Gantner Q Series - Voltage; Current

Vers. No. 6.1
84 Released: 25/04/2017
4 Connecting the modules → Q.bloxx A123: Connecting sensors
Tip
Further information on transducers and sensors can also be
found in Chapter 6 ff. page 135.
4.19.1 Voltage
You can measure voltage differences of up to ±10 V. The voltage
level (the potential) may be up to 1200 V
DC
.
IMPORTANT
Voltage differences which exceed the admissible limits produce
incorrect measurement data, because the inputs are protected
against overvoltages and limit the input voltage.
Fig. 4-80 A123, voltage measurement.
4.19.2 Current
You need an (external) shunt resistance for the current measure-
ment, refer also to Section 6.5, page 147.
Fig. 4-81 A123, current measurement using an external shunt
resistance.
U
2, 7 (+)
4, 9 (–)
I
R
ext.
2, 7 (+)
4, 9 (–)