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2 Instructions for use of the measuring amplifier
Notice:
The parameterizations, further information concerning the scaling as well as the customized
analogue output can be found on the additional sheet "Device-Configuration".
Since this amplifier is a highly sensitive measurement technology
product, it must be used for its intended use as well as the
described operating conditions only. Initial start-up and changes in
setup and settings must be done by qualified personnel only. To
prevent interventions / modifications made by unauthorized
personnel, suitable measures must be taken. Both function and
calibration must be checked regularly.
Notice:
To avoid possible interferences, it is recommended to
install the amplifier with at least 20 mm distance to other
electronic devices.
The amplifier is contained in a plastic housing (IP20) designed for
DIN top hat rail montage. The electrical connections are made via
screw-clamps and the sensor may be connected in 4 or 6-wire technology.
The amplifier must be connected to clean earth-potential. To avoid possible potential equalization
currents over the shield of the cable to the following evaluation unit, this shield should be connected
over a suitable capacitor (10nF/200V).
Overall the shield connections must be done properly to EMC-
standards (as short as possible with large wire cross-section)
and connected to a central point (star grounding). In order to
not increase the interference sensitivity of the amplifier, all
cables should be kept as short as possible and should not be
extended. Possible cable-bound interferences must be blocked
very near the cable ends (evaluation unit) by suitable
measures.
To increase immunity to interferences (i.e. noise) the wiring
must be put through the delivered ferrites. Shielded cables,
preferably twisted in pairs should be used only. The EMC-
installation instructions must be complied with. All connection
cables and the amplifier must not be installed in proximity to disturbance emitting devices or cables.
The amplifier must be operated with a separate power source used for measurement devices only.
Notice:
Changes of the amplifier of any kind demand for the explicit approval of Althen Mess- &
Sensortechnik GmbH. Changes of any kind done without that approval exclude all possible warranty
and/or liability of Althen Mess- & Sensortechnik GmbH.
