Explosion-proof telephone HAK-1

Explosion-proof telephone

Usage environment
This device is produced according to the / standard and can be used as an intercom communication device among explosion-proof communication equipment in coal mines. Can

Two or up to four devices communicate with each other, and can also be used for communication. The device consists of a single-line telephone set produced by our company (hereinafter referred to as the telephone set). The phone has the characteristics of small size and light weight, and uses ordinary R plastic wire

for network connection. The phone is made of high-quality aluminum and is sealed. It has good moisture-proof, dust-proof, vibration-proof

impact resistance, and is suitable for various working environments in coal mines.
Structural Features
This phone consists of two parts: the chassis and the handle. They are both made of high-quality aluminum and have good mechanical properties, moisture resistance and anti-corrosion


The ringer of this phone is installed in the body of the phone using piezoelectric ceramics with moisture-proof properties. All electronic components are mounted on a printed circuit board.

The ringer is connected to the body through a plug socket. The battery The box is located inside the body.
Technical Parameters
Power supply: Powered by R-type white elephant dry batteries.
Transmission characteristics:
Mining simulation line length transmitting loudness rating value (R receiving loudness rating value (RR

side sound pressure masking rating value (R
ringing sound Level greater than B
Environmental conditions
Ambient temperature: ℃+℃
Relative temperature % (+℃)
Atmospheric pressure
Environmental noise B
Communication distance , the cable model specification is **/.
Jining Hengwang Industrial and Mining Machinery Co., Ltd. mainly produces the following products: start and stop sensors, smoke sensors,

/High and low concentration methane sensors, carbon monoxide sensors, R carbon dioxide sensor deviation sensor,
deviation switch, speed sensor, temperature sensor, intrinsically safe infrared temperature sensor, start and stop sensor

chemical oxygen self-rescuer, pressure air Self-rescuer, positive pressure oxygen respirator,
Negative pressure oxygen respirator, B portable methane detection alarm
Price is favorable, customers are welcome to inquire and purchase!!!(_)
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Telephone:
Fax:
Mobile:
Manager: Han Ting
:
Email: @
Website::
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Shandong Jining Hengwang Industrial and Mining Machinery Co., Ltd.