Exchanging The Electronics Module - Vega VEGAWAVE 62 Operating Instructions Manual

Checking the switching
signal
Error
VEGAWAVE 62 signals
"covered" without being
submerged (overfill pro-
tection)
VEGAWAVE 62 signals
"uncovered" when being
submerged (dry run pro-
tection)
Signal lamp flashes red
Reaction after fault recti-
fication
VEGAWAVE 62 • Two-wire 8/16 mA
Cause
Operating voltage too low
Electronics defective
Unfavourable installation
location
Buildup on the vibrating el-
ement
Wrong mode selected
Error on the vibrating el-
ement
Interference on the elec-
tronics module
instrument defective
Depending on the reason for the fault and the measures taken, the
steps described in chapter "Set up" may have to be carried out again.
7.3

Exchanging the electronics module

In general, all electronics modules of series WE60 can be inter-
changed. If you want to use an electronics module with a differ-
ent signal output, you can download the corresponding operating
instructions manual from our homepage under Downloads.
With Ex-d instruments, the housing cover may only be opened if there
is no explosive atmosphere present.
Proceed as follows:
1. Switch off voltage supply
2. Unscrew the housing lid
3. Lift the opening levers of the terminals with a screwdriver
4. Pull the connection cables out of the terminals
5. Loosen the two screws with a screw driver (Torx size T10 or slot
4)
7 Maintenance and fault rectification
Rectification
Check operating voltage
Press the mode switch. If the instrument then changes
the mode, the vibrating element may be covered with
buildup or mechanically damaged. Should the switch-
ing function in the correct mode still be faulty, return the
instrument for repair.
Press the mode switch. If the instrument then does not
change the mode, the electronics module may be de-
fective. Exchange the electronics module.
Mount the instrument at a location in the vessel where
no dead zones or mounds can form.
Check the vibrating element and the sensor for buildup
and remove the buildup if there is any.
Set the mode switch on VEGAWAVE 62 to "max". Set
the correct mode on the signal conditioning instrument
(A: overfill protection; B: dry run protection).
Check if the vibrating element is damaged or extreme-
ly corroded.
Exchanging the electronics module
Exchange the instrument or send it in for repair
27