Fitting and Installation2.5. Terminal assignmentThe technical data in the Certificate of Conformance must be observed at alltimes. A CTR 210 may only be operated with the maximum values areobserved.2.5.1. Power Supply 1The power supply provides power for all the electronics, the first analogueoutput and the digital inputs and outputs. The second power supply providespower for the second analogue output.Terminal 39 +Terminal 40 -U = 24 V DC ± 20%Imax = 40 mA2.5.2. Power Supply 2The second power supply is necessary, if the second current output is used.Terminal 17 +Terminal 18 -U = 24 V DC ± 20%Imax = 40 mA2.5.3. Analogue inputsThe CTR 210 has 3 analogue inputs (4 - 20 mA).As standard, the analogue inputs are not voltage-free, i.e. the minus is atinstrument ground potential.Terminal 1 + current input 1Terminal 2 - current input 1Imax = 25 mALoad = 25 ΩTerminal 4 + current input 2Terminal 5 - current input 2Imax = 25 mALoad = 25 ΩTerminal 6 + current input 3Terminal 7 - current input 3Imax = 25 mALoad = 25 ΩFailure: < 0,05 % from end value7