3. Maintenance
1. It is essential that all RB Bulkhead units are maintained in accordance with the
requirements of the EN60079-17 standard: (Electrical apparatus for explosive gas
atmospheres – other than mines).
2.
IMPORTANT
. No modifications are permitted to the unit, all spare parts must
be purchased from the manufacturer, unauthorized modifications or spare
parts will invalidate certification and make the equipment dangerous.
3. Isolate the RB Bulkhead from the mains supply and allow to cool before
carrying out any maintenance work.
•
For Emergency variants, battery must be isolated/ connected when a
hazardous environment is NOT present prior to carrying out any maintenance
work.
4. In the unlikely event of a number of LED’s failing, the light engine assembly must
be replaced. This is achieved by loosening front cover bolts, disconnecting the
white LED cables to power supply, remove four M6 bolts from rear of light engine
and pull the light engine assembly clear. Re fitting a light engine is a reversal of
the above procedure.
5. The unit has one independent power supply, in the event that the power
supply needs to be replaced the cables to the LED and mains terminal block will
need to be disconnected, the four M6 bolts released, then the power supply
can then be removed. Fitting a new power supply is a reversal of the above
procedure.
6. Disposal of packaging, RB unit and old LED assemblies should be carried out in
accordance with national regulations.
PROTECTION/CERTIFICATION
CML13ATEX3007, IEC Ex CML14.0001 & CML21UKEX3099 II 2 GD Ex eb mb
IIC T4 Gb
Ta -52°C to +55°C (standard variants)
II 2 GD Ex eb mb IIC T4 Gb
Ta -20°C to +46°C (emergency variants)
Ex tb IIIC T98°C Db
IP66 & IP67 Ta = -52°C to +55°C
110V-254V AC or 18-48V AC/18-69V DC
CML 17ATEX4231, IEC Ex CML17.0135 & CML21UKEX4106 II 3 GD Ex ec mc
IIC T4 Gc
Ta -50°C to +55°C (standard variants)
II 3 GD Ex ec mc IIC T4 Gc
Ta -20°C to +55°C (emergency variants)
Ex tc IIIC T98°C Dc
IP66 & IP67 Ta = -50°C to +55°C
110V-254V AC or 18-48V AC/18-69V DC
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SUBJECT TO CHANGE WITHOUT NOTICE
MADE IN
UK
