Balancing; Zero Balance; Zero Balance Or Adjustment (Without Electronics) - HBM WA 2 Notice De Montage

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4

Balancing

The transducer and plunger are arranged by Ident. No. to prevent transposi­
tion. Plungers and coil systems that have not been balanced with one another
can give rise to measurement errors in excess of 1%. Large measurement
errors can also occur, if the plunger is deformed or damaged. In case of
replacement, the complete transducer (plunger and transducer) needs to be
sent to HBM. The new core is adapted at HBM.
CAUTION
The transducer and plunger must not be transposed.

4.1 Zero balance

4.1.1 Zero balance or adjustment (without electronics)

Plunger (WA/...-L)
The plunger has a threaded piece for connecting it to the measurement
object.
D Insert the plunger into the transducer as far as the first marking ring (the
projecting part of the plunger corresponds to size C, see page 22
"Dimensions").
D for the WA2: push in the core until the 0 "1mV/V display. This requires an
amplifier providing tare and zero functions for zero balance.
The amplifier output signal is then zero balanced.
Plunger
É É É É É É É É É É É É É É É
É É É É É É É É É É É É É É É
Thread
Fig. 4.1: Plunger with markings (zero balance)
HBM
100% 50% 0%
Transducer
WA
A0546-8.5 en/de/fr