter) . . . . . . . . . . . . . –10 ... +50 °CPermissible operating temperature (with separate transmitter) . . . . . . . . . . . . . . –10 ... +60 °CPermissible storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25 ... +80 °CPermissible humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 % ... 95 % rel.Ingress protection (DIN 40050). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP 67Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 x 120 x 70 mm (HxWxD)Housing material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . coated aluminium,Terminal wire cross section . . . . . . . . . . . . . . . . . . . . . . . . . terminals 2.5 mm2; sensor 1.5 mm2
Housing ducts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 x Pg 9 glands; (replaceable by Pg 16)Sensor connection Pg 16 (only for separate sensor)
Sensor with integrated transmitterSensor material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PEEK (Polyether-ether-ketone)Operating temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 5 ... +110 °C (permanent temp.)Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pt 100, built-inPressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . max. 16 bar (20 °C)Shaft immersion length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 mmPipe cross section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . min. DN 65Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 kgMounting versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . dairy pipe fitting DN 50, DIN 11851
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . internal thread G 1 1/2"; 2" IDF flange
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2" clamp fitting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . round flange DN 40 / PN 10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . immersion sensor IP 68
Sensor with separate transmitterMounting versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . as above, add. immersion sensor IP 68Cable length and type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 m long, pre-assembledCable connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . permanently connected to sensor; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . with terminals in meas. instrument
Immersion sensor (integrated and separate measuring transmitter)Pipe material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PVC-CPipe length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 ... 2000 mmInstallation (compact version) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . round flange DN 50 / PN 10Installation (separate version) . . . . . . . . . round flange DN 50 / PN 10; dairy pipe fitting DN 65Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . max. 80 °CPressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . max. 6 bar (20 °C)
Immersion sensorIngress protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP 68Material of protection cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PVDFMaterial protection hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . siliconeLength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2000 mmInstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . flange DN 50 / PN 10 with strain relief
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . oval flange or mounting bracket
BE2LD130.CHP
Smartec CLD 130 8. Technical data
19
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