Fire Fighting Enterprises Vibration Switch: Explosion Proof User Manual
Page 4
Doc. No. 0115-03
Page 4 of 4
30.01.06
6. MAINTENANCE & REPAIR
No maintenance is required on the switch after installation and setting up. Periodic service functional testing is
recommended by reducing the set level to effect switch operation.
No repairs are to be undertaken – for replacement parts, contact manufacturer, see Page 1.
7. STORAGE
If switches are fitted to machinery without electrical connections, ensure the transit plastic cable entry sealing
plug remains fitted to prevent moisture entering the switch.
8. SPECIAL CONDITIONS FOR SAFE USE
1. When used within an ambient range of below – 20
o
C to –55
o
C maximum, these units are suitable
for low risk areas only (i.e. 4 Joules impact maximum)
2. Should Low temperature/High Mechanical Risk (7 Joule impact) be required, a protective shield
must be fitted over the switch to provide mechanical protection from impacts of 7 Joules minimum.
3. Except when shown in the certificate, as being internal wiring of apparatus, not more than one
single or multiple strand lead shall be connected into either side of any terminal, unless multiple
conductors have been joined in a suitable manner, e.g. Two conductors into a single insulated
crimped bootlace ferrule.
4. Leads connected to the terminals shall be insulated for the appropriate voltage and this insulation
shall extend to within 1mm of the metal of the terminal throat
5. All terminal screws, used and unused, shall be fully tightened down
6 The installer shall use an appropriate method to ensure a minimum ingress protection of IP54 or
higher IP rating to match that on the label on the cable entry, choosing an entry device in accordance
with a recognised Code of Practice/Installation Instructions.
7 Microswitches Model No’s. 07 – 1511 – 1540 and 07 – 1511 – 3540 are only suitable for circuits of
equal potential.
8 Should the Terminal Block be detached for ease of connection of external cabling during
installation, the Insulator (DPDT models) must be refitted to the original condition to ensure
compliance with electrical safety requirements.
Fire Fighting Enterprises Ltd.
9 Hunting Gate, Hitchin
Hertfordshire SG4 0TJ England
Tel: +44 (0) 845 4024242
Fax: +44 (0) 845 4024201
Email:
www.ffeuk.com