ATEX Phones Zone 1 Hazardous Area – FHF ExResistTel MB Explosion Proof Telephone
ATEX Phones Zone 1 Hazardous Area – FHF ExResistTel MB Explosion Proof Telephone
ATEX Phones Zone 1 Hazardous Area
FHF ExResistTel MB telephones are ATEX phones designed for applications in the petrochemical industry as well as offshore installations, mills and ports.
Certified for areas susceptible to explosive dust and gases the FHF ExResistTel MB offers safe communications in Zone 1 hazardous area locations.
FHF ExResistTel MB is suitable for extreme operating conditions offering hazardous area communications in locations such as those with high temperatures, humidity, sea water, dust and extensive mechanical strain.
The FHF explosion proof telephone is equipped with a 21-key V4A stainless steel keypad that has been especially designed for use with gloves.
The ExResistTel MB ATEX phone is now certified to DNV GL Marine and offshore standards. Its alphanumeric display allows for a clear reading as well as offering all the same capabilities as standard in the office communication sector.
FHF ExResistTel MB
ATEX Phones Zone 1 Hazardous Area
Features
- 3 direct dial keys (freely programmable)
- ATEX phone with hands-free operation
- Temperature range -25 °C to +60 °C
- Certified for dust and gas exposure
- IP66 according to EN 60529
- V4A stainless steel keypad
- GRP telephone housing
FHF ExResistTel MB – Dimensions
FHF ExResistTel MB Explosion Proof Telephone – Protection Class II
ExResistTel MB Explosion Proof Telephone
Technical Specification
| Hazardous Area ATEX Certification – Zone 1Â | |
| Hazardous area protection type | II 2 G Ex e mb [ib] IIC T5 Gb II 2 D Ex tb [ib] IIIC T100°C Db -25 °C < Ta < 60 °C II 2 G Ex e mb [ib] IIC T6 Gb II 2 D Ex tb [ib] IIIC T80°C Db -25 °C < Ta < 40 °C |
| Approval | DMT 02 ATEX E 183 |
| Specifications | |
| Supply voltage | 24 VDC to 66 VDC |
| Supply current | 15 mA to 100 mA |
| Ringing alternating current |
24 VAC to 90 VAC (at 21…54 Hz ringing frequency) 30 VAC to 90 VAC (at 16.6…54 Hz ringing frequency) |
| Ring tone impedance | Greater than 6.0 KΩ at 25 Hz and 24…90 VAC. Greater than 4.0 KΩ at 50 Hz and 24…90 VAC |
| Inquiry key | Flash function may be set to 80 ms, 120 ms, 600 ms |
| Dialling procedure | PD-DTMF operation to be set in the menu. PD operation where the pulse/pause ratio can be set to 1.5:1 or 2:1 in the menu |
| W-conductor | Connection for external secondary sounder |
| Connection terminals | Up to 4sqmm rigid, Up to 2.5sqmm flexible |
| Environmental conditions | |
| Degree of protection | IP 66 according to EN60529 |
| Impact protection | IK 09 according to EN50102 |
| Operating temperature | -25 °C to +60 °C for temperature class T5 -25 °C to +40 °C for temperature class T6 |
| Storage temperature | -25 °C to +70 °C |
| Housing | |
| Material | Glass fibre reinforced polyester |
| Height x width x depth | Approx. 266 mm x 227 mm x 135 mm |
| Weight | Approx. 5.5 kg |
| Keypad | Metal keypad with ice protection 21 keys with ABC lettering for name entries incl. 3 direct dial keys (freely programmable) |
| Receiver | |
| Stabilization bracket | Integrated, adjustable stabilization bracket |
| Handset cord | Stainless steel armoured cord |
| Earpiece | Dynamic capsule with stray field coil for inductive coupling of hearing aids |
| Mouthpiece | Elektret microphone |
| Noise suppression | Greater than 3 dB due to integrated horn mouth |
| Further characteristics | |
| Optical call indication | Display screen |
| Ringing volume | Approx. 90 dB(A) in 1 m distance |
| Ring tones | 10 sounds available |
| Listening by loudspeaker | Maximum volume approx. 68 dB(A) in 1 m distance |
| Handsfree operation | Maximum volume approx. 68 dB(A) in 1 m distance |
| Amplified listening | Receiver volume may be set from 0 dB(A) to +12 dB(A), in 7 steps |
FHF ExResistTel MB
Ordering Information
The full part number for the coloured cap is made up by appending the colour code to the part numbers given below*.
| FHF ExResitTel Part Number | Designation | MEDC Model |
| MEDC FHF 112 861 21 | Ex II telephone | Black |
Colour Codes: Transparent 11, Red 12, Amber 13, Green 14 and Blue 15
➡ FHF ExResistTel MB has a number of ATEX telephone accessories and components especially certified for potentially explosive areas that can enhance the telephone’s functionality.
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| Ex Headset – MEDC FHF 112 861 03 | Ex II additional earpiece – MEDC FHF 112 861 04 | Ex II secondary sounder – MEDC FHF 112 643 06 | TWIN EExII – MEDC FHF 118 833 ..* | Protection hood – available in a range of colours see spec for part numbers |
| ATEX Phone Accessory Part Number | Designation | MEDC Model |
| MEDC FHF 112 861 03 | Ex II additional earpiece | |
| MEDC FHF 112 861 04 | Ex headset | |
| MEDC FHF 211 842 06 | Ex II secondary sounder | |
| MEDC FHF 118 901 01 | Telephone hood model 404 | galvanized steel, yellow |
| MEDC FHF 118 901 11 | Telephone hood model 404 | V4A stainless steel |
| MEDC FHF 118 901 12 | Telephone hood model 404 | synthetic material, orange |
| MEDC FHF 118 901 13 | Telephone hood model 404 | synthetic material, yellow |
| MEDC FHF 118 901 14 | Telephone hood model 404 | galvanized steel, red |
| MEDC FHF 118 901 15 | Telephone hood model 404 | synthetic material, red |
| MEDC FHF 118 901 22 | Telephone hood model 404 | GRP, yellow |
| MEDC FHF 118 901 23 | Telephone hood model 404 | GRP, orange |
| MEDC FHF 118 901 03 | Floor mounting console for Model 404 | yellow |
| MEDC FHF 118 833 ..* | TWIN-EExII |
*The ExResistTel MB is certified to ATEX/IECEx/DNV.
*ATEX telephone accessories are not available as DNV variants.
FHF ExResistTel MB – Certifications
FHF
FHF is part of the Hazardous Area Communication (HAC) group belonging to Eaton who own MEDC. MEDC has been added to the EATON hazardous area communications business unit to which FHF have a complimentary range of hazardous area signalling and ATEX phones. T&D distribute the extensive range of FHF & Eaton MEDC ATEX Certified manual call points, visual, audible alarms, loudspeakers and telephones for hazardous area workplaces, including Zone 1 & Zone 2 explosive atmospheres.
Thorne & Derrick, are the Explosive Atmosphere Experts, distributing an extensive range of ATEX Certified Equipment including heat tracing cables and systems, electrical heating products, electrical enclosures and plug/sockets outlets.
Complete range of LV-HV Cable Joints, Terminations, Cleats & Glands are available to support installation of power, control and instrumentation cables up to 33kV – includes Cold Shrink for use in hazardous areas to provide electrical insulation and cable protection.
Thermon | EXHEAT | Abtech | Marechal Electric | 3M Electrical
Data Sheet – FHF ExResistTel MB Explosion Proof Telephones
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