221787 / 9160617310
2015-10-05·BA00·III·en·03
Safety notes
5
Transmitter Supply Unit Ex i
Series 9160
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3
Safety notes
3.1
Operating instructions storage
• Read the operating instructions carefully and store them at the mounting location of
the device.
• Observe applicable documents and operating instructions of the devices
to be connected.
3.2
Safe use
• Read and observe the safety notes in these operating instructions!
• Use the device in accordance with its intended and approved purpose only.
• We cannot be held liable for damage caused by incorrect or unauthorized use or by
non-compliance with these operating instructions.
• Before installation and commissioning, make sure that the device is not damaged.
• Work on the device (installation, maintenance, overhaul, repair) may only be carried
out by appropriately authorized and trained personnel.
• During installation and operation observe the information (characteristic values and
rated operating conditions) on the rating, data and information plates located on the
device.
• Always consult with R. STAHL Schaltgeräte GmbH in case of operating conditions
which deviate from the technical data.
• Observe the document "Cabinet installation guide" for engineering (download from
www.stahl-ex.com, Product documentation, subitem "Engineering").
• For SIL applications, the FMEDA report has to be observed.
• Install the device in Zones 2, 22 or outside of hazardous areas.
• When used in Zone 2 or 22, the device must be built into an enclosure which meets
the requirements of IEC/EN 60079-15 or IEC/EN 60079-31.
• When used in Zones 2, 22, the intrinsically safe devices of Zones 1, 0, 21 and 20 can
be connected to the intrinsically safe signal circuits.
• Connect the device only to equipment which does not carry voltages higher than
253 V AC (50 Hz).
• Circuits with type of protection 'Ex i' operated with circuits with other types of protection
can no longer be operated as circuits with type of protection 'Ex i' after that.
• The power supply of 24 V DC must be able to bridge brief AC power supply
interruptions of min. 20 ms in order to assure power failure bridging according
to EN 61326-3-2 and NE 21.
• Use suitable conductors and cable glands for use in ambient temperatures below
-20 °C.
3.3
Modifications and alterations
DANGER
Explosion hazard due to modifications and alterations to the device!
Non-compliance results in severe or fatal injuries.
• Do not modify or alter the device. No liability or warranty for damage
resulting from modifications and alterations.
