User's Manual

TECHNICAL DATA 8
53
OPTIWAVE 1010
www.krohne.com09/2014 - 4003537401 - MA OPTIWAVE 1010 R01 en
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) devices
Figure 8-2: 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 8-3: 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]