Limit Signal Settings - Siemens SITRANS F Operating Instructions Manual

Commissioning

6.2 Limit signal settings

6.2 Limit signal settings
Limit switches (inductive contact)
The limit switches can be set over the entire measuring range by varying the position of the
limit pointers.
Unless otherwise desired by the customer, the factory set value for the switching point is for
version with one limit switch about 40% of URV (Upper Range Value) and for devices with
two limit switches about 20%/80% of URV.
To set the limit switches at the desired position, observe the following steps:
1. Loosen the two fixing screws
2. Move the pointer to the desired position.
3. Tighten the screws to fix the pointer.
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CAUTION
Figure 6-1 Adjustment of the switching point (limit switch)
CAUTION
The applied limit switches SJ 3.5 N are normally closed contacts according to NAMUR
recommendation NE21. The desired switching function of the limit switch must be
realized by the relay contact of the external isolation amplifier (changeover contact).
②
before moving the pointer
Operating Instructions, 02/2013, A5E03821131-01
①
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SITRANS FVA250