Operation
5.11 Configuration
FIDAMAT 6-G
Operating instructions, 07/2006, A5E00478463
5-39
With this function, configure the user analog output:
With softkey 1, determine the lower value of the measuring range. The following settings
(see also table "Configurations of the analog output") are possible:
•
0 – 20 mA
•
2 – 20 mA
•
4 – 20 mA
•
NAMUR/4 – 20 mA (with limit at 3.8 mA).
You can invert the analog output with softkey 2: e.g. 0 to 100 ppm THC ≡ 0 to 20 mA or 0 to
100 ppm THC ≡ 20 to 0 mA.
With softkey 3, you can suppress the negative measured values. If a negative value has a
negative effect on further processing, the negative measured values at the analog output can
be limited to 0 (or 2/ 4/ 3.8 (NAMUR) mA) when this function is activated. The display
continues to show the actual measured value.
Table 5-6
Configurations of the analog output
Measuring range limit in normal
operation
Measuring range limit in case of fault /
CTRL
Defined analog
output / mA
Start-of-scale
value / mA
Full-scale value /
mA
Start-of-scale
value / mA
Full-scale value /
mA
0 – 20
-1
21
0
21
2 – 20
1
21
2
21
4 – 20
2
21
4
21
4 – 20 (NAMUR)
3,8
20,5
3
21,5
Note
If the electronics are defective, it is possible that the analog output gets stuck at approx. -1
mA or approx. +24 mA.