Instruction Manual
Tek-Bar 3120B
www.tek-trol.com
29
Technology Solutions
6.1.4
Depot Repair
Execute following steps before sending the device for depot repair:
•
Disconnect the transmitter carefully. Preserve all accessories and cables for
reassembling.
•
Remove the harmful residues such as inflammable, poisonous, cancer genic and
radioactive substances.
•
Repack the device in original packaging material provided at the time of delivery
and send for repair.
6.1.5
Discard Disposal
It is recommended to pass the instrument to specialized recycling companies rather
than local recycling points.
7
Troubleshooting
This section provides troubleshooting techniques for most common operating problems. When
device malfunction is suspected despite the absence of any diagnostic messages on the HHT, inspect
following points.
•
If measurement signal appears irregular, check whether the process pressure is within the
working range, or the abnormality lies in the measuring system, installation environment or
pressure transmitter. Once diagnosed take corresponding measures.
•
If no signal output or unchanged output signal on corresponding process pressure changes is
observed, then check the power supply polarity, open or short circuit. Check the parameters
like voltage, power and load resistance meet the normal working requirements. Also, ensure
there is no leakage or pressure-impulse line blockage and shut-off valve is closed.
•
If the output signal is large or outside the normal range, check whether the supply voltage,
power consumption, and load resistance meet the normal working requirements of pressure
transmitters. Verify measuring range settings and adjust the device calibration. Also, ensure
there is no leakage, pressure-impulse line blockage or rapid temperature fluctuations in the
installation and shut-off valve is closed.
