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Reference Manual
00809-0100-4811, Rev DA
Appendix A: Reference Data
January 2015
Reference Data
Signal on alarm
Standard: Low = 3.75 mA. High = 21.75 mA
Namur NE43: Low = 3.6 mA. High = 22.5 mA
Saturation levels
Standard: Low = 3.9 mA. High=20.8 mA
Namur NE43: Low = 3.8 mA. High = 20.5 mA
Load limitations
Maximum load resistance is determined by the voltage level of the external power supply, as
described by Figure A-5, Figure A-6 and Figure A-7.
U
E
= external power supply voltage
R () = maximum load resistance
Figure A-5. Non-Hazardous Installations
Figure A-6. Intrinsically Safe Installations
R ()
U
E
(V)
Operating
region
R ()
U
E
(V)
Operating
region
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