IMK-1 explosion-proof microphone

data sheet
I. Main performance indicators:
1. Conditions of Use:
a. Ambient temperature: -45 ℃ ～ 55 ℃
b. Relative humidity: ≤95%
c. Atmospheric pressure: 86KPa ～ 106KPa
d. Explosive gas mixtures in the temperature class Ⅱ B class T5
2. The main technical parameters:
a. Power supply voltage: DC10V
b. Current: 0.2mA
c. Explosion-proof mark: ExibⅡBT5
d. Working frequency: 100 ～ 6500Hz
e. Overall dimensions: 120 × 150 × 180
f. Weight: 1.5Kg


Product structure and working principle
1. Structural features:
The product is made of cast aluminum shell, electrostatic spraying, the overall structure is sturdy and beautiful, and can work in harsh environments for a long time.
2. working principle:      
 Mike
Mike, turn the voice into an electrical signal and send it to the phone for amplification.
switch
During a call, turn the switch to the "ON" position to turn on the power. When the call is complete, turn the switch to the "OFF" position to turn off the power.


Product installation and precautions
1. Product installation
a. Make mounting holes on the table according to the installation dimensions and fix them with bolts.
b. Connect to the phone according to the wiring diagram.
Fives


Fourth, product use and operation
1. Turn on the power switch
There is a rotary switch on the panel. During a call, turn the switch to the ‘ON’ position to turn on the power. When the call is complete, turn to the ‘OFF’ position to turn off the power.
2. Call to call
After turning on the switch, speaking to Mike, the other party can hear your voice, and you can also hear the other party's answer from the speaker of the phone.