Wiring Plan; Switch-On Phase; Maintenance And Fault Rectification; Maintenance - Vega WELL S 51 Manual De Instrucciones

4.3

Wiring plan

Direct connection
Abb. 16: Wire assignment, suspension cable
1 Blue (-): to voltage supply or to the processing
system
2 Brown (+): to voltage supply or to the processing
system
3 Shielding
4 Breather capillaries with filter element
Connection via VEGABOX 03
1
Abb. 17: Wiring plan VEGAWELL S 51 4 ... 20 mA,
4 ... 20 mA/HART
1 To the sensor
2 To voltage supply or processing system
3 Shielding
8)
Wire number Wire colour/Po-
larity
1 brown (+)
2 blue (-)
Shielding
4.4

Switch-on phase

After connecting VEGAWELL S 51 to power
supply or after a voltage recurrence, the instru-
ment carries out a self-check:
•
Internal check of the electronics
•
4 ... 20 mA output jumps to the fault signal
After the run-up period (specification see "
Technical data"), the instrument delivers an out-
put signal of 4 ... 20 mA. The value corresponds
to the actual level as well as the settings already
carried out, e.g. factory setting.
Connect shielding to ground terminal. Connect ground terminal on the outside of the housing to ground as
8)
prescribed. The two terminals are galvanically connected.
VEGAWELL S 51 •
5
4
5.1
1
2

Maintenance

If the device is used properly, no special mainte-
3 2
nance is required in normal operation.
Cleaning
The cleaning helps that the type label and mar-
kings on the instrument are visible.
Take note of the following:
•
•
5.2
-
2
Causes of malfunction
+
The device offers maximum reliability. Never-
3
theless, faults can occur during operation.
These may be caused by the following, e.g.:
•
•
•
•
Fault rectification
Terminal
The first measure to take is to check the output
signal. In many cases, the causes can be de-
1
termined this way and the faults quickly rectified.
2
24 hour service hotline
Grounding
Should these measures not be successful,
please call in urgent cases the VEGA service
hotline under the phone no. +49 1805 858550.
The hotline is manned 7 days a week round-
the-clock. Since we offer this service worldwide,
the support is only available in the English
language. The service is free, only standard call
charges are incurred.
Check the 4 ... 20 mA signal
Connect a multimeter in the suitable measuring
range according to the wiring plan.

5 Maintenance and fault rectification

Maintenance and fault
rectification
Maintenance
Use only cleaning agents which do not cor-
rode the housings, type label and seals
Use only cleaning methods corresponding
to the housing protection rating

Rectify faults

Sensor
Process
Voltage supply
Signal processing
19