TRIPLETT GSM250 CO2 Humidity Temperature Wall Mount/Desktop Monitor User Manual

GSM250
CO2, HUMIDITY, TEMPERATURE WALL MOUNT/DESKTOP MONITORCO2,
User Manual

INTRODUCTION

Thank you for purchasing the Triplett GSM250 CO2, Humidity, and Temperature Monitor. This is an accurate, fast, smart and easy-to-use indoor air quality monitor. In addition to measuring the CO2 concentration, it also measures the ambient temperature, relative humidity and displays the hazardous level. This monitor is developed to detect the presence of CO2 in ambient air and helps users to take care of Indoor Air Quality.
Features:

• Large LED displays CO2 value, humidity, and temperature.
• Wall mount display with the light bar to provide easy reading from far distance
• Touch panel to program the setting
• NDIR (non-dispersive infrared) waveguide CO2 technology 3-color light bar (green/yellow/red) gradually changes color with CO2 concentration.
• CO2 Automatic background calibration (called ABC) for long-time drift compensation Buzzer
• Alarm function
• Areas of application: Widely used in the office building, school, exhibition hall, shopping mall, meeting room, fitness center, restaurant and other public places where personal comfort and health are important.

MATERIAL SUPPLIED

The standard package contains below:
CO2 monitor x 1pc
USB-C cable x 1pc
NOTE: provided USB-C cable is for power charging only, can’t be used for data transfer.
Operation manual x 1pc
Sticker & Screws for wall mount hanging x 1 pack

POWER UP

This CO2 meter is designed for wall mount & desktop use. It is powered up by 5VDC through a USB-C cable. For mobility, you may also use a power bank for temporary use. Once CO2 is powered, the LED will auto turn on.

CAUTION
Please take off the AC power adapter and store it well when this CO2 monitor is left idle for long. Please use a standard USB power supply (such as PC’s USB port, universal AC adapter with USB port). The improper power supply can cause serious damage to the device, or result in injury or death to the user.
The vents allow the air circulation liquid for measurement of the CO2 concentration and the ventilation should not be blocked.

DISPLAY, KEYPAD, SPECIFICATION

• CO7 concentration, parts per million (ppm) NOIR CO? sensor, display up to 9999ppm
• Ambient temperature sCiF switchable.
• Range -10 6(iC ( 14-1461) Relative humidity Range 0 1-99 9%RH
• Three atm. The status of measured CO2 Default. <800ppm 800pprn-1000ppm >1000ppm
• CO2 concentration alarm buzzer Buzzer is default as Off and can be activated through a keypad

SET
-Setting modes. Long press to enter setting mode
MUTE +
-While buzzer sounds, short press to mute
-While in setting mode, press to adjust the value

SPECIFICATION

Measuring range
CO2 0~9999 ppm,oF (-10~60oC)
Temperature 14~140
Humidity 0.1~99.9% RH
Resolution 1ppm, 0.1o C/o F, 1%RH
Accuracy

CO2  +50ppm+5% of reading(0~2000ppm)
Other range is 10% of reading
Temperature +0.6oC/+0.9 o Fo +5%RH (at 25C, 10~90%RH) ;
Humidity +7%RH ( at 25oC , other range )
Response time
CO2 <30 seconds (63% step change)
Tair <20 mins (90% step change)
Humidity <20 minutes ( 90% step change)
Operating 14°~140°F(-10~60 oC) , 0~95% RH (avoid condensation) o
Power supply 5VDC USB type C port
Power consumption <500mA
Meter size 8.9” x 6.0” x 1.8” ( 226 x 152 x 45 mm)
(L x W x T)
Weight 17.6oz (500g)
Standard package
Meter, manual, USB type C cable, Wall Mount accessories.

OPERATION

1. Power on and Measure:
-Connect the USB-C cable to a PC or 5VDC wall adapter or power bank to power on the device.
-After power on, the LED counts down for 10 seconds during warm-up.
-The device will start to measure CO2 concentration, ambient temperature and relative humidity after warmup.
2. Lightbar :
Besides value display, this meter is also equipped with a programmable light bar feature.
There are 3 different CO2 light bar color: Green, Yellow and Red. The color auto switches according to the measured Co2.
The default status of measured CO2. <800ppm 800ppm~1000ppm >1000ppm
3. Buzzer & How to turn off buzzer:
Buzzer function is default OFF in case of using in quiet places. It is required to activate the buzzer function in setting mode while an audible alarm is needed. While the buzzer is activated and measured CO2 is over the alarm threshold, the buzzer sounds once a second till pressing the “MUTE” key to stop.
4. Setting:
Long pressing “SET” key to enter the settings. And then press “SET” key to select setting modes in sequence: AL (Alarm setting), Unit (temperature unit), Buzzer, ABC (auto background calibration) and bL (Brightness of light bar).
Press ” + ” key to adjust the parameters.
*Note: During the setting process, the device will return to the main screen after 25 sec of idle

1. Alarm(AL): The default alarm setting is 1,000ppm. It is adjustable from 800ppm to 3,000ppm, the interval is 100ppm. This threshold is related to the buzzer alarm trigger and red light bar trigger. Press “+” to adjust the alarm threshold value.

2. Temperature unit: Press “+” to switch between oC and oF

3. Buzzer activation: Buzzer is defaulted OFF for using in quiet places. Press “+” to turn it to ON.

4. CO2 ABC function: ABC means the lowest measured CO2 value within 7 days will be used as 400ppm to auto-calibrate the CO2 sensor to reduce the long-term drift. It is default as ON. However, it is not suggested to turn on the ABC feature in hospitals, greenhouses, wineries or any less ventilated places where CO2 has no chance to get low.
   Press “+” to switch between ON and OFF.

5. The brightness of light bar: The brightness of light bar is adjustable. From off to strong is 0 to 10, 0 is turned off, 10 is the strongest. Default as time.

6. Press “+” to adjust the brightness of the light bar to fit your application. Though the lightbar might be set to off, it will still blink at the weakest level 1 brightness while measured CO2 is higher than alarm threshold.

5. Calibration
The meter is calibrated at standard 400ppm CO2 concentration in the factory. It’s suggested to do either ABC or manual calibration regularly to maintain good accuracy. Press “ SET” + “+”keys at the same time till “CAL” is flashing. Long pressing “SET” key to start the calibration. During the calibration, “CAL” will flash on display with a 300-second count down. After 5 mins count down, the display return to normal measuring mode to indicate the calibration is done. During the calibration procedure, the long-pressing “+” key can quit the calibration function. CAUTION: Do not calibrate the meter in the air with an unknown CO2 level. Otherwise, it will be taken as 400 ppm and leads to inaccurate measurement. The manual calibration is suggested to be done outdoor with good ventilation, fresh air and sunny day where CO2 level is around 400ppm. Do not calibrate in a rainy day because high humidity will affect the CO2 level in air. Do not calibrate in places crowded with people or close to where exist high CO2 such as ventilating outlets or fireplaces.

ERROR CODE AND SOLUTIONS

calibrate. For other E02: leave the meter in room condition for 30 mins.
If it not work, send it back to repair
0.00E+00| Measured reading is above the upper limit| For CO2 E03: put the meter in fresh air for 5 mins. For other E03: leave the meter in room condition for 30 mins.
If it not work, send it back to repair
0.00E+00| ABC mode of CO2 sensor is failing| Send back to repair
E31.34| Temp./RH measuring circuit is in error| Send back to repair

? Can’t power on
Check whether the adaptor is well plugged and the 5VDC power supply is working.

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 warranty does not apply to any of our products that have been repaired or altered by unauthorized persons in any way or purchased from unauthorized distributors so as, in our sole judgment, to injure their stability or reliability, or which have been subject to misuse, abuse, misapplication, negligence, accident or which have had the serial numbers altered, defaced, or removed. Accessories, including batteries, are not covered by this warranty

Copyright © 2021 Triplett
www.triplett.com

References

• Triplett Test Equipment & Tools for Industrial & Electronics Solutions

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