Siemens 7MB2335, Operating Instructions Manual, Page: 85 / 168

Operation
5-35
Operating instructions ULTRAMAT 23 gas analyzer
C79000-B5276-C216-03
selectable Analog current (neg. on) Analog current (neg. off)
0 - 20 mA 0 mA 0 mA
2 - 20 mA 2 mA 2 mA
4 - 20 mA 4 mA 4 mA
NAMUR - 20 mA 3 mA 3 mA
21 mA: see following table:
selectable Analog current (neg. on) Analog current (neg. off)
0 - 20 mA 21.0 mA 21.0 mA
2 - 20 mA 21.0 mA 21.0 mA
1)
4 - 20 mA 21.0 mA 21.0 mA
1)
NAMUR - 20 mA 21.5 mA 21.5 mA
1) If measuring range 2 is set to the maximum possible value, the
limiting value of range 2 ... 20 mA is at 20.9 mA and of
range 4 ... 20 mA at 20.8 mA.
S
Output during faults (analog output during a fault)
It is possible for you to define the type of measured value output
during a fault. The following are possible:
Hold: The last value measured prior to the fault is output for the
duration of the fault.
Actual: The measured value is continuously updated during the
fault.
Zero: see following table:
selectable Analog current (neg. on) Analog current (neg. off)
0 - 20 mA 0 mA 0 mA
2 - 20 mA 2 mA 2 mA
4 - 20 mA 4 mA 4 mA
NAMUR - 20 mA 3 mA 3 mA
21 mA: see following table:
selectable Analog current (neg. on) Analog current (neg. off)
0 - 20 mA 21.0 mA 21.0 mA
2 - 20 mA 21.0 mA 21.0 mA
1)
4 - 20 mA 21.0 mA 21.0 mA
1)
NAMUR - 20 mA 21.5 mA 21.5 mA
1) If measuring range 2 is set to the maximum possible value, the
limiting value of range 2 ... 20 mA is at 20.9 mA and of
range 4 ... 20 mA at 20.8 mA.
Analog output
during fault
Meas. value: hold
51011c