Siemens SITRANS LG250 Operating Instructions Manual page 64

Shorten cable/rod
64
1. Loosen the rod or cable with a fork wrench applied to the flat
surface, provide counterforce with another fork wrench.
2. Dry the process fitting and the upper rod end before unscrewing
the measuring rod.
3. Unscrew the loosened rod or cable manually.
4. Insert the new measuring rod carefully by hand with a screwing
motion into the opening of the process fitting.
5. Continue screwing in the rod manually into the opening of the pro-
cess fitting.
6. Exert counterforce with the second fork spanner and tighten the
rod or cable on the flat surfaces with the following torque.
Rod ø 8, cable ø 2 and 4: 6 Nm (4.43 lbf ft)
Rod ø 12: 10 Nm (7.37 lbf ft)
Fig. 26: Exchange cable or rod
Information:
Please maintain the specified torque so that the max. tensile strength
of the connection remains.
7. Enter new probe length and if necessary the new probe type and
then carry out a fresh adjustment (see "Setup procedure, Carry-
ing out min. adjustment - Carrying out max. adjustment").
The rod or cable of the probe can be shortened individually.
1. Mark the requested length with mounted measuring rod.
2. Cable: Loosen the pins on the gravity weight (hexagon 3)
3. Cable: remove the pins
4. Cable: Pull the cable out of the gravity weight
5. Shorten the cable/rod with a cut-off wheel or metal saw at the
marking. Take note of the specifications in the following illustration
when shortening the cable.
6. Cable with gravity weight: Shift the cable according to the drawing
into the gravity weight
SITRANS LG250 - Operating Instructions PBD-51041053