IAQ Instruments

© 2007, TSI Incorporated

IAQ Instruments

“Good” and “Better” Offering


Plan – IAQ Products

• DETAILED Training of Products!!!– 1.0 Technology – 2.0 Measurements, Calculations, Specifications– 3.0 Operation– 4.0 Features and Benefits– 5.0 Calibration– 6.0 Applications– 7.0 Pricing and Discounts– 8.0 Competition and Positioning


1.0 Technology

• IAQ Products– Technology – Measurements

• CO2

• Temp• Humidity• CO


CO2 Measurement


CO2 Measurement

• Non-Dispersive Infrared (NDIR)

• CO2 molecules absorb light at 4.26 µm

• Light source on one end of sensor• IR detector on the other end• Filter eliminates all light except 4.26 µm • Intensity of light reaching detector is related to

CO2 concentration

• Flashing light source


CO2 Measurement

• TSI/Airflow instruments measurement uses a dual detector– One at 4.26 µm for CO2

– On at a wavelength where no known gas absorbs light

– The actual measurement looks at the difference– This helps with stability as the light source

degrades over time


Temperature

• Separate sensor from the temp compensation sensor

• Why? Because the heat coming off the velocity sensor impacted the temperature reading

• Platinum RTD

RPlatinum

T


Temperature

• Where is it located?• Holes allow in air• Response time

somewhat slow• Probe structural issue

Temperature sensor


Thermocouples

• On Multi-Function instrument, there are 2 slots for Type K thermocouples

• Available from TSI– Air probe– Surface probe

• Any Type K thermocouple will work• Much faster response!


Thermocouples

• How they work• Slightly dissimilar materials

are connected to together• As temp changes, the

voltage changes• Voltage is related

to temp and is

measured in device

Graphic from www.picotech.com


Thermocouples

• Standard plugs• Fast response time – small thermal mass• Some are inside enclosures• Type K (Chromel / Alumel)

has a range of -200 °C to +1200 °C range• Good for many applications


Humidity Measurement

• Capacitive humidity sensor• As humidity changes, it changes the capacity of

the sensor• This is monitored by electronics • Raw signal is processed in instrument to get a

reading of humidity• TSI applies humidity sensors in products – good

understanding of calibration


Humidity Measurement

• Where is the humidity

sensor located?

Humidity Sensor


CO Measurement

• Electro-Chemical sensor• Substrate on a sensor• Changes electrical properties when CO is in

contact • Degrades over time• With TSI, CO sensor is field replaceable


CO Measurement

• Location

CO Sensor


Technology and Measurements

• Value added by TSI– Application of sensors– Adaptation for other conditions

• Temperature (i.e. compensation in velocity)• Humidity• CO2 and CO

– Calibration

– Calculations – Data management


2.0 Measurements

• Measurements and calculations• We’ll go through each product in the range


Model 7515 IAQ-Calc

• Integrated probe

• CO2 only - - No data logging– Range: 0-5000 ppm – Accuracy: ± 3% of reading

or ± 50 ppm, whichever is greater – Resolution: 1 ppm

• Operating conditions– Temperature (electronics): 40°F to 113°F (5°C to 45°C)– Temperature (storage): -4°F to 140°F (-20°C to 60°C)– Humidity: 80% RH, non-condensing


Model 7535 IAQ-Calc

• Integrated probe• CO2 only, same as 7515 but with Manual, Auto Save,

and continuous logging– Range: 0-5000 ppm – Accuracy: ± 3% of reading or ± 50 ppm, whichever is

greater – ± (3% of reading + 50 ppm)– Resolution: 1 ppm

• Operating conditions– Temperature (electronics): 40°F to 113°F (5°C to 45°C)– Temperature (storage): -4°F to 140°F (-20°C to 60°C)– Humidity: 80% RH, non-condensing


Model 7525 IAQ-Calc

• CO2 – Range: 0-5000 ppm – Accuracy: ± 3% of reading or ± 50

ppm, whichever is greater – Resolution: 1 ppm

• Temperature– Range: 32°F to 140°F (0°C to 60°C) – Accuracy: ± 1°F (0,6°C) – Resolution: 0.1°F (0,1°C)– Response time: 30 seconds

• Humidity – Range: 0 to 95% RH– Accuracy: ± 3% RH – Resolution: 0.1% (0,1%)


Model 7525 IAQ-Calc

• Also calculates: – Wet bulb temperature– Dew point temperature – % Outside Air

• Operating conditions– Same as 7535– Temp (probe): 14°F to

140°F (-10°C to 60°C)– Humidity issue


Model 7525 IAQ-Calc

• Power– Batteries included– AC adapter (optional)

• Actual / Standard calculations– User input temperature and barometric pressure

• Data logging– Manual, Auto Save, Continuous – Key, Continuous-Time

• Downloading Data– LogDat2 software


Model 7545 IAQ-Calc

• CO2 – Range: 0-5000 ppm – Accuracy: ± 3% of reading or ± 50

ppm, whichever is greater – Resolution: 1 ppm

• CO specs– Range: 0 to 500 ppm– Accuracy: ± 3% of reading or ± 3

ppm, whichever is greater– Resolution: 0.1 ppm (0,1 ppm)


Model 7545 IAQ-Calc

• Temperature– Range: 32°F to 140°F (0°C to

60°C) – Accuracy: ± 1°F (0,6°C) – Resolution: 0.1°F (0,1°C)– Response time: 30 seconds



Model 7545 IAQ-Calc

• Also calculates: – Wet bulb temperature– Dew point temperature – % Outside Air

• Operating conditions– Same as 7525– Temp (probe): 14°F to 140°F (-10°C to 60°C)


9555-X

• 9555-X is the multi-function instrument sold alone with no probes and NO pressure!

• Add a Model 980 probe– CO2, Temperature, Humidity

• Add a Model 982 probe– CO2, Temperature, Humidity, CO


9555-X with 982 Probe

• CO Specs– Range: 0 to 500 ppm– Accuracy: ± 3% of reading ±3 ppm, whichever is

greater– Resolution: 0,1 ppm

• Similar features as the 7545 plus the ability to upgrade with more probes in the future


Model 7415 TH-Calc

• Temperature– Range: 32°F to 140°F (0°C to 60°C) – Accuracy: ± 1°F (0,6°C) – Resolution: 0.1°F (0,1°C)– Response time: 30 seconds



Model 7415 TH-Calc

• Operating conditions– Temperature (electronics): 40°F to 113°F (5°C to 45°C) – Temperature (storage): -4°F to 140°F (-20°C to 60°C)– Temperature (probe): 14°F to 140°F (-10°C to 60°C)– Humidity: 80% RH, non-condensing

• Calculates Wet Bulb Temperature• NO data logging• Basic keypad


Model 7425 TH-Calc

• Same specs as 7415• Additional Calculations

– Dew Point Temperature– % Outside Air

• Data Logging– Manual, Auto Save


Resources

• Specification Sheets– In your product manual, you’ll find product

specification sheets for each range

• Competitive Comparison Charts


Summary of Measurements and Calculations

7515 7525 7535 7545 9555-X w/982 7415 7425CO2 X X X X XTemperature X X X X XHumidity X X X X XWet Bulb X X X X XDew Point X X X XCO X X% Outside Air X X X XPlug and Play Probes X

Manual Manual Manual Manual ManualAuto Save Auto Save Auto Save Auto Save Auto Save

Cont - Key Cont - KeyData Logging Cont - Temp Cont - TempLogDat2 Software X X X X


3.0 Operation

• Similar operation throughout product range• Developed Multi-Function instrument first • Applied functions as needed to instruments

lower in the product range


Operation - Display

Battery Indicator

Primary ParameterActivity Area

Soft Key Indicators

Additional Messages

Other measurements


Operation - Keys

• On-Off • ESC• Large Enter Key

– Select in menu– Lock a reading

• Up – Down Arrows– Navigate in menus

• 3 Soft Keys– Initiates the message on the display


Operation – In Use

• Display updates parameters every second

• Many applications for IAQ are looking for issues that happen over time…..so they will use and IAQ meter to record info over time….


Model 7515 IAQ-Calc

• By following the instructions on the soft keys, a user can take a sample reading

• The user pushes a button to start a test• Then, they push the button to stop the test• Then, they can view basic statistics• Details in the manual…..


Main Menu

• Display Setup– Programs instrument for what to display– Multi-function instrument (large display)

• 1 Primary parameter• Up to 4 secondary parameters – perfect for IAQ meter

– “Better” instruments (small display)• 1 Primary parameter• Up to 2 secondary parameters – perfect for IAQ meter

– Chose among “On”, “Off”, “Primary”


Main Menu

• Settings Menu– This is where you configure how the instrument

should work– Language, units, time, backlight, and more


Main Menu

• Actual/Standard Setup– This is where you choose whether to measure

actual air or standard air– Barometric pressure– Temperature

• Data Logging– We will look at this in more detail later


Main Menu

• Zero CO– This is also a quick one button operation to zero

CO if an IAQ probe is attached


Main Menu

• Applications– This menu allows users to take special readings or

calculations – We’ll review this later in 5.0 Applications– Applications include

• Draft• Heatflow• Turbulence• % Outside Air


Main Menu

• Calibration– Walks the user through field calibration options

• Discover Printer– This menu identifies and partners the instrument

with a Bluetooth portable printer


Operation – Notes


Operation – Notes


Data Logging

• Measurements– User must define what measurements they want to

save into memory– Either ON or OFF


Data Logging

• Types of Data Logging– Manual

• Push ENTER to hold a reading• Push soft key to save in memory

– Auto Save• Push ENTER and after a predetermined time, values are

automatically saved in memory• “SAMPLE TIME” is set in the instrument


Data Logging

• Types of Data Logging– Continuous – Key – Important for IAQ applications

• Push ENTER to start a continuous logging test• Push ENTER to stop the test

– Continuous - Time - Important for IAQ applications• Push ENTER to start a continuous logging test• After a pre-determined time, the test stops• “TEST LENGTH” set in instrument

– “LOG INTERVAL” set in instrument


Data Logging

• Test IDs– Identifies a group of data– 100 Test IDs

• View Data on screen• Delete Data• Download and print

– Data recorded with time and date stamp


Data Logging

• % Memory menu– Available memory depends on what has already

been loggedMulti-Function Instruments

Samples Parameters84053 172045 263040 356035 450432 545847 642026 738793 836022 933621 10

Integrated Instruments

Samples Parameters40362 134595 230271 326907 424217 522015 620180 718628 817297 916144 10


Data Logging

• Let’s take a look at the screen.


Downloading

• Instrument looks like an external drive • USB connection to computer• Through LogDat2, easy to download data

straight into Excel or to a file• Let’s try it……….


4.0 Features and Benefits

• Features – Ergonomic probe handle

– Multiple measurements in one probe

• Benefits– Easy to hold and operate;

less likely to drop

– No need to swap out probes for IAQ investigations


Case Features

• Features– Ergonomic design

• Benefits– Feels good in users’

hands– Less likely to drop


Case

• Feature– Integral probe attachment

• Benefit– One-hand can carry

Instrument• Carry through buildings• Up ladders• Setting up in conference room

– Not with TESTO


Displays

• Features– Large, easy to read

displays

– Backlight display

– Multi-parameter display

• Benefits– Easy to operate and

understand – clear measurements

– Make measurements in dimly light areas

– View multiple measurements at the same time


User Interface

• Features– Configure instrument for

each specific test

– Large ENTER key

– Intuitive menu structure

• Benefits– Same instrument can be

used for many different applications – flexible

– “Push a button…..get a number”

– Easy for users to navigate to set up their tests – TESTO IS DIFFICULT


Local Interest

• Features– Local languages

– Calibration Certificates in local languages

• Benefits– Easier for users to

operate in native language – more apt to buy and use

– Easier for local users to generate and present reports


Data Logging

• Features– Data logging

– Easy to set up what to data log

– Different types of data logging

• Benefits– Record tests with time

and date stamp– If its easy, users will be

more apt to use feature, saves them time

– Manual or continuous, depending on application, flexibility


Other Features

• Features– Universal AC Adapter

– USB downloading method

• Benefits– Easy to order and use

– Common, easy to end-users to use and understand, fast


5.0 Calibration

• For Multi-Function instruments, calibration certificate is supplied with each probe

• For integral instruments, a calibration certificate is supplied with each instrument

• Calibration certificates come with all products, FREE of charge - - Key point of differentiation


Field Calibration Important

• Why? Because NDIR and electro-chemical sensors drift and it helps if they are adjusted before starting an investigation

• Zero and span• Instrument walks the user through this process• User needs tanks of gas and calibration collar


Calibration Certificate

• TSI recommends annual FACTORY calibration


Calibration Issues

• Many of the parameters can be field calibrated– In the Calibration menu in the instruments– Step-by-step instructions how to do it…..take a look– No “TSI” authorized Calibration Certificate– Important for some measurements like pressure

and CO2


6.0 Applications

• Building survey


Thermal Comfort


Ventilation Over Time

• CO2 used as a

surrogate for ventilation


% Outside Air

C H

CC

OA(OUTSIDE AIR)

OA DAMPER FILTERCHILLED WATER COIL

HOT WATER COIL

SA(SUPPLY AIR)

RA (RETURN AIR)

SUPPLY AIR FANRA DAMPER

XR

XS

DAMPER MOTOR


Applications - Thermocouples

• Surface temperatures of heaters• Surface temperatures of pipes• Temperature gradients

– Across the room– 2 thermocouples

• Fast temperature changes• Temperature of heated air


% Outside Air Application

• In 7525, 7545, 7565, 7424– Application Note AF-138 (let’s take a look)– To calculate the %OA, use the following equation for CO2

or temperature:

%OA = (XR-XS)/(XR-XO) X 100%

Where:

XR = Return air CO2 concentration OR temperature

XS = Supply air CO2 concentration OR temperature

XO = Outdoor air CO2 concentration OR temperature



• Inside instrument, there are easy instructions to follow to get each measurement needed and then to automatically calculate %Outside Air

• Let’s take a look……….



• In the US, there are standards for fresh air to be brought into certain indoor spaces

• For example, an office needs amount of outdoor, or fresh, air…

• This is called Air Changes Per Hour (ACPH) of fresh air and is specified by standards

• With these numbers, and Airflow Instruments, we can check to see if we have adequate ventilation



• Example:– Recommended ACPH of fresh air to office: 5

– Size of room = 10 m X 10 m X 3 m = 300 m3

– Flow coming into room – measured at 3600 m3/hr– Calculating total ACPH =

• 3600 m3/hr / 300 m3 = 12 ACPH

– % Outside Air from 7545 IAQ-Calc = 40% • 12 ACPH X 40% = 4.8 ACPH of fresh air


Applications

• Other applications?


7.0 Pricing and Discounts

• Basic Products: 7515, 7535 and 7415• Includes:

– Instrument– Hard plastic carrying case– Calibration certificate– Manual– Batteries


7515, 7535 and 7415

• List Price = End User Price

• 7515 IAQ-Calc: €425 £290• 7535 IAQ-Calc: €695 £495• 7415 TH-Calc: €395 £290


7525, 7545 and 7425

• Includes:– Instrument with attached probe– Hard plastic carrying case– Calibration certificate– Manual– Batteries– LogDat2 Downloading software– USB cable

– CO/CO2 calibration collar (7525, 7545)


7525, 7545 and 7425

• List Price

• 7525 IAQ-Calc: €1.395 £975• 7545 IAQ-Calc: €1.595 £1.145

• 7425 TH-Calc: €645 £465


9555-X

• Includes– Instrument– Hard plastic carrying case– Manual– Batteries– AC Adapter– LogDat2 Downloading software– TrakPro Data Analysis software– USB cable


9555-X w/Probes

• This is just a multi-function instrument• List Price

• 9555-X: €695 £505• Model 980 Probe: €1.225 £885

– CO2, Temperature, Humidity

• Model 982 Probe: €1.455 £1.050– CO2, Temperature, Humidity, CO


Accessories

• Universal Power Supply – P/N 801761• List Price: €36 £25

• Model 792 Probe €95 £65 – Surface Type K Thermocouple

• Model 794 Probe €95 £65 – Air - Type K Thermocouple


Accessories

• Wireless Bluetooth Portable Printer Model 8934

• List Price: €295 £210


Discount

• See Discount schedules

• You can earn more discounts – How??

• Portable printers and other accessories are different• Let’s look at Discount Schedule Sheet


8.0 Competition and Positioning

• Comprehensive competitive comparison charts in your product binder– let’s look at them…..

• Let’s focus on key positioning and points of differentiation– Accuracy. Reliability. Consistency.

• Price and feature comparison


Accuracy!

• TSI is known for accurate ventilation instruments• TSI IAQ meters are the STANDARD in the

market• Utilize a dual NDIR sensor for stability


Calibration Certificates

• They are standard with all products • Why? – They are needed for many applications

where reports are generated– For IAQ investigations, users need to generate

reports. In those reports, they need to include Calibration Certificates to validate their tests!!!


Reliability.

• Rugged probe• Calculations made in instrument• Easy to use interface• Large display• Data logging and downloading – for customer

reports• Compare ease of use with competition


Consistency.

• Quality products• Fast delivery• Fast service• Brand recognition


Thank You!


Documents

IAQ Instruments