6
4 Mounting
Electronics module • VEGADIS 81
49685-EN-150114
4 Mounting
4.1 General instructions
If the electronics module is defective, it can be replaced by the user.
In Ex applications, only instruments and electronics modules with ap-
propriate Ex approval may be used.
If there is no electronics module available on site, one can be ordered
from the VEGA agency serving you.
First of all check if you are using the suitable electronics module.
Compare the new electronics module with the existing one. The
specifications on the type label must correspond. This applies mainly
to instruments with approvals.
Warning:
Switch off voltage supply before starting the installation procedure.
The replacement electronics may only be installed when the sensor is
in a de-energised state. Non-observance will damage the electron-
ics!
4.2 Installation procedure
The electronics module is located in the electronics compartment of
VEGADIS 81. The below illustration shows the position of the elec-
tronics compartment in an external housing.
1
Fig. 1: Housing
1 Position of the electronics compartment in the housing
Proceed as follows:
1. Switch off power supply of the sensor
2. Unscrew the lid of the electronics compartment VEGADIS 81
3. Detach terminal block according to the operating instructions of
VEGADIS 81
4. Loosen the two holding screws with a screwdriver (Torx size T 10
or slotted screwdriver size 4)
Assignment
Installation procedure
