MD200 Gas Detection ModuleMD200 Gas Detection Module_Gas Detection Module_Ningxia Maiya Sensor Technology Development Co., Ltd

Size: ① Motherboard, ③LCD module: PCB→Φ78mm; ② Sensor integrated probe: PCB→Φ36mm; Sensor standard 4 series or 7 series

Model

Weight	0.6kg
Sensor type Standard	4 series, 7 series electrochemical sensor, infrared sensor, catalytic combustion sensor, PID sensor
Power supply	two-point calibration
oxygen(O2)	12-24VDC
Output	4-20mA, RS485, relay
Sampling mode	diffusion
Display	2.0 inch HD LCD color screen
User Guide	LCD panel buttons, infrared remote control
Operating temperature	-20°C ~ 55°C
Humidity	0-95% Relative humidity (non-condensing)
Number of relays	Up to 3 relays, Max. 30V,2A

1. Terminal definition

Terminal number	Definition	Terminal number	Definition
J1-24V	Input power +	J3-C3	The fault relay is normally closed
J1-GND	Input power -	J3-M3	Fault relay common end
J1-4-20mA	Output current +	J3-O3	The fault relay is normally on
J1-RS485A	Output RS485A	J4(++)	Sound and light alarm +
J1-RS485B	Output RS485B	J4(--)	Sound and light alarm -
J1-M1	Low alarm relay common end
J1-O1	The low alarm relay is normally on
J1-M2	High alarm relay common end
J1-O2	The high alarm relay is normally on

Note: J4 can only be connected to the horn and light alarm below 24V-100mA, and the high-power horn and light alarm can be connected

Can start or damage the drive circuit.