Vega VEGAFLEX FX-E.80H, Operating Instructions Manual

7

4 Mounting

Electronics module • VEGAFLEX 80 series

43656-EN-170531

4 Mounting

4.1  General instructions

We recommended installing the replacement electronics with the 

instrument dismounted and brought to a suitable place, e.g. a work-

shop. If it is not possible to dismount the instrument, the electronics 

module can also be installed on site at the measuring point.

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!

It is absolutely necessary that the following points are observed with 

sensors with Ex approval:
For sensors with Ex approval, make sure that the replacement elec-

tronics module has the same designation as the exchanged electron-

ics module.
For example, an electronics module with a hardware version ≥ 2.0.0 

must be only installed in a sensor with hardware version ≥ 2.0.0.

4.2  Mounting preparations

The electronics modules are mounted in the electronics compartment 

and adapted to the respective sensor. First of all, check by means of 

the following lists if you are using a suitable electronics module.

• 

FX-E.80H for version 4 … 20 mA/HART (two-wire/four-wire/Mod-

bus)

• 

FX-E.80A for version 4 … 20 mA/HART with SIL qualification

• 

FX-E.80P for version Profibus PA

• 

FX-E.80F for version Foundation Fieldbus

With SIL qualified instrument, only a respective electronics module 

with SIL qualification must be used.
Electronics modules for SIL qualified instruments can only be ordered 

by stating the sensor serial number. Have the sensor serial number 

ready when ordering.

4.3  Installation procedure

1

Fig. 1: Single chamber housing
1  Position electronics compartment/Electronics module

Safety during mounting

Ex approval

Assignment