Troubleshooting; Removal From Operation, Storage, Disposal; Removal From Operation - Mettler Toledo InPro 7000-VP Series Bedienungsanleitung

InPro 7000-VP Series
4.3

Troubleshooting

Error
No signal on display
No temperature signal
Incorrect or unstable
measurement reading
5

Removal from operation, storage, disposal

5.1

Removal from operation

The sensor is only conditionally subject to aging. When used as intended
and appropriately maintained and serviced, the lifetime of the sensor can
extend to several years.
Before removing the sensor from the process/process adapter, it must be
ensured that the process pressure has been reduced to a safe level and
the process temperature has lowered to a safe range. Any escape of hot
process medium under pressure can cause damage to material/equipment
or injury to persons.
After removal from the process the sensor should first be flushed with
distilled water.
If the sensor incurs a defect, it can not be repaired and must be disposed
under observance of prevailing local regulations.
© 11 / 13 Mettler-Toledo AG, CH - 8606 Greifensee
Printed in USA
Possible cause
Electrical connections
either missing or
incorrectly in place.
Sensor is not in contact
with the sample medium
Temperature probe is
not connected
Transmitter does not support
Pt1000 RTD
Sensor is contaminated/
fouled
Sensor is installed too
close to pipe wall
Corrective action
Check all connections
and associated cabling
Check installation
for air pockets
Check all connections
and associated cabling
Replacement of transmitter
or sensor necessary
Clean the sensor
(electrodes)
Ensure minimum distance
of 0.6 cm ( / ") between
1
4
sensor tip and pipe wall
is maintained
InPro 7000-VP Series
52 002 091
17