Endress+Hauser Silometer FMC 672 Z, Инструкция по установке и эксплуатации

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6.1 Analogue output settings
Analogue output range One of two analogue ranges can be set at V0H3 for channel 1 and V4H3 for channel 2:
•
0 = 0 ... 20 mA/ 0...10 V (default setting.)
•
1 = 4 ... 20 mA/ 2...10 V.
Current and voltage outputs are switched together.
Step Matrix Entry Significance
1 V0H3 1 Selects 4 ... 20 mA/2 ...10 V range
2 - »E« Register entry
Output damping A filter, set at V0H4 for channel 1 or V4H4 for channel 2, acts to smooth the analogue
output. Using it results in a steady display and analog output less affected by sudden
changes in level e.g. due to turbulence. The effect may be modified by changing the
integration factor between 0 ... 100s.
•
0 = without filter.
•
1
…
100 = with filter (default value = 1 s).
Step Matrix Entry Significance
1 V0H4 e.g. 5 Sets integration time = 5s
2 - »E« Register entry
0/4
…
20 mA signal
parameters
These parameters, entered in the units used for calibration or linearization, indicate the
start and end of range values of the analogue signal output and also control the 10-step
LCD display. The parameters to be entered are:
•
0/4 mA value: V0H5 for output 1 and V4H5 for output 2
•
20 mA value: V0H6 for output 1 and V4H6 for output 2.
Step Matrix Entry Significance
1 V0H5 e.g. 100 Start-point level or volume for analogue output
-
V4H5 for output 2
2 - »E« Registers entry
3 V0H6 e.g. 1100 Full scale level or volume for analogue output
- V4H6 for output 2
4 - »E« Register entry
Turn-down scale:
Practically any start or end value can be entered, allowing the 0/4
…
20 mA signal to be
assigned to any section of the measuring range.
Reverse scale:
If V0H5/V4H5> V0H6/V4H6 a warning E 608 appears at V9H0 and the alarm LEDs blink,
however, the instrument continuous to operate. The warning and alarm can be eliminated
by swapping the values contained in the fields V3H8 and V3H9, D/A calibration, which
are normally used for service purposes only. The bar chart, however, still operates in the
same direction
Silometer FMC 672 Z/677 Z Chapter 6: Analogue Outputs
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