Minimum Power Supply Voltage - KROHNE OPTIFLEX 8200 C Handbook

TECHNICAL DATA
8

8.3 Minimum power supply voltage

Use these graphs to find the minimum power supply voltage for a given current output load.
Non-Ex and Hazardous Location approved (Ex i / IS / NI) devices
Figure 8-3: Non-Ex and Hazardous Location approval (Ex i / IS / NI): minimum power supply voltage for an output of
22 mA (switch output - relay option: 30 mA) at the terminals
X: Power supply U [V DC]
Y: Current output load R
1 Output 1: 4...20 mA/HART
Output 2: 4...20 mA (NOTE: use a separate power supply to energize output 2)
2 Input 2: switch output - relay option
156
[Ω]
L
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