©
2019 CDI Meters, Inc.
10.19
averages.
Please note that the meter has limited sensitivity to very short pulses
of air flow, and filtering or averaging the output does not alter this.
Alarms
If user-specified thresholds for minimum or average are exceeded, indicating
excessive air usage, the corresponding LEDs will blink. These blinks are short,
with the LED lit one eighth of the time. If the same LED is lit to indicate the
current display mode, it will blink off for one eighth of the time.
Units of Measure
Five options of units are available. Units should be set in accordance with local
custom and should match the markings on the cover of the meter.
Programming
With the meter displaying rate, press and hold the button. The minimum LED will
light immediately; when the average LED lights, release the button. The display
will now show two letters on the left and two digits, with or without a decimal
point, on the right. The letters indicate which parameter is being programmed;
the digits indicate the current value of the parameter. When a three-digit
parameter is displayed, one of the letters will be overwritten. To advance the
parameter, press and release the button; to advance the parameter rapidly, press
and hold the button. To advance to the next parameter, just wait. Time is
displayed in hours and tenths of hours.
symbol
meaning
description
range
LL
Low Limit
Threshold for minimum
flow alarm
0.1 cfm to
99 cfm
LP
Low Period
Period over which
minimum flow is
calculated (hours)
0.1 hr to
24 hr
AL
Average Limit
Threshold for average
flow alarm
0.1 cfm to
99 cfm
AP
Average
Period
Period over which
average flow is
calculated (hours)
0.1 hr to
24 hr
FF
Filter Factor
Degree of filtering
0
– no filtering
6
– maximum filtering
dd
default
display
0
– rate
1
– minimum
2
– average
3
– total
du
display units
Rate
0
– cfm
1
– Nm3/hr at 0 deg C
2
– Nm3/hr at 20 deg C
3
– Nm3/min at 0 deg C
4
– Nm3/min at 20 deg C
Total
1000 cuft
m3 at 0 deg C
m3 at 20 deg C
m3 at 0 deg C
m3 at 20 deg C
