VEGA VEGAFLEX 83 4 … 20 mA_HART - four-wire Polished version - Manual (Page 65)

65
9 Diagnostics and service
VEGAFLEX 83 • 4 … 20 mA/HART - four-wire
41840-EN-130314
9.6 Exchange rod
The rod (meas. part) of the probe can be shortened, if necessary. To
loosen the meas. rod you need a fork spanner with spanner width 10.
Caution:
Remember that the polished rod of the food version is very sensitive
to damage and scratching. Use special tools in order to avoid damag-
ing the surface.
1. Loosen the rod by applying a fork spanner to the flat surfaces
(SW 10), provide counterforce manually on the process fitting
2. Twist off the loosened measuring rod manually
3. Put the attached new seal ring onto the thread.
4. Insert the new measuring rod carefully by hand with a twisting
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 manually and tighten the rod on the flat sur-
faces with a torque of 6 Nm (4.43 lbf ft).
Fig. 34: Exchange the rod
Information:
Please keep the stated torque so that the max. tensile strength
remains.
Exchange rod