Трансмитер за температура и CO за стенен монтаж

CMW,CMWN & CMD Carbon Monoxide (CO) Transmitter/Controller   

Applications & Features

l  It’s necessary to control the ventilation of car park and vehicle maintenance and test work shop according to many building HVAC regulations. Considering of energy efficiency, demand controlled ventilation (DCV) is recommended to provide enough fresh air according to CO concentration and temperature. CM transmitter and controller are designed for these applications. It can effectively control the ventilation system to safety and energy-saving operations

l  Environmental friendly electrochemical sensor gives good long term accuracy, sensitivity and reliability

l  Better than most other similar sensors, it gives more than 5 years sensor life to protect customer’s investment

l  Better than most other similar sensors, it only need periodical recalibration as long as 3 years or more, maintain 5% accuracy

l  All electrical terminals are on the inside bottom, avoid any possible destroy to PCB when wiring (for CMWN)

l  Digital technology applied, multiple outputs optional, over voltage and reverse polarity protection, high reliability and anti-interference capability

l  Wide range of operating temperature, optional relay to actuate the alarm or control function output

l  LCD & function keys can set various parameters, calibrate and adjust output, so that the product can be a stand alone controller

Specifications

CO Sensor: Electrochemical gas sensor

Range: 0~100ppm, or other (0-400ppm)

Accuracy: ﹤±5% @ 0-400ppm

Temperature sensor: Thermistor

Range: 0~50°C

Accuracy: ±0.5°C@25°C (≥1m/s air flow)

Output: 4~20mA (3 wires), 0~10VDC, RS485 / Modbus; OUT1-: T, OUT2: CO

Relay: 2×SPST, 1A/30VDC, 0.5A /125VAC(for CMW，CMD), 3A/30VDC, 3A/250VAC (for CMWN)

Response Time: ≤60s

Output Load: ≤500Ω (current), ≥2KΩ (voltage)

Power: 15~28VAC/15~36VDC

Display & Keys:optional LCD Display & Keys(CMW/CMWN), see more details on LCD & Keys operation

Work environment: -10~60°C (continuous); -40~70°C (intermittent); 0-95%RH (Non- cond.)

Housing: fireproof ABS

Protection: IP30 (CMW/CMWN), IP65 (CMD)

Agency Approval: CE

 

Models

Model	CMW/ CMWN					Wall mount CO transmitter/ Controller
	CMD					Duct mount CO transmitter/ Controller
Output		1				4~20mA & 0~10VDC
		B				4~20mA & 0~10VDC,   RS485/Modbus
Range			0			0~100ppm/0-50°C
			7			other(0~400ppm/ 0-50°C)
Relay output				0		N/A
				1		2×SPST
LCD&Keys (CMW/CMWN)					0	N/A
					1	LCD
					2	LCD&Keys