Indication Of The Function; Instrument Repair; Maintenance And Fault Rectification; Remove Interferences - Vega TRENN 149A Ex Instrucción De Servicio

connected HART sensors can be carried out
without interrupting the measuring circuit. The
resistor (250 Ohm) required for this purpose is
already integrated in VEGATRENN 149A Ex (only
in case of connection of O+H). The adjustment is
carried out via a Windows PC with a parameter
adjustment software such as e.g. PACTware™ and
respective DTM.

6.2 Indication of the function

The yellow LED in the front plate of VEGATRENN
149A Ex lights as soon as a signal conditioning
instrument is connected to the output.
1
0 + H
1 LED: indication of the function
2 HART communication sockets
7 Maintenance and fault
rectification
7.1 Maintenance
Der VEGATRENN 149A Ex bedarf bei bestim-
mungsgemäßer Verwendung im Normalbetrieb
keiner besonderen Wartung.

7.2 Remove interferences

Causes of malfunction
Das VEGATRENN 149A Ex bietet Ihnen ein
Höchstmaß an Funktionssicherheit. Dennoch
können während des Betriebes Störungen auftret-
en. Diese können z.B. folgende Ursachen haben:
VEGATRENN 149A Ex
on
2
CONNECT
149A Ex
0 -
0 +
Maintenance and fault rectification
Measured value of the sensor not correct
l
Voltage supply
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Interference on the cables
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Fault clearance
Die ersten Maßnahmen sind die Überprüfung des
Ein-/Ausgangssignals sowie die Spannungsver-
sorgung. In vielen Fällen lassen sich die Ursachen
auf diesem Wege feststellen und die Störungen so
beseitigen.
24 hour service hotline
However, should this 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.

7.3 Instrument repair

If a repair is necessary, please proceed as follows:
Im Internet können Sie auf unserer Homepage
www.vega.com unter: "Downloads - Formulare und
Zertifikate - Reparaturformular" ein Rücksende-
formular (23 KB) herunterladen.
By doing this you help us carry out the repair
quickly and without having to call for needed
information.
Print and fill out one form per instrument
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Clean the instrument and pack it damage-proof
l
Attach the completed form and probably a
l
safety data sheet on the outside of the pack-
aging.
Please ask the agency serving you for the
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address of your return shipment. You find the
respective agency on our website www.vega.
com under: "Company - VEGA worldwide"
8 Dismounting

8.1 Dismounting steps

Take note of chapters "Mounting" and "Connecting
to power supply" and carry out the listed steps in
reverse order.
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