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3 exchanging the electronics module – VEGA VEGAFLEX 67 (-20…+250°C) 4 … 20 mA_HART four-wire User Manual

Page 37

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Error

Cause

Rectification

O

perating voltage

too low or load
resistance too
high

C

heck, adapt if necessary

C

urrent signal

greater than 22 mA
or less than
3.6

mA

E

lectronics mo-

dule in the sensor
defective

E

xchange the instrument or send it in

for repair

I

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

circuits must be observed.

T

he indicating and adjustment modules indicates faults via error codes

and text messages. The following table describes the error codes with
status according to NE 107 and gives information on the causes of
failure and their removal:

Status accor-
ding to NE 107

Error code

Text message

Cause/Rectification

F

ailure

E

013

no measured value available

S

ensor in boot phase

no measured value available

S

ensor does not find an echo, e.g.

due to faulty installation or wrong
parameter adjustment

no measured value available

W

rong sensor length entered

E

017

A

djustment span too small

A

djustment not within the specifica-

tion. Carry out the adjustment again,
increasing the distance between
min. and max. adjustment

E

036

N

o operable software

F

ailed or interrupted software up-

date/Repeat software update

E

042

H

ardware error, electronics defec-

tive

E

xchange the instrument or send it

in for repair

E

043

H

ardware error, electronics defec-

tive

E

xchange the instrument or send it

in for repair

D

epending on the reason for the fault and the measures taken, the

steps described in chapter "Set up" may have to be carried out again.

8

.3 Exchanging the electronics module

I

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

Error messages via the
indicating and adjust-
ment module

Reaction after fault rec-
tification

VEGAFLEX

67 • 4 … 20

mA/HART - four-wire

37

8 M

aintenance and fault rectification

32308

-

EN

-120329