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Explosion-Proof Telephone ExResistTel UL
Brand: Funke + Huster Fernsig GmbHCommunication devices for uses in firedamp-endangered industrial areas must be particularly adjusted to their extreme operating conditions.
Our ex telephone has been specially designed for applications in the petrochemical industry, as well as offshore installations, mills and port facilities.
It is resistant to high temperature differences, humidity, sea water, dust and extensive mechanical strain. The ExResistTel is certified for areas susceptible to explosive dusts and gases. It is equipped with a 21-key V4A stainless steel keypad that has been especially designed for use with gloves.
The ExResistTel is now certified to DNV GL Marine and offshore standards. Its alphanumeric display allows for a clear reading. Moreover, the telephone offers all the amenities that are already supplied as standard in the office communication sector.
A number of accessories and components especially certified for potentially explosive areas even enhance the telephone’s functionality.
Features• Locking function with PIN
• Hands-free operation
• Temperature range
• -25 °C to +60 °C
• Certified for dust and gas exposure
• Display
• IP 66 according to EN 60529
• Different housing colours
Specifications
Line Voltage
- 24 Vdc to 66 Vdc
Line Current
- 14 mA to 100 mA
Ringing Alternating Current
- 30 Vac to 90 Vac (At 16.6...54 Hz Ringing frequency)
- 24 Vac to 90 Vac (At 21...54 Hz Ringing frequency)
Ring Tone
- Greater than 4.0 KΩ at 50 Hz and 24...90 Vac
- Greater than 6.0 KΩ at 25 Hz and 24...90 Vac.
Inquiry Key
- Flash Function May be Set to 80 ms, 120 ms, 600 ms
Dialling Procedure
- PD Operation where the Pulse/Pause Ratio Can be Set to 1.5: 1 or 2: 1 in The Menu
- PD-DTMF Operation to be set in the menu.
W-Conductor
- Connection for External Secondary Sounder
Screw Terminals
- Up to 4 mm² rigid
- Up to 2.5 mm² flexible
Degree of Protection
- IP66 According to EN 60529
Impact Protection
- IK 09 according to EN 50102
Operating Temperature
- -25° C to +40° C for Temperature Class T6
- -25° C to +60° C for Temperature Class T5
Storage Temperature
- -25° C to +70° C
Housing Material
- Glass Fibre Reinforced Polyester
Height x Width x Depth
- Approximately 266 mm x 227 mm x 135 mm
Weight
- Approximately 5.5 kg
Display
- Visual Field Approximately 78 mm x 26 mm
- Two-line Alphanumeric Diplay with Pictograms
Keypad
- Metal Keypad with Ice Protection
- 21 Keys with ABC Lettering for Name Entries
Noise Suppression
- Greater than 3 dB Due to Integrated Horn Mouth