Explosion-proof control box technical specifications
Working Voltage: AC127V/AC660V.
Operating Current: ≤1A.
Intrinsic safety switch input signal: High and low level signals, low level ≤ 5V, high level ≥ 13V.
intrinsic safety analog input signal: input current signal 4mA to 20mA.
Switching Output: Relay Passive Contact Output.
Networking Communication: Transfer Rate: 10/100 Mbps auto-negotiation.
Signal operating voltage peak-to-peak: 1.0V to 5.0V
Transmission Distance: ≤100m; (using CAT5, CAT6 category network twisted pair cable).
Voice Communication: Sound Intensity ≥ 85 dB(A)
Distortion ≤ 15%.
Safety parameters: U0: DC18.5V, I0: 1000mA; b) C0: 2.1μF, L0: 0.1mH.
Explosion-proof Control Cabinet Product Details
Product Keywords: Mining Display Control Box, Explosion-proof Display Control Box
Usage
KXJ127(A) Coal Mine Explosion-proof and Intrinsically Safe Display Control Box (hereinafter referred to as the display control box) is mainly installed in underground electrical and mechanical chambers, drainage pump rooms, belt conveyor heads, temporary drainage points, and other locations. It is connected to the mine's Ethernet network for image transmission and voice intercom between the ground and underground. Its logical operations can be realized through software programming, simplifying and making complex logical control easy to execute. The input/output settings inside the control box are equipped with isolation circuits, reliable electrical protection, and safety protection, ensuring the reliable operation of the controller and electrical safety.
The display control box is connected in scenarios with internet access (forming an intranet in scenarios without internet access), enabling the formation of a virtual intranet with the remote command end, facilitating remote diagnostics, program downloads, and other tasks.
The control box complies with the execution standards GB/T 3836-2021, Q/ZMD026-2022.
Environmental Conditions
——Temperature: 0℃ to 40℃
Average relative humidity: ≤95%RH (+25℃)
Atmospheric Pressure: 80kPa ~ 106kPa
Mechanical environment: Applications with no significant vibration or impact.
— Suitable for environments with risks of gas and coal dust explosions;
No corrosive gases in the surrounding medium.
Product Categories
Type
Mine-used explosion-proof and intrinsic safety type “Ex db [ib Mb] I Mb”.
Product Structure and Principle
Product structure and dimensions
The display control box is composed of components such as intrinsic safety power supply, touch screen, network devices, PLC, relay, and housing.
Primary Functions
Equipped with voice communication capabilities for intercom with other display control boxes.
Connects to other switches, transmitting voice data, video data, etc., over the network.
Features the capability to collect analog and digital signals.
Features relay output control function.
Equipped with communication functions. Features both network communication and RS485 communication methods.
The display screen shows the operating status and parameters.
Features display of camera surveillance images on the screen.
