Fitting and Installation
2.5. Terminal assignment
The technical data in the Certificate of Conformance must be observed at all
times. A CTR 210 may only be operated with the maximum values are
observed.
2.5.1. Power Supply 1
The power supply provides power for all the electronics, the first analogue
output and the digital inputs and outputs. The second power supply provides
power for the second analogue output.
Terminal 39 +
Terminal 40 -
U = 24 V DC ± 20%
Imax = 40 mA
2.5.2. Power Supply 2
The second power supply is necessary, if the second current output is used.
Terminal 17 +
Terminal 18 -
U = 24 V DC ± 20%
Imax = 40 mA
2.5.3. Analogue inputs
The CTR 210 has 3 analogue inputs (4 - 20 mA).
As standard, the analogue inputs are not voltage-free, i.e. the minus is at
instrument ground potential.
Terminal 1 + current input 1
Terminal 2 - current input 1
Imax = 25 mA
Load = 25 Ω
Terminal 4 + current input 2
Terminal 5 - current input 2
Imax = 25 mA
Load = 25 Ω
Terminal 6 + current input 3
Terminal 7 - current input 3
Imax = 25 mA
Load = 25 Ω
Failure: < 0,05 % from end value
7
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