171456 / 9165612310
2021‐07‐16·BA00·III·en·07
Safety Notes
5
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Isolating Repeater Field Circuit Ex i
Series 9165
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
Before mounting
• Read and observe the safety notes in these operating instructions!
• Ensure that the contents of these operating instructions are fully understood
by the personnel in charge.
• Use the device in accordance with its intended and approved purpose only.
• Always consult with R. STAHL Schaltgeräte GmbH if using the device under operating
conditions which are not covered by the technical data.
• Observe the document "Cabinet installation guide" for engineering
(download from r-stahl.com, product documentation, subitem "Engineering").
• Before installation, make sure that the device is not damaged.
• We cannot be held liable for damage at the device caused by incorrect or unauthorized
use or non-compliance with these operating instructions.
• For SIL applications, refer to the FMEDA Report SIL STAHL 04/04-03 R004.
• The power supply of 24 V DC must be able to bridge brief AC power supply
interruptions of at least 20 ms in order to assure power failure bridging according
to EN 61326-3-2 and NE 21.
For assembly and installation
• Observe national assembly and installation regulations (e.g. IEC/EN 60079-14).
• Observe national safety and accident prevention regulations.
• During installation and operation, observe the information (characteristic values
and rated operating conditions) on the rating, data and information plates located
on the device.
• Install the device in Zones 2 or outside of hazardous areas.
• If used in Zone 2, the device must be installed in an enclosure that meets the
requirements of IEC/EN 60079-15.
• Electric circuits with the "Ex i" type of protection operated with circuits with other
types of protection can no longer be operated as circuits with the "Ex i"
type of protection after this stage.
• When used in Zones 2, 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).
• Connect the device only to intrinsically safe terminals.
• The safety characteristic values of the connected field devices must correspond
to the specifications in the data sheet or in the EC Type Examination Certificate.
• Interconnecting several devices in a single intrinsically safe circuit can result in
different safety characteristic values. This may impair intrinsic safety!
