Introduction Congratulations on your purchase of the Triplett GSM350 Carbon Monoxide/Carbon Dioxide IAQ Meter The GSM350 simultaneously displays CO, CO2, Temperature and Humidity. The meter has a real-time clock, datalogs and has user settable alarms for CO/CO2. Meter Description CO/CO2 Sensor...
Operation Measurement Mode • Long press the ON/OFF Button to boot and shutdown. • After the device is turned on, the interface can display the value of Time, Battery Power, CO, CO2, Temperature and Humidity in real time, CO will begin a sensor warm up period of 30 seconds and then will start to measure.
Setup Menu User Interface allows for the custom setting of Language, Temperature Unit, Data Log sampling rates, Auto Power Off time, Alarm settings, Brightness adjustment, and time settings. • Short press Left/Right Button can move cursor, Left Button corresponds to “ cursor moves up;...
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Temperature Units (°C/°F) Setup • Use the cursor to move to the desired Unit, (°C or °F) press the Enter Button to enter the temperature unit setting. • You can select the °C or °F. • Short press the Enter button to confirm and return to the settings interface Datalogger Setup •...
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Sleep Mode Setup • Use the cursor to move to the sleep mode setting, then short press Enter Button to enter the sleep mode setting interface. • Set the sleep mode to ON or OFF • Short press the Enter Button to confirm and return to the datalogger page.
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Alarm Setup • Use the cursor to move to the Alarm setting, short press Enter Button to enter the alarm setting. • The CO2 alarm value setting is first, a short press of the Left Button increases alarm limit, and a short press of the Right Button decreases the alarm limit •...
Date/Time Setup • Use the cursor to move to the Date/Time setting , short press the Enter Button to enter the time initialization setting. • First set for the year, short press Left Button plus, short press Right Button minus. •...
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History (Page 2) • After entering the selection interface, there are CO2, CO, Temperature and Humidity options. • Select one of them and press the Enter Button to enter the histogram display interface. Histogram Query (Page 3) You can query the real-time data corresponding to the history time and the MAX/MIN/AVG value.
Maintenance • Maintenance or services are not included in this manual and products must be repaired by professionals. • Specifications are subject to change. Specifications Function Range Resolution Accuracy 0 to 1000PPM 1PPM ±5% FS 0 to 9999PPM 1PPM ±3% ±75PPM Temper 0 to 50°C/32 to 0.1°C/0.1°...
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Warranty 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. This...
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