Vega VEGAPULS 61 (≥ 2.0.0 - ≤ 3.8) 4 … 20 mA__HART two- Bedienungsanleitung PDF herunterladen (Seite 50)

8 Maintenance and fault rectiﬁcation

8.1 Maintena

nce

When used as directed in normal operation, VEGAPULS 61 is

completely maintenance free.

8.2 Rectify malfunctions

The operator of the system is responsible for taking suitable measures

to remove interferences.

VEGAPULS 61 oﬀers maximum reliability. Nevertheless, faults can

occur during operation. These may be caused by the following, e.g.:

l Sensor

l Process

l Voltage supply

l Signal processing

The ﬁrst measures to be taken are to check the output signals as well

as to evaluate the error messages via the indicating and adjustment

module. The procedure is described below. Further comprehensive

diagnostics can be carried out on a PC with the software PACTware

and the suitable DTM. In many cases, the causes can be determined

this way and faults rectiﬁed.

However, should these measures not be successful, call the VEGA

service hotline in urgent cases under the phone no. +49 1805 858550.

The hotline is available to you 7 days a week round-the-clock. Since

we oﬀer this service world-wide, the support is only available in the

English language. The service is free of charge, only the standard

telephone costs will be charged.

Connect a handmultimeter in the suitable measuring range according

to the wiring plan. The following table describes possible errors in the

current signal and helps to remove them:

Error Cause Removal

4 … 20 mA signal

not stable

Level ﬂuctuations Set damping via the indicating and

adjustment module

4 … 20 mA signal

missing

Electrical con-

nection faulty

Check connection according to chap-

ter "Connection steps" and if ne-

cessary, correct according to chapter

"Wiring plan"

Reaction when malfunc-

tions occur

Causes of malfunction

Fault rectiﬁcation

24 hour service hotline

Checking the 4 … 20 mA

signal

50 VEGAPULS 61 • 4 … 20 mA/HAR

T two-wire

8 Maintenance and fault rectiﬁcati

28434-EN-100426

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