BELL No. 80


Bell No. 80 has a metal case (later variants have a plastic case - which looks metallic) which must be connected to a protective earth if mounted within normal reach.  Cabling should be disconnected at distant end before approaching a Bell 80D on installation or maintenance visits.

DESCRIPTION
Bell No. 80A
Superseded Bell No. 67. Magneto (new style ringer), for indoor and outdoor use on 17 or 25 Hz with 120mm (Bell-gong No. 27A) and 150mm (Bell-gong No. 26A) gongs.

Bell No. 80B
Superseded Bell No. 80A.  Similar to Bell No. 80A but with redesigned method of fixing.

Bell No. 80D
High Impedance 'under-dome' (150mm gong) loud bell, available on rental terms only.

All the above calling devices are line powered only.

Originally made for BT by Mekelek Ltd and then by Gemini Connections Ltd.

APPROVAL STATUS
Bell 80D - S/100013/D/021382.

PLANNING
Bell 80D - for interior or sheltered exterior use, up to 105 dB output and requires cabling to PST system.

Measures approx. 175mm x 150mm x 115mm, weight 1324 grams.

Requires 2 rust-resistant No.10 round head screwsand should be mounted 'high' for maximum range.  Cable entry grommet may be removed to provide 20 mm conduit entry.

REN = 1

INSTALLATION/COMMISSIONING
When wall mounted, the Bell 80D cable entry should face downwards. Where necessary Bell 80D may be earthed by secure connection to conduit or earthing bush fitted to cable entry.

ADDITIONAL INFORMATION
Where the addition of bells tone or callers results in ringing difficulties because the system is approaching or exceeding REN limitations or capacity of PBX Night bell port, it may be necessary to fit a 'Convertor Ringing 15' to boost ringing output.

 
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Last revised: May 01, 2020

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