The pH measuring unit consists of: Pt100 temperature sensor, measuring preamplifier, pH electrode holder and protective tube. The whole unit is part of the TA 40 immersion assembly kit.
Technical data: (subject to change without notice)
Measuring range:
0...14pH
Temperature compensation:
Pt100 Cl.B
Input current:
75 fA typ.
Cable length:
up to 100m
Ratio Uin to Uout:
1:1
Operating voltage
24VDC +-10%
Current consumption
3 mA
Ambient temperature
0...70°C
From a cable length of 6 m shielded cable should be used. The shielding should be connected to the protective conductor on the control cabinet side.