GORMAN-RUPP VG3B3-B, Инструкция по установке, эксплуатации и обслуживанию

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6
OPERATION
56
IFC 100
www.krohne.com 07/2010 - 4000041004 - MA IFC 100 R04 en
C1.2 filter
C1.2 filter Grouping of all functions related to filter of measuring sensor electronics.
C1.2.1 limitation Limitation of all flow values, before smoothing by time constant, affects all
outputs.
Settings: -xxx.x / +xxx.x m/s; condition: 1st value < 2nd value
Range 1st value: -100.0 m/s
≤
value
≤
-0.001 m/s
Range 2nd value: +0.001 m/s
≤
value
≤
+100 m/s
C1.2.2 flow direction Define polarity of flow direction.
forwards (according to the arrow on the measuring sensor) or backwards (in
the opposite direction to the arrow)
C1.2.3 time constant For all flow measurements and outputs.
xxx.x s; range: 0.0
…
100 s
C1.2.4 pulse filter Suppresses noise due to solids, air/gas bubbles and sudden changes in pH.
Select: off (without pulse filter) / on (with old pulse filter) / automatic (with
new pulse filter)
Pulse filter "on": Pulse filter "on": Pulse filter "on": Pulse filter "on": The change from one measurement value to the next one is
limited to the value "pulse limitation" for the total time "pulse width".
This filter allows a faster signal tracking for slowly changing flow values.
Pulse filter "automatic":
Pulse filter "automatic": Pulse filter "automatic":
Pulse filter "automatic": The raw flow values are collected into a buffer,
covering two times the "pulse width" values. This filter is called "median"
filter.
This filter allows a better suppression of pulse shaped disturbances
(particles or air bubbles in very noisy environment).
C1.2.5 pulse width Length of interference and delays to be suppressed on sudden changes in
flow.
Only available, if pulse filter (Fct. C1.2.4) is "on" or "automatic"
xx.x s; range: 0.01...10 s
C1.2.6 pulse limitation Dynamic limitation from one measured value to the next; only effective, if
pulse filter (Fct. C1.2.4) is "on".
xx.x s; range: 0.01...100 m/s
C1.2.7 noise filter Suppresses noise at low conductivity, high solids content, air and gas
bubbles, and chemically inhomogeneous media.
Select: off (without noise filter) / on (with noise filter)
C1.2.8 noise level Range within which changes are evaluated as noise, and outside of which
changes are evaluated as flow (only with noise filter switched on,
Fct. C1.2.7).
xx.xx m/s; range: 0.01...10 m/s
C1.2.9 noise suppression Set noise suppression (only when noise filter switched on, Fct. C1.2.7).
Range: 1
…
10, noise suppression factor [min = 1...max = 10]
C1.2.10 low flow cutoff Sets output value of all outputs to "0":
x.xxx
±
x.xxx m/s (ft/s); range: 0.0
…
20 m/s (0.0...32.8 ft/s)
(1st value = switching point / 2nd value = hysteresis),
condition: 2nd value
≤
1st value
C1.2.11 conductivity Setting the time constant for the conductivity measurement; only available, if
the conductivity measurement is activated
.book Page 56 Friday, July 9, 2010 12:29 PM