Troubleshooting Promag 53 PROFIBUS DP/PA
154 Endress+Hauser
Removing the electrode Installing the electrode
1st Loosen the Allen screw (1) and remove the cover. 1st Insert the new electrode (5) into the retaining
cylinder (7) from below. Make sure that the seals
at the tip of the electrode are clean.
2nd Remove the electrode cable (2) secured to handle
(3).
2nd Mount the handle (2) on the electrode and insert
the locking pin (8) to secure it in position.
"
Caution!
Make sure that coil spring (11) is inserted. This is
essential to ensure correct electrical contact and
correct measuring signals.
3rd Loosen knurled nut (4) by hand. This knurled nut
acts as a locknut.
3rd Pull the electrode back until the tip of the
electrode no longer protrudes from retaining
cylinder (7).
4th Remove the electrode (5) by turning the handle
(2). The electrode can now be pulled out of the
retaining cylinder (7) as far as a defined stop.
#
Warning!
Risk of injury. Under process conditions (pressure
in the piping system) the electrode can recoil
suddenly against its stop. Apply counter-pressure
while releasing the electrode.
4th Screw the retaining cylinder (7) onto the ball-
valve housing (9) and tighten it by hand. The seal
(10) on the cylinder must be correctly seated and
clean.
!
Note!
Make sure that the rubber hoses on the retaining
cylinder (7) and stop cock (6) are of the same
color (red or blue).
5. Close the stop cock (6) after pulling out the
electrode as far as it will go.
#
Warning!
Do not subsequently open the stop cock, in order
to prevent fluid escaping.
5. Open the stop cock (6) and turn the handle (2) to
screw the electrode all the way into the retaining
cylinder.
6. Remove the electrode complete with
retaining cylinder (7).
6. Screw the knurled nut (4) onto the
retaining cylinder. This firmly locates the
electrode in position.
7. Remove the handle (2) from the electrode (5) by
pressing out the locking pin (8). Take care not to
lose the coil spring (11).
7. Use the Allen screw to secure the electrode cable
(3) to the handle (2).
"
Caution!
Make sure that the machine screw securing the
electrode cable is firmly tightened. This is
essential to ensure correct electrical contact and
correct measuring signals.
8. Remove the old electrode and insert the new
electrode. Replacement electrodes can be ordered
separately from Endress+Hauser.
8. Reinstall the cover and tighten the Allen screw
(1).
To Next Page
Loading...
