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Related Manuals for TSI Instruments IAQ50
Summary of Contents for TSI Instruments IAQ50
- Page 1 OWNER’S MANUAL Indoor Air Quality Meter Model IAQ50...
- Page 2 LIMITATION OF WARRANTY AND LIABILITY Seller warrants the goods sold hereunder, under normal use and service as described in the operator's manual, shall be free from defects in workmanship and material for twenty-four (24) months, or the length of time specified in the operator's manual, from the date of shipment to the customer.
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Page 3: Table Of Contents
LIMITATION OF WARRANTY AND LIABILITY... ii SECTION 1 General Description...5 SECTION 2 Safety...6 SECTION 3 Setting-Up ...7 Supplying Power to the Model IAQ50 ...7 Installing the Batteries...7 Using the Optional AC Adapter...7 Start up Sequence for the Model IAQ50...8 Battery Percentage...8 Log Percentage...8... - Page 4 SECTION 5 Maintenance ... 26 Probe Tip... 26 Cases ... 27 Storage... 27 SECTION 6 Service and Calibration ... 27 Factory Calibration... 28 Field Calibration ... 29 Field Calibration Procedure ... 29 Temperature and Humidity Calibrations Adjustment Procedure... 32 SECTION 7 Troubleshooting ... 34 SECTION 8 DIP Switch Settings...
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Page 5: Section 1 General Description
The instrument will deter- mine statistics and recall individual data points for up to 255 test IDs. The Model IAQ50 will retain data even after it is turned off. The IAQ50 ships in a soft-sided carrying case that holds the meter and probe, a probe stand, and calibration collar. -
Page 6: Section 2 Safety
SECTION 2 Safety When using the IAQ50 to check for CO temperature or humidity values, make certain that you can safely raise and hold the instrument while making measure- ments. Be especially careful when working on a ladder. Observe all necessary precautions so that... -
Page 7: Section 3 Setting-Up
SECTION 3 Setting-Up Supplying Power to the Model IAQ50 The Model IAQ50 can be powered in one of two ways: four AA-size batteries or an optional AC adapter. Installing the Batteries Insert four AA batteries as indicated by the diagram located on the inside of the battery compartment. -
Page 8: Start Up Sequence For The Model Iaq50
Start up Sequence for the Model IAQ50 When the instrument is turned on, all segments of the display will light up and then the meter goes through a start-up sequence. Battery Percentage This shows the remaining amount of battery power. -
Page 9: Barometric Pressure
To set the time and date, press and hold either 5 or 6 key during the power-up sequence when the time is displayed. Release the keys when the Model IAQ50 beeps twice. You will have an opportu- nity to view and/or change the minutes (min), hours, year, month and date in sequence. -
Page 10: Using The Sensing Probe
Detailed Operation Keypad Functions When pressing the keys on the front panel, the Model IAQ50 will beep to confirm the function. If you press a key and it does not beep, the instrument does not allow that function during the selected mode. -
Page 11: On/Off Key
(when all displayable items are shown). The Model IAQ50 begins by displaying percentage of battery life remaining (accurate for alkaline batteries only), the percentage of memory available, baud rate, time (HH.MM) and entered baro-... -
Page 12: Temp Key
rameter, press the CO the probe in the location you want to measure gas concentration. TEMP Key The meter will always display tempera- ture readings from the permanent sensor on the lower line of the display. When you wish to take an external tempera- ture reading using an RTD probe, plug any three-pronged RTD probe into the right side. -
Page 13: Humid Key
HUMID Key Press HUMID to toggle between %RH, dew point or wet bulb, (as displayed on the top line of the display). Dew point and wet bulb are displayed in the same units chosen for temperature measure- ment. READ/ENTER Key This is a dual function key. -
Page 14: Time Log Key
TIME LOG Key To set up the instrument so it automati- cally takes measurements, use the TIME LOG key. This allows you to program a logging time and interval, and the meter will read and store measurements that can be viewed later. Press the TIME LOG key. - Page 15 sen, the instrument will sample continu- ously until it is either stopped manually, runs out of memory, or the batteries run out. If a number between 1 and 9999 is chosen, the instrument will take that number of samples and then stop stor- ing readings.
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Page 16: Next Test Key
ID. The Model IAQ50 will automatically increment the test ID number under the following conditions: turning off the Model IAQ50 (if • there is stored data) setting any data logging sample •... - Page 17 Using CO %OA= (C –C where %OA = Percentage of outside Using Temperature: %OA= (T where %OA = Percentage of outside ) / (C –C ) x 100% = Concentration CO return air = Concentration CO supply air = Concentration CO outside air ) / (T ) x 100%...
- Page 18 Temperature readings should be taken at the Air Handling Unit only, since there may be components in the system that change the temperature that are not evident upon initial examination. Calculating Outside Air measurements by taking readings at the supply air to a room will not give the correct answer.
- Page 19 Details on the procedure are as follows: Press the %OA key once to begin. To choose a measurement mode (OA, SUPPLY, RETURN), use the 5 or 6 keys. You may press TEMP or CO at any time to move from calculating %OA from TEMP to CO or from CO to TEMP.
- Page 20 If the measurement is not acceptable or the value is not yet stable, wait a minute and then take another reading to over- write the value on the top line. Once the top line value is acceptable, press the 5 or 6 keys to move the icon to either Supply or %OA, whichever reading you are prepared to make next.
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Page 21: Bp Key
Note: “Err” will display if not enough information is available or a negative % value is calculated. To make changes to one of the other three readings without putting these values to memory yet, press the 5 or 6 keys to review the values and press READ/ENTER to overwrite the value. -
Page 22: Recall Key
to change the value. Press ENTER to return to normal measuring mode. RECALL Key The RECALL key lets you review data from a particular test ID. Press the RECALL key. The most current test ID number will show on the display. Press ENTER to review measurements in this test ID, or use the 5 or 6 keys to choose another test ID to review. -
Page 23: Arrow Keys (56)
Model IAQ50 functions. They are also used while in field calibration mode. On the Model IAQ50, pressing either 5 or 6 key on the start-up sequence while baud rate, time or barometric pressure is... -
Page 24: Del Key
Use the 5 or 6 key to adjust the value, and press ENTER to accept. DEL Key The Model IAQ50 lets you clear the last sample stored or the entire contents of memory. To clear only the last sample, hold the DEL key and the display will begin a countdown from 3 to 0. -
Page 25: Printing Data Using The Optional Microprinter
Note: In order to print, the baud rate on the Model IAQ50 must be set to the same as the printer. The default is 1200. The data will print in a format such as 12,345.67. -
Page 26: Section 5 Maintenance
Periodically inspect the probe tip to ensure that it is clean. Dust and oil deposits on the sensor may affect the response time of the Model IAQ50. To remove dust, blow it off with a gentle stream of air. Caution:... -
Page 27: Cases
Never submerge the Model IAQ50 in any liquid. Storage When storing the Model IAQ50 for more than a month, TSI recommends removing the batteries. This prevents possible damage due to battery leakage. -
Page 28: Factory Calibration
calibration, Return Material Authorization (RMA) number, and shipping instructions. Please have the following information available when you call: • Owner’s name, address, and phone number • Billing address, if different and applicable • Instrument name and model • Serial number •... -
Page 29: Field Calibration
This will expedite processing of your instrument when we receive it. Field Calibration Field Calibration Procedure 1. Turn the IAQ50 on and set the Baro- metric Pressure to the current Baro- metric Pressure. Be sure to use “station pressure” which may be available at the local airport. - Page 30 3. Turn the IAQ50 on. It will flash “CAL” on the top row and beep intermit- tently. 4. Press and hold the CO the calibration procedure. The display will begin a countdown from 5 to 0. Release the key when the display reads 0.
- Page 31 If not, repeat the calibration. 13. If the displayed reading is accurate, remove the regulator and tubing. 14. Turn the IAQ50 off and flip DIP switch #7 to OFF (normal mode). The calibra- tion is now complete.
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Page 32: Temperature And Humidity Calibrations
The procedure for field adjustment is as follows: Turn off the instrument, flip DIP switch #7 to “ON.” Turn the Model IAQ50 on again. On the Model IAQ50, press and hold the parameter key you want to adjust to enter calibration mode. - Page 33 When finished, turn the instrument off and flip DIP switch #7 to “off.” On the Model IAQ50, press and hold the TEMP or HUMIDITY key to enter the calibration mode for that parameter. To enter the calibration mode for the RTD, make sure the RTD is plugged in.
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Page 34: Section 7 Troubleshooting
Troubleshooting Table 7-1 lists the symptoms, possible causes, and recommended solutions for common problems encountered with the Model IAQ50. If your symptom is not listed, or if none of the corrective actions solve your problem, please contact TSI Instruments Ltd. - Page 35 Symptom Causes Display Wrong AC reads "LO" adapter Low AC line voltage Dirty battery contacts Display The Model reads IAQ50 has “CAL” detected an internal fault Display A parameter reads value is too “OVER” high. RTD became unplugged while reading RTD tempera- ture.
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Page 36: Section 8 Dip Switch Settings
Possible Symptom Causes Display You are trying reads to enter more “LOG readings than FULL” memory can handle Display Low lithium flashes battery power “Libatt” DIP Switch Settings To access the DIP switches, remove the batteries from the battery compartment. On the inside of the battery compartment, there is a window with eight DIP switches. - Page 37 Table 8-1: DIP Switch Settings Switch Must be OFF Not assigned °F Buzzer OFF Normal Mode American Date Format and 12,345.67 The ON position is away from the batteries and OFF is towards the batteries. Always leave DIP switch #1–4 in the OFF position. ------- ------- °C...
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Page 38: Specifications
Specifications Specifications are subject to change without notice. Range: Accuracy: Resolution: Sensor Type Temperature: Range: Accuracy: Resolution: Secondary Temperature Probe (optional): Range: Accuracy: Resolution: Sensor Type: Relative Humidity: Range: Accuracy Resolution: Sensor Type: Dew Point: Range: Resolution : 0 to 5000 ppm ±3% of reading at 25 ±... - Page 39 Wet Bulb: Range: Resolution: % Outside Air: Range: Resolution: Logging Capability: Intervals: Meter Dimensions: Weight (with batteries): Probe length: Probe tip diameter: Display: Operating Range: Storage Range: Power Requirements: Printer Interface Type: 1 Add ±0.36%/ deg C away from calibration temperature 2 At 25°C.
- Page 40 TSI Instruments Ltd. Lancaster Road Cressex Business Park High Wycombe Buckinghamshire HP12 3QP England E-mail: info@airflowinstruments.co.uk Web: www.airflowinstruments.co.uk October 2005 Printed in USA Part No. 1980533, Rev. A Tel: +44 (0) 149 4 459200 Fax: +44 (0) 149 4 459700 Copyright ©...
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