Endress+Hauser AT1000 AT1, Руководство по эксплуатации

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Analog Transmitter AT1
Hauser 23
7.2 Troubleshooting
7.3 Return
The following procedures must be carried out before a transmitter is sent to Hauser e.g. for repair or
calibration:
• Remove all residue which may be present. Pay special attention to the gasket grooves and crevices where
fluid may be present. This is especially important if the fluid is dangerous to health, e.g. corrosive,
poisonous, carcinogenic, radioactive, etc.
• Always enclose a duly completed “Declaration of contamination” form (a copy of the “Declaration of
contamination is included at the end of this operating manual). Only then can Hauser transport,
examine and repair a returned device.
• Enclose special handling instructions if necessary, for example a safety data sheet as per EN 91/155/EEC.
Additionally specify:
• An exact description of the application.
• The chemical and physical characteristics of the product.
• A short description of the error that occurred (specify error code if possible)
• Operating time of the device.
7.4 Disposal
In case of disposal please separate the different components according to their material consistence.
7.5 Contact addresses of Hauser
The addresses of Hauser are given on the back cover of this operating manual. If you have any ques-
tions, please do not hesitate to contact your Hauser representative.
Error condition Cause Countermeasure
The display
shows no change
at all
1. Gear stabilizing screw is
loose
2. Wires are broken or
disconnection of wires
at the terminal
1. Tighten the stabilizing screw and replace in case of
press fitting fault
2. Inspect the wiring and the terminal connection and
firmly connect the wires at the end
Display level is
too high 1. Gear stabilizing screw is
loose
2. Increase in resistance
caused by friction in the
potentiometer
1. Tighten the stabilizing screw and reset the level
2. Replace the potentiometer
Display level is
too low
1. Gear stabilizing screw is
loose
1. Tighten the stabilizing screw and reset the level
Alarm does not
work or return
1. Stabilizing screw at
alarm cam or scale is
loose
2. Microswitch is not
working properly
3. Wires are broken and
Short circuit
1. Tighten the stabilizing screw and reset the level
2. Replace the microswitch
3. Redo wiring connection
7 Troubleshooting