CO2 Monitor and Controller in Temp.& RH or VOC Option

Short Description:

Model: GX-CO2 Series

Key words:

CO2 monitoring and control, optional VOC/Temperature/Humidity
Analog outputs with linear outputs or PID control outputs selectable, relay outputs, RS485 interface
3 backlight display

A real-time carbon dioxide monitor and controller with temperature and humidity or VOC’s options, it has powerful control function. It not only provides up to three linear outputs (0~10VDC) or PID(Proportional-Integral-Derivative) control outputs, but also provides up to three relay outputs.
It has strong on-site setting for different projects requests through a robust set of advanced parameters pre-configuration. Control requirements can also be customized specifically.
It can be integrated into BAS or HVAC systems in seamless connection using Modbus RS485.
The 3-color backlight LCD display can indicate three CO2 ranges clearly.

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Brief Introduction

Product Tags

FEATURES

Design for monitoring and control carbon dioxide
NDIR infrared CO2 sensor inside with Self Calibration, makes CO2 measurement more accurate and reliable.
More than 10 years lifetime of CO2 sensor
Three-color backlight change of LCD for three CO2 range
Up to three relay outputs to control three devices.
Up to three 0~10VDC outputs with linear or PID selectable
Multi-sensor monitoring can be selectable with CO2/ TVOC/Temp./RH
Optional Modbus RS485 communication
24VAC/VDC or 100~230VAC power supply
Open parameters setup for end users to preset control details for different applications
Designed for a CO2/Temp. or TVOC transmitter and a VAV or ventilation controller.
Friendly control value setting by the buttons

TECHNICAL SPECIFICATIONS

Carbon Dioxide
Sensing element	Non-Dispersive Infrared Detector (NDIR)
CO₂ measuring range	0~2000ppm (default) 0~5000ppm (selected in the advanced setup)
CO₂ Accuracy @22℃(72℉)	±50ppm + 3% of reading or ±75ppm (whichever is greater)
Temperature dependence	0.2% FS per℃
Stability	<2% of FS over life of sensor (15 year typical)
Pressure dependence	0.13% of reading per mm Hg
Calibration	ABC Logic Self Calibration Algorithm
Signal update	Every 2 seconds
Warm-up time	2 hours (first time) / 2 minutes (operation)
General Data
Power supply	24VAC/VDC or 100~230VAC(for relay outputs)
Consumption	2.5W avg., 5.5W max.
Relay output	Up to three relay outputs, max.5A/ resistive load/each for control up to three devices.
Analog output	Up to three 0~10VDC linear outputs or PID control outputs for CO2 & temperature & RH (or TVOC)
Modbus communication	RS-485 with Modbus protocol, 19200bps rate, 15KV antistatic protection, independent base address.
Display screen	LCD displays measurements and setting /working information. 3-color backlight change is for three CO2 range. Green: <800ppm (default) Orange: 800~1200ppm (default) Red: >1200ppm (default) The color change points can be set via advanced parameter or RS485.
Operation conditions	0~50℃; 0~95%RH, non condensing
Storage conditions	-10~60℃, 0~80%RH
Net Weight	280g
Dimensions	150mm(L)×90mm(W)×42mm(H)
Installation	wall mounting with 65mm×65mm or 2”×4”wire box
Housing and IP class	PC/ABS fireproof plastic material, protection class: IP30
Standard	CE-Approval