User Manual

TECHNICAL DATA 8
95
OPTIWAVE 7400-24 C
www.krohne.com12/2015 - 4004901901 - MA OPTIWAVE7400-24 R01 fr
8.3 Minimum power supply voltage
Use these graphs to find the minimum power supply voltage for a given current output load.
Construction code Option: NACE MR 0175 / MR 0103 / ISO 15156
1 The device has a distance piece if it has the flange options that follow: DN100 PN100, DN150 PN63 or PN100, DN200 PN40, 6¨ in 300 lb,
3¨...4¨ in 600 lb, 3¨...4¨ in 900 lb, and 1½¨...2¨ in 900 lb or 1500 lb
2 HASTELLOY® is a registered trademark of Haynes International, Inc.
3 Tri-Clamp® is a registered trademark of Ladish Co., Inc. BioControl® is a registered trademark of Neumo-Ehrenberg-Group.
VARIVENT® is a registered trademark of GEA Tuchenhagen GmbH.
4 Kalrez® is a registered trademark of DuPont Performance Elastomers L.L.C.
5 HART® is a registered trademark of the HART Communication Foundation
6 Only the 3.6 mA error signal is applicable to SIL-approved devices
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