Products

Contact Person : Ms. Tian Maggie
Company Name : Tongdy Control Technology Co., Ltd.
Tel : 86-10-58731276,58731277,58731278
Fax : 86-10-58731275
Address : Beijing,Beijing,3-3-5F, IN-DO Mansion, No.Jia 48 ZhiChun Road Haidian District, Beijing. China
Country/Region : China
Zip : 100098

CO2 monitor

Product Detailed

1.Monitoring and control room CO2 level, as well as room temperature and humidity. 2. Buttons to operation 3.Wall-mounting

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)	±40ppm + 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)
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) Multiple control functions and high performance with low prices

2) Application in all ventilation systems, or public places

3) Wall mounting type

4) Built-in pump type for some special applications

5) LCD display detecting both CO2 level and temperature, also relative humidity (optional)

6) NDIR infrared CO2 sensor with special ABC_Logic Self Calibration System and 15 years long lifetime. It makes the CO2 measurement more accurate and more reliable.

7) Specially provide the altitude calibration

8) Microprocessor control, quick response, high precision

9) Providing strong control outputs with up to three 0~10V analog outputs and three relay dry-contact outputs

10) The analog output with two alternatives: PID control output or linearized over full range output

11) Different control mode for delays selected by users applications such as ventilation systems or greenhouses

12) Locale adjustable range of CO2: 0~2,000ppm/0~5,000ppm/20,000ppm/ 0~50,000ppm;

adjustable range of temperature: 5~45adjustable range of humidity595%RH

13) RS-485 communication interface optional, 15KV antistatic protection, independent base address setting

14) Specially provide a simple CO2 controller with 6 indicator lights and a relay output to control a fan.

15) CE-Approval

CO2 monitor

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