Vers. No. 6.1
58 Released: 25/04/2017
4 Connecting the modules → Q.bloxx A104: Connecting sensors
Voltages which exceed the admissible limits produce incorrect
measurement data, because the inputs are protected against
overvoltages and limit the input voltage.
Fig. 4-41 A104, voltage measurement.
4.11.2 Thermocouple
For connecting thermocouples you need a special connecting
plug which contains the comparative measuring point (cold junc-
tion compensation) required for thermocouples. The plug can be
obtained under the designation
Q.bloxx Terminal CJC-A104 from
Gantner Instruments GmbH. You can connect the following types
of thermocouple: B, E, J, K, L, N, R, S, T and U.
Alternatively, you can also use two ther
mocouples or a reference
temperature source.
You will find information on the comparative measuring point and
on the measurement with a reference temperature source in
Section 6.6, Measuring with thermocouples, page 148.
Fig. 4-42 A104, measurement with thermocouple using Q.bloxx
Terminal CJC-A104.
3, 5, 7, 9 (+)
4, 6, 8, 10 (–)
4, 6, 8, 10 (–)
3, 5, 7, 9 (+)
Q.bloxx Terminal CJC
CJC–
CJC+
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