FDJB-2002 type mining wind turbine methane blocking deviceDetailed product description：

FDJB-2002 Mining Wind Power Methane Locking Device

One purpose and function

A monitoring and locking device suitable for various work sites in coal mines. Based on the status of ventilation facilities in the excavation face and the methane content in the associated tunnels, it realizes the locking and restoration control of corresponding electrical equipment in local ventilation fans and associated excavation tunnels, as well as the safety monitoring device that prohibits forced starting of power equipment. This device provides intrinsic safety power supply for three GJ4/100-2002 mining high and low concentration methane sensors and accepts three high normally open and one normally closed circuits.  

Technical parameters and specifications of FDJB-2002 mining wind turbine methane interlocking device

1. Number of analog input channels: 3
2. Number of switch input channels: 2
3. Control the number of output channels: 4 channels, each with one open contact, capacity: AC 660V 300mA; AC 36V, 5A
4. Power supply voltage: AC 50Hz 660V; 380V; 127V optional
5. Intrinsic safety power output: three 21V/300mA, one 12V/450mA
6. The error between the locking device and the set value when implementing functions such as alarm, locking, and unlocking should comply with the following table:

alarm point	Locking point	Unlock Point
0.50 ±0.10	0.50 ±0.10	0.50 ±0.10
1.00± 0.10	1.00± 0.10	1.00± 0.10
1.50 ±0.20	1.50 ±0.20
	3.00 ±0.30

7. Host display: Analog input channel number, methane concentration value, wind speed (air volume) switch status, output control action status:
8. The high and low concentration conversion time of the high and low concentration methane sensor needs to be completed within 30 seconds
9. External dimensions and weight