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User Manual
GSM400
CO2 Meter with RH% and Temperature
Introduction
Congratulations on your purchase of the Triplett GSM400 CO2 Meter with RH% and Temperature.
This meter measures CO
humidity and is an ideal instrument for indoor air quality (IAQ) diagnosis.
Description
METER DESCRIPTION
1.
Temperature and Humidity Sensor
2.
CO2 Sensor (Rear)
3.
LCD Display
4.
AC Adaptor Connector
5.
RS-232 Port
6.
Keypad
7.
Battery Compartment (Rear)
(Carbon Dioxide) levels, air temp., dew point, wet bulb temperature and
2
5 Commonwealth Ave
Woburn, MA 01801
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
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Summary of Contents for Triplett GSM400
- Page 1 GSM400 CO2 Meter with RH% and Temperature Introduction Congratulations on your purchase of the Triplett GSM400 CO2 Meter with RH% and Temperature. This meter measures CO (Carbon Dioxide) levels, air temp., dew point, wet bulb temperature and humidity and is an ideal instrument for indoor air quality (IAQ) diagnosis.
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Page 2: Lcd Display
LCD DISPLAY CO2 concentration in ppm Relative Humidity in % Air Temperature, Dew Point or Wet Bulb Temperature SYMBOLS Time weighted average (8 hours) STEL Short-term exposure limit (15 minutes weighted average) HOLD Freezes current reading on display MIN/MAX Minimum/Maximum readings Low battery indicator Dew point temperature Air temperature... - Page 3 As well, the TWA mode will display a weighted average of readings prior to 8 hours of operation. The GSM400 takes at least 5 minutes to calculate STEL and TWA. The display shows “----” during the first 5 minutes from power on.
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Page 4: Auto Power Off
The STEL and TWA values will keep updating every 5 minutes. ALARM The meter features an audible alarm to give warnings when CO concentration exceeds the set limit. It emits beeps (Abt.80dB) when CO level goes over the set value and stops when any key (except ) is pressed or the readings fall below the set value. - Page 5 RH CALIBRATION The meter is calibrated to a standard 33% and 75% salt solution bottle. CAUTION: Do not calibrate the humidity without the default calibration salt. Otherwise, permanent damage could occur. Contact the Triplett for calibration salts or services. 33% calibration Plug the sensor probe into 33% salt bottle.
- Page 6 75% calibration After the 33% calibration, plug the sensor probe into a 75% salt bottle. Press the M /AV button to enter 75% calibration. “CAL” and calibrating value (75.2% if at 25°C) will blink on the LCD with current temperature at the left. The meter is now calibrating.
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Page 7: Specifications
Specifications Function Range Resolution Accuracy 0 to 5000ppm 1ppm ±(%5rdg + 30ppm) 5000 to 9999ppm 1ppm Not specified Pressure dependence: +1.6% reading per kPa deviation from normal pressure, 100kPa -10 to 60°C Temperature 0.1° ±0.6°C/0.9°F 14 to 140°F ±3%(10 to 90%) Humidity 0.0 to 99.9% 0.1%... - Page 8 2. Store the meter in an area with moderate temperature and humidity (refer to the operating and storage range in the specifications chart earlier in this manual). TROUBLESHOOTING Can’t power on Press for more than 0.3 seconds and try again. Check that the batteries have good contact and the correct polarity or that the AC adaptor is properly connected.
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Page 9: Co 2 Levels And Guidelines
Triplett / Jewell Instruments extends the following warranty to the original purchaser of these goods for use. Triplett warrants to the original purchaser for use that the products sold by it will be free from defects in workmanship and material for a period of (1) one year from the date of purchase.
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