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3 exchanging the electronics module – VEGA VEGASON 65 4 … 20 mA_HART four-wire User Manual

Page 45

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C

urrent signal greater than 22 mA or less than 3.6 mA

l

E

lectronics module defective

à Exchange instrument or return instrument for repair

I

n Ex applications, the regulations for the wiring of intrinsically safe

circuits must be observed.

?

E

013

l

no measured value available

à sensor in boot phase
à Sensor does not find an echo, e.g. due to faulty installation or

wrong parameter adjustment

?

E

017

l

A

djustment span too small

à Carry out a fresh adjustment and increase the distance

between min. and max. adjustment

?

E

036

l

no operable sensor software

à Carry out a software update or send the instrument for repair

?

E

041

l

H

ardware error, electronics defective

à Exchange instrument or return instrument for repair

D

epending on the failure reason and measures taken, the steps

described in chapter "Set up" must be carried out again, if necessary.

8.3 Exchanging the electronics module

I

f the electronics module is defective, it can be replaced by the user.

I

n Ex applications only one instrument and one electronics module with

respective Ex approval may be used.

I

f there is no electronics module available on site, one can be ordered

from the VEGA agency serving you.

T

he settings of the sensor must be downloaded into the new

electronics module. This can be done:

l

A

t the factory by VEGA

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O

r on site by the user

I

n both cases, the sensor serial number is needed. The serial numbers

are stated on the type label of the instrument, inside the housing or on
the delivery note.

Fault messages via the
indicating/adjustment
module

Reaction after fault rec-
tification

Sensor serial number

VEGASON

65 • 4 … 20

mA/HART four-wire

45

8 M

aintenance and fault rectification

28782

-

EN

-081127