KROHNE OPTIFLEX 2200 C_F Quickstart EN - Manual (Page 39)

ELECTRICAL CONNECTIONS
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OPTIFLEX 2200 C/F
www.krohne.com 08/2013 - 4000622103 - QS OPTIFLEX 2200 R03 en
3.4 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) devices
Figure 3-8: Minimum power supply voltage for an output of 22 mA at the terminal (Non-Ex and Hazardous Location
approval (Ex i / IS))
X: Power supply U [VDC]
Y: Current output load R
L
[Ω]
Hazardous Location (Ex d / XP/NI) approved devices
Figure 3-9: Minimum power supply voltage for an output of 22 mA at the terminal (Hazardous Location approval (Ex d /
XP/NI))
X: Power supply U [VDC]
Y: Current output load R
L
[Ω]
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
0
100
200
300
400
500
600
700
800
900
1000