Stahl 8402/6 Series, Operating Instructions Manual

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2018-08-07·BA00·III·en·02
Safety
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Ammeters and voltmeters
Series 8402/6, Series 8403/6, Series 8404/6,
Series 8405/6, Series 8406/6, Series 8407/6
3 Safety
The device has been manufactured to the state of the art while observing recognised
safety-related rules. When using the device, it is nevertheless possible for hazards to occur
to life and limb of the user or third parties or for the device, environment or material assets to
be compromised.

Use the device only
- if it is not damaged
- as intended, while remaining aware of safety and dangers
- in accordance with these operating instructions.
3.1 Intended Use
Series 840./6 voltmeters and ammeters (moving iron and moving coil measuring instrument
with an accuracy of 2.5) are explosion-protected electrical components for measuring and
displaying current and voltage values.
They are approved for use in hazardous areas of Zones 1 and 21 and in safe areas.
In order to be used in hazardous areas, they must be installed in an enclosure or cabinet
with a degree of protection corresponding to IEC/EN 60079-0 and class of IP54 or higher.
3.2 Personnel Qualification
Qualified specialist personnel are required to perform the activities described in these
operating instructions. This primarily applies to work in the following areas:
• Product selection, project engineering and modification
• Mounting/dismounting the device
• Installation
• Commissioning
• Maintenance, repair, cleaning
Specialists who perform these tasks must have a level of knowledge that meets applicable
national standards and regulations.
Additional knowledge is required for tasks in hazardous areas! R. STAHL recommends
having a level of knowledge equal to that described in the following standards:
• IEC/EN 60079-14 (Electrical installations design, selection and erection)
• IEC/EN 60079-17 (Inspection and maintenance of electrical installations)
• IEC/EN 60079-19 (Equipment repair, overhaul and reclamation)