HBM MX440B - Active Transducer Connection

Modules and transducers
Quantum
X
I3031-14.0 HBM: public 89
If there are differences in potential in the measuring sys
tem, a potential compensating line must be laid (refer
ence value: highly flexible stranded wire, wire cross sec
tion 10mm
2
). Signal and data leads must be set up
physically separated from current-carrying power lines.
Ideally, cable ducts made of sheet metal with an internal
partition should be used. Signal ground, ground and
shielding must be laid out as separated as possible.
In order to minimize the effect of electromagnetic interfer
ence and differences in potential, the signal ground and
ground (or shielding) are designed to be physically separ
ate in the HBM devices. The grounded supply connector
or a separate ground potential lead should serve as the
ground connection, as is the case for potential compens
ation in buildings, for example. The ground cable should
not be connected to a radiator body, water pipe or similar
objects.
8.1.2 Active transducer connection
Some modules can supply active transducers with a sup
ply voltage of 524 V.
When using the adjustable transducer excitation, elec
trical isolation from the supply voltage of the amplifier is
not required.
The maximum permissible power consumption is
700 mW per channel, but no more than 2 W total. If the
power consumption is more than 700 mW on one chan
nel, the transducer excitation of this channel will switch
off. If the power consumption exceeds a total of 2 W, the
device may switch off.