Triplett GSM350 User manual
User Manual
GSM350
CO/CO2 Meter with Temperature and
Humidity
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
1. CO/CO2 Sensor
2. Temperature and
Humidity Sensor
3. LCD Display
4. Left Function
Button
5. Right Function
Button
6. ON/OFF Button
7. Enter/Record
Button
8. Return Button
9. Air Bleed Outlet
10. Tripod Mount
11. USB (Charging
and Data) Port
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.
• Click the Left Button to enter the setup page, you can set the
Language, Temperature unit switch, data sampling settings,
automatic shutdown settings, alarm settings, brightness
adjustment, time settings.
• Short press of the Right Button will enter the CO, CO2
temperature and humidity and MAX/MIN/AVG mode.
• Press the Enter/Rec Button to enter the history data query
interface.
MAX/MIN/AVG Mode
In this mode, the real-time data, maximum,
minimum and average values for CO, CO2,
Temperature and Humidity is displayed
• Short press Right Button pauses the
reading.
• Short press Left Button switches the
display page, so that CO, CO2, Temperature
and Humidity can be switched in order
• Press the Return Button to return to the main page.
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; Right Button corresponds
to cursor moves down.
• After selecting the corresponding settings,
press the Enter Button to enter the
corresponding setting interface.
Language Setup
Use the cursor to move to the desire language setting.
• Short press the Enter Button to enter
the language setting.
• Choose from English or Chinese.
• Short press Enter Button again to
confirm and return to the setting interface, so that the Chinese
and English interface can be switched.
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
• Use the cursor to move to the
Datalogger settings, Press the Enter
Button to enter the data sampling
setting interface, The sampling rate,
duration, and sleep mode can be set here.
• The sampling rate is the sampling interval time, after the
duration setting is completed, the meter will automatically shut
down (when the timing reaches the sampling time)
Sampling Rate Setup
• Use the cursor to move to the sampling
rate setting. Short press Enter Button to
enter the sampling rate time setting
page.
• The time can be set 1min, 15min,1h.
• After the sampling rate is selected, - Short press the Enter
Button to confirm and return to the datalogger page.
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.
Auto Power OFF (APO) Setup
• Use the cursor to Auto-off, short
press Enter Button to enter
automatic shutdown setting
• User can select None, 2min,
10min, 1h.
• Press the Enter Button to confirm
and return to the settings interface.
• After setting up, the meter will Auto Power Off at the selected
time.
• Choosing None will run until low battery and shut down.
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
• After setting the short press button to
confirm the setting and enter the CO alarm
value setting and repeat steps.
• When the measured value is higher than
the alarm value, the display value color changes from black to red,
and when the CO or CO2 exceeds the alarm value, the buzzer
sounds to alarm.
Brightness Setup
• Use the cursor to adjust the display
brightness, short press Enter Button to enter
brightness adjustment. There are (4) levels
to select from.
• Short press Left Button to decrease the
brightness; Short press Right Button to
increase the brightness.
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.
• After setting up short press Enter
Button confirmation into the month
settings, and so on set the year.
• Can choose 24H system or 12H system, short press Left, or Right
Button can achieve switching.
• Then enter the time division setting, short press Left Button
plus, short press Right Button minus.
• Confirm and exit by Enter Button after setting up.
History (Page 1)
• Under the main interface, long press
the Enter Button to enter the
sampling history data query page.
•Move the cursor through the
Left/Right Button, select the
corresponding date and time data.
• Short press the Enter Button to enter the CO2, CO, Temperature
and Humidity selection interface.
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. And visualize it in
the form of histogram.
•A short press Left Button can make time
move forward, a short press of the Right
Button can make time move back, the
change of time can be seen in the
operation process.
Exporting Logged Data to .CSV File
• When the instrument is in the OFF state, you can use USB lcable
to connect to the computer and to transfer the logged data.
• The data of each sampling is recorded in the form of CSV (Excel).
• You can also delete files from this mode.
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
CO
0 to 1000PPM
1PPM
±5% FS
CO2
0 to 9999PPM
1PPM
±3% ±75PPM
Temper
ature
0 to 50°C/32 to
122°F
0.1°C/0.1°
F
±2°C/±4°F
Humidi
ty
0 to 100%RH
0.1%RH
±3.5% at (20% to 80%)
±5% at (0 to 20%)
±5% at (80% to 100%)
**Note: The humidity test is tested under about 1m/s wind
speed, the response timeof the sensor to the accuracy of the
index is about 30 minutes.
** Note: Recommended CO measuring environment 0 to 40°C (32
to 104°F), 15 to 95%; CO2 measuring environment 0 to 50°C (32 to
122°F),0 to 85%.
General Specifications
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