Electrical Connection Of Measuring Amplifier With Amplifier Module; General Information - HBK U9C Montageanleitung

If a suitable amplifier is connected (e.g., QuantumX from HBK), then the amplifier
electronics will read the TEDS chip and parameterization will follow automatically,
without any intervention required by the user.
The chip content can be edited and modified with suitable hardware and software. The
Quantum Assistant, or DAQ CATMAN software from HBK, can be used for this purpose,
for example. Please pay attention to the operating manuals of these products.
8.2

Electrical connection of measuring amplifier with amplifier module

8.2.1

General information

If you have ordered the sensor with an inline amplifier, the inline amplifier and force
transducer form a measurement chain that cannot be separated. The measurement chain
is accordingly calibrated as a unit, meaning the test record (or calibration certificate)
directly indicates the relationship between the force (in Newtons) and the output signal
(in V or mA).
In order to guarantee a reliable measurement even under the influence of
electromagnetic fields, the housings of the inline amplifier and the sensor are connected
to the cable shield. This means that the sensor, cable and amplifier housing form a
Faraday cage. This concept is failsafe and highly insensitive to interference.
Note that the thread of the M12 device plug, by which you make the connection to the
next link in the measurement chain, is also electrically connected to the amplifier housing,
and so ultimately to the sensor housing.
If the housing of the inline amplifier and the sensor are at different electrical potentials,
compensating currents may flow through the cable shield and influence the measure­
ment. So make sure that all components are at the same electrical potential. If you are
daisy-chaining the shield of the cable connected to the M12 device plug, the next
component in the chain must also be set to the potential of the sensor and amplifier
housing. Use low-ohm connections for potential equalization.
A compressive force load will result in a rising current or voltage signal.
U9C
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ELECTRICAL CONNECTION