Safety Instructions; Conformity To Standards - Stahl 9170/*0 Betriebsanleitung

english
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Safety instructions

The most important safety instructions are summarised in this chapter. It is intended to
supplement the relevant regulations which must be studied by the personnel responsible.
When working in hazardous areas, the safety of personnel and plant depends on
complying with all relevant safety regulations. Assembly and maintenance staff working on
installations therefore have a particular responsibility. The precondition for this is an
accurate knowledge of the applicable regulations and provisions.
When installing and operating the device, the following are to be observed:

The national installation and assembly regulations (e.g. EN 60079-14) apply.

The switching repeater is to be installed outside of hazardous areas.

Type 9170/*0-*0-11; 9170/*0-*1-11 and 9170/*0-*4-11 switching repeaters are also
approved for operation in Zone 2 and Zone 22 hazardous areas.

In hazardous areas (Zone 2 or 22), the device must be installed in an enclosure which
fulfils the requirements of IEC/EN 60079-15 or IEC/EN 60079-31.

If installed in Zone 2 and Zone 22, devices connected to the intrinsically safe input
circuits of Zone 1, 0, 21 and 20 may be connected.

The switching repeaters may only be connected to devices which will not be subjected
to voltages higher than AC 253 V (50 Hz).

The safe maximum values of the connected field device(s) must correspond to the
values of the data sheet or the EC-type examination certificate.

Interconnecting several active devices in an intrinsic safety circuit may result in other
safe maximum values. This could endanger the intrinsic safety!

National safety and accident prevention regulations.

Generally recognised technical regulations.

Safety guidelines in these operating instructions.

Any damage can compromise and even neutralise the explosion protection.
Use the device in accordance with the regulations and for its intended purpose only (see
"Function").
Incorrect or impermissible use or non-compliance with these instructions invalidates our
warranty provision.
No changes to the devices or components impairing their explosion protection are
permitted.
Further, the device may only be fitted if it is undamaged, dry and clean.
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Conformity to standards

The information about the conformity to standards can be found in the manufacturer's
declaration of conformity in the appendix of this document.
The current EC-Type Examination Certificate can be downloaded from the Internet
www.stahl-ex.com .
Operating Instructions
Switching Repeater Type 9170
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