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HWB-C Explosion proof Intrinsic Safety Telephone
Product Description: lHWB-C Explosion proof Intrinsic Safety Telephone, in addition to the functions of a regular telephone, has full electronic and c
Product details
Product Introduction
Features
The HWB-C explosion-proof telephone coupler can be used in conjunction with various types of telephone exchanges ranging from 48 to 60 volts.
The call line adopts an automatic gain control (AGC) circuit, which ensures that the volume of the call sound is not significantly affected by changes in the length of the external line.
Using electronic music bells, the ringtone is crisp and pleasant to listen to.
This explosion-proof telephone can be used as a desk machine or wall mounted, making it convenient and reliable.
Equipped with full electronic and contactless sensing function
Technical Specifications:
| Explosion proof parameters | |
| Explosion proof certificate number | CNEx15.0003 |
| Explosion-proof marking | Ex d ib IIB T6 Gb/Ex tD A21 IP65 T80℃ |
| Protection level | IP54 |
| Electrical parameters | |
| Ringing voltage (v) | ≤ 48 |
| Ringing current (mA) | ≤ 25 |
| Number issuance method | Audio/Pulse |
| Ringing sound level (dB) | ≥ 85 |
| Send loudness rating value | ≥ 2dB(0km) ≤ 15dB(5km) |
| Received loudness rating value | ≥ -8dB(0km) ≤ 2dB(5km) |
| electrical connection | Two core cable connection coupler |
| mechanical parameters | |
| material | ABS engineering plastic |
| weight | 1Kg |
| Installation method | Wall mounted/desktop |
| Environmental indicators | |
| Explosive gas mixture | IIA IIB |
| atmospheric pressure | 80~106KPa |
| ambient temperature | -20℃~+60℃ |
| relative humidity | ≤ 95%RH(+25℃) |
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