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General
The incorporated inductive limit value switches are non-contact sensors according to EN 50227 and
NAMUR and should be used only with a control unit for hazardous areas of zone 1 in accordance
to guidelines (ATEX) 94/9EC. Signalling take place without time-delay analogously to the movement
of actual value pointer.
Mounting
See instruction manual for measuring instruments
Model R,P
Model DM
Model B Art.-N°.: 413088
Model F Art.-N°.: 413089
Mounting has to be done according to the general technical regulations for pressure and temperature
measuring gauges (EN 837-2 or EN 13190). Excessive vibrations can be detrimental to function and service
life of the instrument. In consequence, the location should be exempt from vibration.
Electrical connection
The electrical connection should be performed only by qualified personnel. The terminal location and
the switch functions are indecated on the type plate of the gauge. The terminal earth as well as the
connectors (1...6) are marked accordingly.
Safety remarks
When installing, commissioning and operating these instruments, the national safety regulations
have to be observed. Always disconnect voltage source and unit when working. Skilled personal only
should be allowed to work with these instruments.
Adjustment of the set pointer
The adjustment of the set pointer is made in the adjusting lock of the window by means of the
adjusting key supplied. The set pointers of the limit value switches are adjustable over the whole
scale range.
Maintenance
The gauges are maintenance free. Indication and switching functions should be checked about one
or two times a year. When checking the indication and the switching functions, the gauge has be
separated from the process and a pressure / temperature standard has to be applied. Repair can
exclusively be carried out at the factory.
Notice:
For the mounting of the measuring gauges onto the pressure / temperature tapping point, please
refer to the instruction manual.
Adjusting key
Art.-N°.: 413074
Art.-N°.: 413077
Set pointer
Inductive sensor
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