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Help CenterCO2 Monitor With LED Alarm
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Specifications
1.CO2 monitor with 3 LED alert2. Temperature detection and LCD display.
3. One relay on/off output to control a fan.
Gas detected |
Carbon Dioxide (CO2) |
Sensing element |
Non-Dispersive Infrared Detector (NDIR) |
Temperature sensor |
NTC |
Humidity sensor |
HS series capacitive sensor |
Temperature dependence |
0.2% FS/°C |
Temperature correction |
Self compensation |
Power supply |
24VAC/VDC, or 100~240VAC, 60HZ, selectable with the order |
Consumption |
3.5 W max. ; 2.5 W avg. |
Accuracy@25°C(77°F) |
±30ppm + 3% of reading |
Stability |
<2% of FS over life of sensor (15 yr typical) |
Calibration interval |
ABC Logic Self Calibration Algorithm |
Non linearity |
<1% of FS |
Pressure dependence |
0.13% of reading per mm Hg |
Altitude calibration |
Programmable from 0-9,900m in 100m increments |
Response Time |
<2 minutes for 90% step change |
Signal update |
Every 2 seconds |
Warm up time |
2 hours (first time) 2 minutes (operation) |
CO2 measuring range |
0~2,000ppm (default) 0~20,000ppm, programmable selection 0~50,000ppmt |
CO2 setting & Display resolution |
1ppm |
Temperature measuring/ setting range |
0~50°C(32~122°F)/ 5~45°C(41~113°F) |
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Humidity measuring/setting range |
0~99%RH/ 5~95%RH |
Analog output |
0~10VDC linearized output or PID control output, selectable by end users |
Output resolution |
10Bit |
Relay output |
One or two dry contact outputs with programmable selection to control CO2, temperature, humidity Rated switching current: 3A(220VAC/30VDC), resistance load |
Communication interface |
RS-485, 9600/14400/19200(default)/28800 or 38400bps (programmable selection), 15KV antistatic protection, 3 independent base address, max network node 64 |
Flow rates |
Diffusion version 80 ~ 120 cc/min Flow through version 40~50cc/min |
Operation conditions |
0~50°C(32~122°F); 0~95%RH, |
Storage conditions |
-10~60°C(14~148°F)/5~90%RH non condensing |
NDIR life |
15 years |
Weight |
360g |
Dimensions |
130mm×90mm×40mm |
Installment standard |
65mm×65mm or 2”×4”wire box |
Interface connections |
Maxi. 9 terminals |
Wiring standard |
wire section area<1.5mm2 |
Approval Standard |
CE-Approval |
Programming and selection |
Via internal jumpers and push-buttons on the panel |
Features:
1) Real-time detect and display CO2 level from 0ppm to 5,000ppm;
2) Real-time detect room temperature, and optional humidity detection from 5%RH to 95%RH;
3) NDIR CO2 sensor with 15 years lifetime
4) Patented Self Calibration Algorithm makes the CO2 sensor used well without calibration.
5) LCD display CO2 level and 3-LED indicate CO2 preset range
6) Lights brightness is adjustable
7) Easy preset for alert values
8) Options: One dry contact output to control a ventilation device; RS485 interface
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