PART THREE - OPERATION
SECTION 4 - ANALYZER CONFIGURATION
Model C53 Conductivity Analyzer (universal-mount 1/2 DIN)
Rev. 5-1000
44
SET FILTER Time
Select
PULSE SUPPRESS
(on/off)
A time constant (in seconds) can be set to filter or “smooth
out” the sensor signal. A minimum value of “0 seconds” has
no smoothing effect. A maximum value of “60 seconds” pro-
vides maximum smoothing. Deciding what sensor signal
filter time to use is a compromise. The higher the filter time,
the longer the sensor signal response time will be to a
change in the actual process value.
1.
With the
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screen displayed, use
Ø
Ø
key
to select the “SET FILTER” line.
2.
Press
ENTER key
to display a screen like
. Use
arrow keys
to adjust the dis-
played value to the desired filter time, and press
ENTER key
to enter the value.
Sometimes an external interference may occasionally cause
the measurement system to provide unstable readings.
Common causes include entrained gas bubbles in the proc-
ess, and electromagnetic interference (EMI or “electrical
noise” pulses). The analyzer has a pulse suppression fea-
ture to counteract this condition and stabilize readings.
Example: Suppose the analyzer reading is steadily showing
1880 µS/cm, then suddenly jumps to 1950 µS/cm for a few
seconds, and returns to 1880 µS/cm. By turning on this
feature, the analyzer will perceive this as a temporary up-
set, “suppressing” most of this pulse change and providing
a smoother measurement reading.
1.
With the
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screen displayed, use
Ø
Ø
key
to select the “PULSE SUPPRESS” line.
2.
Press
ENTER key
to display a screen like
. Use
Ø
Ø
and
×
×
keys
to view both
choices (OFF or ON). With the desired choice dis-
played, press
ENTER key
to enter this selection.
