【Product Performance】

1.Explosion-proof Performance

The keyboard features an explosion-proof shell, enabling it to operate normally in environments with explosion hazards due to gas or dust. It effectively prevents any external sparks or arcs that could potentially cause an explosion.

2.Intrinsically Safe Design

The mining intrinsically safe keyboard adheres to strict intrinsically safe design principles and complies with relevant national explosion-proof standards (such as Ex ia I Ma). It effectively prevents explosions caused by electrical sparks, static electricity, or other reasons in high-risk environments.

3.Strong Anti-interference Capability

The mining intrinsically safe keyboard boasts robust resistance to electromagnetic interference. It can operate stably in high electromagnetic interference environments, ensuring accurate input and normal device operation.

4.Easy to Operate

The device is designed with ergonomics in mind, featuring a reasonable key layout and simple operation. It provides a convenient input method in mines and other hazardous environments, reducing the operational difficulty for users.

【Working Principle】

The keyboard has a stainless steel shell and can be fixed on an iron frame for practical use. There is an interface on the back, and the keyboard is placed directly in front of the computer.

As an intrinsically safe keyboard for mining use, its main function is to detect key responses under program control and output signals corresponding to the detected key values.

【Product Parameters】

A.Explosion-proof Type

Intrinsically safe for mining use, marked as "Ex ib I Mb".

B. Structural features

a) Dimensions: 375 × 156 × 38 (mm);

b) Whole machine weight: about 2.0kg.

C. Voltage and current

a) Working voltage: DC 5 V；

b) Working current: ≤ 100 mA

D. Transmission port (keyboard, touch)

a) Quantity: 1 route;

b) Transmission method: half duplex, USB signal;

c) Transmission rate: 1.5Mbps;

d) Peak to peak operating voltage: 3-10V;

e) Maximum transmission distance: 3m.

E. Function

a) Equipped with button and touch operation functions; It has USB signal transmission function.

b) The keyboard adopts an 83 key design and integrates a touchpad

F. Intrinsic safety parameters: Ui：5.4V，Ii：550mA，Ci：0μF，Li：0μH。

【Product Qualifications】