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General
The electronic value limit switches are auxiliary switches for auxiliary voltage from 10 to 30 V DC, which are
used for direct control of PLC unit or other electronic instruments. Signalling takes place without time-delay
analogously to the movement of the actual value pointer.
Adjusting key
Mounting
Mounting has to be done according to the general technical regulations for pressure and temperature measu-
ring 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.
Electric connection
The electric connection should be performed only by qualified personnel. The terminal location and the switch
functions are indicated on the rating plate of the gauge. The earth terminal 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 personnel 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 ad-
justing 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 to 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:
Gauge
Model R, P
Model DM
Model B
Model F
Art.-N°.: 413074
Art.-N°.: 413077
Art.-N°.: 413088
Art.-N°.: 413089
Set pointer
Inductive sensor
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