Electrical Connection
P8AP
A2079-4.0
13
leads of the transducers must be connected to the cor-
responding excitation voltage leads: Marking (+) with (+)
and marking (-) with (-), see
. This measure also
reduces the cable resistance of the excitation voltage
leads. However, there will be a voltage loss on the supply
leads due to the cable resistance that is still present and
not compensated for by the six-wire configuration. A
large part of this loss can be eliminated by a calibration,
however, the temperature-dependent part remains.
Important
The TC
s
value given for the transducer in the specifica
tions therefore does not apply for the cable and trans
ducer combination when connection is in a four-wire con
figuration, where the cable percentage must be added.
6.3
Shortening the cable
If the transducer is connected to an amplifier in a six-wire
configuration, the transducer cable can be shortened as
required, without adversely affecting the measurement
accuracy.
6.4
Extending the cable
Only use shielded, low-capacitance measurement cables
for extension. Ensure that connection is perfect, with a
low contact resistance.
The cable of a six-wire transducer can be extended with
a cable of the same type.
