276285 / 949160310010
2021-05-06·BA00·III·en·00
Safety
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Termination board and
connecting cable for Zone 2
Series 9491
Ignition sparks
Ignition sparks can be generated during live working, when working with screws or routing
connections on a device that has not been fitted according to regulations. This may result in
explosions causing serious or even fatal injury.
Carry out all screw fastening processes carefully using the respectively specified
tightening torques.
Attach the warning sign supplied: "Warning: Do not separate terminals when energized
unless location is known to be non hazardous" near to the terminals.
Only connect or disconnect plug connectors if they are in a voltage-free condition or in a
safe, non-explosive atmosphere (hot work permit, gas warning device or when installed in
a non-hazardous area).
Only separate non-intrinsically safe circuits if they are in a voltage-free condition or in a
safe, non-explosive atmosphere (hot work permit, gas warning device or when installed in
a non-hazardous area).
Improper project engineering, mounting, installation, commissioning, maintenance or
cleaning
Basic work such as installation, commissioning, maintenance or cleaning of the device must
always be performed in accordance with the applicable national regulations of the country of
use and only by qualified persons. Otherwise, the explosion protection may be rendered
ineffective. This may result in explosions causing serious or even fatal injury.
Have the assembly, installation, commissioning and maintenance work performed by
qualified and authorised persons only (see chapter 3.2).
Observe the correct mounting position; see the "Mounting and installation" chapter.
Do not change or modify the device.
For use in Zone 2, install the device in a protective enclosure or cabinet that corresponds
to a recognised type of protection in accordance with IEC/EN 60079-0 and a degree of
protection of at least IP54 in accordance with IEC/EN 60529.
For use in Zone 22, install the device in a protective enclosure or cabinet that corresponds
to a recognised type of protection in accordance with IEC/EN 60079-31 and a degree of
protection of at least IP64 in accordance with IEC/EN 60529.
For use in a safe area, install the device in an environment according to IEC/EN 60664-1
with a degree of pollution of 2 (e.g. enclosure, cabinet).
Ensure that there is a distance of at least 50 mm (tight string length) between connecting
units of intrinsically safe and non-intrinsically safe electrical circuits.
Only connect compatible components (IS1+/IS1 Remote I/O system). When in doubt,
consult R. STAHL.
Repair work on the device must be performed only by R. STAHL.
Gently clean the device with a damp cloth only – do not use scratching, abrasive or
aggressive cleaning agents or solutions.
