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TSI Incorporated 8550, Руководство по эксплуатации и обслуживанию

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Chapter 4 

24

Note

:  DIP switch 3 or 4 must be set to the “User Calibration” (ON) 

position or the Q-T

RAK

 will not go into calibration mode. Please 

refer to Appendix B: “Internal DIP Switch Settings.” 

3.  Compare the reading on the Q-T

RAK

 with the reading from the 

reference device. If they differ, use the arrow keys (

!"

) on the 

Q-T

RAK

 to adjust the Q-T

RAK

 display as needed so that the displayed 

measurement matches the measurement indicated by the reference 
device. Press the arrow key briefly to change the display 0.1 degree or 
0.1% at a time. Hold the arrow key down to change more quickly. 

Note:

  If the two readings are the same, there is no need to proceed with the 

calibration. Press the 

CO

2

, 

TEMP,

 or 

HUMIDITY

 key to terminate 

the calibration procedure. 

4. Press 

the 

SAMPLE

 key to take a measurement. The Q-T

RAK

 will 

display a 15-second count-down. When the count-down is completed, 
the Q-T

RAK

 will go back to survey mode. 

5.  Observe the displayed reading on the Q-T

RAK

, it should agree with the 

reference device within specifications (see Appendix A). If not, repeat 
the calibration. 

6.  If the displayed reading is accurate, the calibration is completed. 
 

Calibrating the CO Concentration Measurement (Model 8551 
only) 

TSI recommends calibrating the Q-T

RAK

 CO measurement monthly to help 

ensure accurate readings. The CO concentration measurement is affected by 
changes in temperature and atmospheric pressure. Normal day-to-day 
variations due to local weather conditions have little effect. However, 
changes in altitude can cause more significant errors. For best accuracy, 
calibrate the Q-T

RAK

 CO measurement for your local conditions or if 

conditions change. 
 
To calibrate the CO sensor, follow the procedure below. You will need a 
cylinder of pure air for the zero calibration and a cylinder of gas with a 
known concentration of CO for the span calibration, 35 ppm or 200 ppm is 
recommended. Contact your local TSI distributor for available CO 
calibration kits. 

Note

:  Calibration with CO gas should always be done in a well-ventilated 

area. 

 
If necessary, you can select between the factory CO calibration and a user 
calibration. Please refer to Appendix B: “Internal DIP Switch Settings.” 
 

Содержание 8550

Страница 1: ...Model 8550 8551 Q TRAK TM IAQ Monitor Operation and Service Manual 1980197 Revision K October 2002 I n d o o r A i r Q u a l i t y ...

Страница 2: ......

Страница 3: ...iew MN 55126 3996 USA U S Sales Customer Service 800 874 2811 651 490 2811 Fax 651 490 3824 E mail address answers tsi com Web site http www tsi com INTERNATIONAL Sales Customer Service 001 651 490 2811 Fax 001 651 490 3824 Model 8550 8551 Q TRAK IAQ Monitor Operation and Service Manual ...

Страница 4: ...and is subject to the LIMITATIONS stated herein NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR PARTICULAR PURPOSE OR MERCHANTABILITY IS MADE TO THE EXTENT PERMITTED BY LAW THE EXCLUSIVE REMEDY OF THE USER OR BUYER AND THE LIMIT OF SELLER S LIABILITY FOR ANY AND ALL LOSSES INJURIES OR DAMAGES CONCERNING THE GOODS INCLUDING CLAIMS BASED ON CONTRACT NEGLIGENCE TORT STRICT LIABILITY OR OTHERWISE ...

Страница 5: ...ually Setting the Real Time Clock 6 Using the Probe Stand 6 Connecting the Optional Model 8925 Portable Printer 6 3 OPERATION 7 Overview 7 Keypad Functions 7 ON OFF Key 7 CO2 Key 8 TEMP Key 8 HUMIDITY Key 9 CO Key Model 8551 Only 9 SAMPLE Key 9 TIME CONSTANT Key 9 Programming the Available Time Constants 10 STATISTICS Key 10 PRINT Key 11 SAMPLING MODE Key 11 Survey Mode 11 LOG Modes 12 CLEAR MEMOR...

Страница 6: ...21 Calibrating the CO2 Concentration Measurement 21 Calibrating the Temperature or Relative Humidity Measurement 23 Calibrating the CO Concentration Measurement Model 8551 only 24 Replacing the CO Sensor 26 Storage Precautions 27 5 TROUBLESHOOTING 29 APPENDIX A SPECIFICATIONS 31 APPENDIX B INTERNAL DIP SWITCH SETTINGS 35 ...

Страница 7: ...odel 1 Q TRAK IAQ Monitor 8550 8551 1 Carrying Case 800680 4 AA Alkaline Batteries 1206013 1 AC Adapter 115 V NEMA 5 230 V Eur CEE 7 16 230 V Great Britain 240 V Australian 2613033 2613078 800169 2613105 1 TRAKPRO Data Analysis Software 800700 1 CO2 Calibration Collar 800678 1 CO Calibration Adapter Model 8551 only 800696 1 CO Sensor Model 8551 only 800695 1 Probe Stand 800679 1 Computer Interface...

Страница 8: ...re Sensor 3 External Power Socket 9 Location of CO2 Sensor 4 Data Port RS 232 10 Probe Handle 5 Probe Mounting Clips 11 Battery Access Cover 6 Display Keypad Lockout 12 Wrist Strap Switch 13 Location of CO Sensor model 8551 only Figure 1 2 Q TRAK Accessories 1 AC Adapter 4 Computer Interface Cable 2 25 Pin to 9 Pin Adapter 5 Probe Stand 3 CO2 Calibration Collar 6 CO Calibration adapter Model 8551 ...

Страница 9: ...he AC adapter will not cause data to be lost This battery is designed to last for years TSI will install a new battery if necessary when the unit is returned to the factory for service Instrument Setup The Q TRAK comes with special software called TRAKPRO which is designed to provide you with maximum flexibility and power when using the Q TRAK The following sections describe how to install the sof...

Страница 10: ... can automatically find a Q TRAK that is attached to any COM port To set up the COM port do the following 1 Turn on the Q TRAK and start TRAKPRO 2 Select Communications from the Instrument Setup menu The following dialog is displayed 3 Select the following Serial Port Select the name of the serial port to which the logging device is connected COM1 COM2 COM3 or COM4 Baud Rate Select the baud rate f...

Страница 11: ...rectly set otherwise date and time stamping of recorded data and calibrations will not be correct There are two ways to set the time and date The first is to use the supplied TRAKPRO Data Analysis Software Programming the Date Time Using TrakPro To program the Q TRAK date and time 1 Make sure the Q TRAK is connected to the computer and turned on 2 Select Parameters then Clock from the Instrument S...

Страница 12: ... TRAK is supplied with a probe stand so that the probe can be located above a table surface while unattended To use it simply detach the probe from the Q TRAK mounting clips and slide it onto the stand Connecting the Optional Model 8925 Portable Printer To connect the Model 8925 printer to the Q TRAK locate the Printer Interface cable supplied with optional printer and connect the 9 pin end labele...

Страница 13: ...tion during the selected sampling mode To disable the beep refer to Appendix B Internal DIP Switch Settings ON OFF Key Use the ON OFF key to turn the Q TRAK on and off When the instrument is first turned on it goes through a preprogrammed power up sequence that includes an internal self check First all displayable items will appear for a few seconds If a problem is detected the display shows the m...

Страница 14: ...ion readings will be displayed in units of parts per million ppm Place the sensor in the location where you want to take the measurement The probe must be fully exposed because the CO2 sensor is located between the probe tip and the handle not at the tip C a u t i o n Do not hold the probe close to your breathing zone Humans exhale CO2 and this will influence the readings TEMP Key Press the TEMP k...

Страница 15: ...is stopped the Q TRAK automatically scrolls through statistics for the sample that just ended TIME CONSTANT Key Momentarily press and release the TIME CONSTANT key to view the current time constant To change the time constant press and hold the key down The available time constant choices will sequence on the display When the desired value is displayed immediately release the key The time constant...

Страница 16: ...d maximum readings as well as the elapsed time of the most recently sampled data You may view sample statistics while the sample is in progress however one time constant must have elapsed first If one of the LOG modes is active a test identification number is displayed also Press the STATISTICS key once to display the average reading again to display the minimum reading again to display the maximu...

Страница 17: ...nt LOG mode to print If you press and hold the PRINT key during the power up sequence and you have the optional Model 8925 printer connected a printout showing certain system information occurs SAMPLING MODE Key The SAMPLING MODE key allows you to select between the four sampling modes Survey LOG 1 LOG 2 and LOG 3 Each time you press the SAMPLING MODE key the Q TRAK will sequence to the next mode ...

Страница 18: ...y Turning the Q TRAK off will not erase data Recording another sample with one of the LOG modes without clearing memory first causes new data to be added to the existing data using a new test ID CLEAR MEMORY Key Use the CLEAR MEMORY key to erase all data The CLEAR MEMORY key will not respond unless the Q TRAK is first put into one of the three LOG modes by using the SAMPLING MODE key Note You shou...

Страница 19: ... average value measured over that 30 minute interval As shipped from the factory the available logging intervals for LOG 1 mode are 1 second 1 minute 5 minutes 15 minutes and 30 minutes Use the TRAKPRO data analysis software to alter these values Programming the Logging Intervals Using TRAKPRO To program the list of logging intervals available for LOG 1 mode 1 Make sure the Q TRAK is connected to ...

Страница 20: ... use the lockout switch You can lock the keypad move the switch to the 0 position after recording starts or you can put the switch into the lockout position prior to when recording starts If you select the second method you will be able to operate all functions normally until the SAMPLE key is pressed in one of the LOG modes At that time the keypad will automatically lock When the display and keyp...

Страница 21: ...ed Logging Modes dialog box Serial Number Displays the serial number of the logging instrument Number of tests logged Displays the number of tests currently logged and stored in the logging instrument Available Memory Displays the percent of available memory in the logging instrument ...

Страница 22: ...for LOG 2 and LOG 3 modes Test length Displays the test length for LOG 2 and LOG 3 modes Number of tests Displays the number of tests for LOG 2 and LOG 3 modes Time between tests Displays the time between tests for LOG 2 and LOG 3 modes Percent memory required Displays the percent of logger memory required to perform a LOG 2 or a LOG 3 mode sample To store the results of a LOG 2 or LOG 3 mode samp...

Страница 23: ...e sample Number of tests Enter the number of tests to perform Time between tests If you have specified more than one Number of tests enter the time between tests If you enter 0 or blank the next test is started immediately after the last test is complete While you are entering values for LOG 2 and LOG 3 modes the Percent Memory Required is dynamically updated to show the amount of logger memory re...

Страница 24: ...ay 3 23 98 The logging sample begins at 8 00 a m and continues for 8 hours The sample protocol for LOG 3 is set up to take unattended readings for two days beginning on 3 24 98 The logging sample begins at 8 00 a m and continues for 8 hours The instrument is off for 16 hours and then repeats the 8 hours test on the following day The following graphic gives the appearance of the dialog box displaye...

Страница 25: ...r details on making measurements using LOG 2 and LOG 3 modes After programming the Q TRAK with the TRAKPRO Data Analysis Software take the Q TRAK to the desired location and turn it on Put it into LOG 2 or LOG 3 mode whichever you programmed using the SAMPLING MODE key Press the SAMPLE key to initiate the program If you have set a start time and or date the display toggles between the next TEST ID...

Страница 26: ...Model 8551 2 each for CO2 CO temperature and humidity In addition each test labeled with a TEST ID number needs 100 bytes for storing statistics and setup information The formulas below ignore this 100 bytes to keep the calculations simpler Based on this information the Q TRAK is capable of storing approximately 21 000 data sets for Model 8550 and 15 750 for Model 8551 Note LOG 2 and LOG 3 modes c...

Страница 27: ... effect However changes in altitude can cause more significant errors For best accuracy calibrate the Q TRAK CO2 measurement for your local conditions or if conditions change To calibrate the CO2 sensor please follow the procedure below Brief instructions can also be found on the calibration collar itself You will need a cylinder of pure air or nitrogen for the zero calibration and a cylinder of g...

Страница 28: ...ode and then press and hold the CO2 key The display begins to count down from five to zero When the count reaches zero release the CO2 key immediately The words CALIBRATE ZERO should appear on the display If not try again Note DIP switch 2 must be set to the User Calibration ON position or the Q TRAK will not go into CO2 calibration mode Please refer to Appendix B Internal DIP Switch Settings 4 Pr...

Страница 29: ...ulator The calibration is now completed Calibrating the Temperature or Relative Humidity Measurement To perform a temperature or humidity calibration on the Q TRAK you will need a reference temperature or humidity device preferably one that is more accurate than the Q TRAK To obtain the best accuracy care must be taken so that both the Q TRAK probe and the reference device are able to sense the sa...

Страница 30: ...e reference device within specifications see Appendix A If not repeat the calibration 6 If the displayed reading is accurate the calibration is completed Calibrating the CO Concentration Measurement Model 8551 only TSI recommends calibrating the Q TRAK CO measurement monthly to help ensure accurate readings The CO concentration measurement is affected by changes in temperature and atmospheric pres...

Страница 31: ...onnect tubing from the cylinder to the inlet of the calibration adapter and turn the gas on 0 3 L min Make sure the cylinder is not empty 3 To put the Q TRAK into CO calibration mode first put the instrument into Survey mode and then press and hold the CO key The display begins to count down from five to zero When the count reaches zero release the CO key immediately The words CALIBRATE ZERO shoul...

Страница 32: ... the CO Sensor The electro chemical CO sensor will need to be replaced approximately once a year Conditions that may indicate a sensor needs to be replaced are 1 the sensor will not hold calibration or 2 the response is very unstable Caution must be taken when operating at very low or high temperatures Exposing the sensor to sub freezing temperatures can cause permanent damage to the sensor Exposi...

Страница 33: ...me 30 minute stabilization period is needed only after sensor replacement After the stabilization period calibrate the sensor by following the procedure above Storage Precautions When storing the Q TRAK for more than 30 days you should remove the batteries This prevents damage due to battery leakage This instrument must be stored in a location where the temperature remains between 20 and 60 C 4 an...

Страница 34: ...Chapter 4 28 ...

Страница 35: ...ter Low AC line Voltage Dirty battery contacts Replace batteries or use AC Adapter Replace with the correct AC Adapter Correct the AC line voltage or use batteries Clean the battery contacts Display reads MEMORY 0 Memory is full Download memory to a PC if desired then clear memory Humidity reading near zero or not believable Probe exposed to intense light Shade the probe while taking samples Canno...

Страница 36: ... service required Press any key to bypass SERVICE and 4 displayed CO2 sensor malfunction Factory service required Press any key to bypass SERVICE and 5 displayed Humidity sensor malfunction Factory service required Press any key to bypass SERVICE and 6 displayed Low batteries are the most common cause of this error If error persists infrared light source malfunction may have occurred Replace batte...

Страница 37: ...ture Sensor type Thermistor Range 0 to 50 C 32 to 122 F Accuracy 0 6 C 1 0 F Resolution 0 1 C 0 1 F Response time 30 seconds 90 of final value air velocity at 2 m s Display units C or F user selectable Humidity Sensor type Thin film capacitive Range 5 to 95 rh Accuracy 3 rh includes 1 hysteresis Resolution 0 1 rh Response time 20 seconds for 63 of final value CO Model 8551 only Sensor type Electro...

Страница 38: ...Cd or AC adapter 6 VDC nominal 300 ma Q TRAK mates with 5 5 mm OD x 2 1 mm ID plug center pin positive Approx battery Life 13 5 hours Alkaline 4 75 hours NiCd Physical External dimensions 107 mm x 183 mm x 38 mm 4 2 in x 7 2 in x 1 5 in Probe length Model 8551 17 8 cm 7 0 in Model 8550 14 7 cm 5 8 in Probe diameter 1 9 cm 0 75 in Weight 0 59 kg 1 3 pounds with batteries Display 4 digit LCD 15 mm 0...

Страница 39: ...Specifications 33 Calibration Gas CO2 zero Nitrogen or pure air 10 ppm CO2 CO2 span 1000 5000 ppm CO2 CO zero Pure air 0 5 ppm CO CO span 35 500 ppm CO Gas flow rate 0 3 to 0 5 L min ...

Страница 40: ...Appendix A 34 ...

Страница 41: ... changing DIP switch settings Switch OFF ON 1 Degrees Celsius C Degrees Fahrenheit F 2 Factory CO2 Cal User CO2 Cal 3 Factory Temp Cal User Temp Cal 4 Factory Humidity Cal User Humidity Cal 5 Beep Disabled Beep Enabled 6 Reserved Reserved 7 Factory CO Cal User CO Cal 8 Reserved Reserved As shipped the user calibration is identical to the factory calibration Factory default settings are indicated w...

Страница 42: ...Appendix B 36 Figure B 1 DIP Switch Location DIP SWITCH ON OFF 1 8 ...

Страница 43: ...TSI Incorporated 500 Cardigan Road Shoreview MN 55126 U S A Web www tsi com ...

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