8
V1.0 July 2020
4.3
Inspection/functionality contd...
4.3.1 Vibrating wire transducer
CHECK the VW transducer readings against the factory
‘
Zero Readings
’
on arrival to
ensure they have not changed significantly due to damage during transportation. This is a
basic
‘
out of the box
’
functional check.
Prior to carrying out a reading
check, ensure that the load cells have been stored in a
reasonably stable temperature for at least 30 –
60
minutes.
To carry out the check, connect a Vibrating Wire readout to the bare cable ends (Red
connector to Red wire and Black connector to Black wire) –
The Green and White
connectors / wires are for the temperature sensor and are not
required for this checking exercise
-
see the readout manual
for connection guidance.
Record the values (and units) displayed on the readout together
with the load cell serial numbers.
The
“
CHECK
”
readings should coincide with the factory zero on
the calibration sheet (see the example calibration sheet in
Section 9) /
-
50 digits after barometric and temperature
corrections are made.
The elevation of the
Geosense
®
factory is +60 metres above sea level and barometric
pressures change with altitude by approximately 1.2kPa per 100 metres.
4.3.2 Pressure gauge/manometer
Check the gauge offset is at zero
4.4
Storage
All
HLC
-
6000 Series Hydraulic Anchor Load Cells
and associated equipment should be
stored in an environment that is protected from direct sunlight.
It is also recommended that cables be stored in a dry environment to prevent moisture
migrating along inside them in the unlikely event of prolonged submersion of exposed
conductors. The cables should also be protected from rodents and traffic.
The
‘
CHECK Readings WILL be affected by changes in
atmospheric pressure and temperature changes.
Calibration Sheets contain VITAL information.
They MUST be stored in a safe place.
Only COPIES of calibration certificates should be taken to site
The original certificates should be stored safely.
Содержание HLC 6000 Series
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