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VEGA VEGAPULS 67 (≥ 2.0.0 - ≤ 3.8) 4 … 20 mA_HART four-wire User Manual

Page 44

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Error

Cause

Removal

4 … 20

mA signal

not stable

L

evel fluctuations Set damping via the indicating and

adjustment module

4 … 20

mA signal

missing

E

lectrical con-

nection faulty

C

heck connection according to chap-

ter "

Connection steps

"

and if ne-

cessary, correct according to chapter
"

Wiring plan

"

V

oltage supply

missing

C

heck cables for breaks; repair if

necessary

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

O

scillator 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.

?

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 instrument for repair

?

E

041, E042, E043

l

H

ardware error, electronics defective

à Exchange the instrument or send it in 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.

Error messages via the
indicating and adjust-
ment module

Reaction after fault rec-
tification

44

VEGAPULS

67 • 4 … 20

mA/HART four-wire

8 M

aintenance and fault rectification

32939

-EN

-100514