GEOTECH PVT DIRECT PUSH PIEZOMETER Manual
2015-11-11
15
Maintenance
Authorized Workshops
6.2
For support, calibration and repair please contact:
Ingenjörsfirman Geotech AB
Datavägen 53
SE- 436 32 Askim
SWEDEN
[email protected]
+46 31 289920
For customs reasons, please declare
serial number
of probes etcetera when sending equipment for
service.
Trouble Shooting
6.3
The trouble shooting table below is not complete, nor subject to any quality assurance, and thus pub-
lished as indication only. Please feel free to revert with additional questions and suggestions.
Issue:
Finding possible causes:
Actions:
No communication with the
piezometer.
Right COM port selected?
Select correct COM port.
Are crocodile clips in contact
with the wire?
Remove insulation from the wire and
check that the clip is correctly at-
tached.
Is the piezometer or cable
damaged?
Repair or replace.
Is the contact damaged?
Consult with Geotech.
Is the interface damaged?
Consult with Geotech.
Measured value reads 120
mH
2
O constantly.
Has the sensor maximum
pressure been exceeded?
The sensor membrane has been dam-
aged. Install a new piezometer, push-
ing slower while monitoring the pres-
sure real-time.
Has the piezometer been
exposed to hammering?
The sensor membrane has been dam-
aged. The piezometer must not be
hammered into the ground. Pre-drill of
the ground is too hard.
Has the saturated piezometer
been exposed to tempera-
tures below 3
o
C?
The sensor membrane has been dam-
aged. The water inside the de-aired
piezometer expands at it starts freez-
ing.
