ADM-870 05/23/087
4.0 DISPLAY MESSAGES AND PROMPTS
4.1 READ PROMPTS
The following ten prompts all include the term READ, which is a signal for the operator to press the READ key
to trigger the actual measurement.
English Units
CF: READ
This display indicates that the meter has been placed in the air flow function (cfm) and will appear
automatically upon power up if the flaps plug of the FlowHood is connected to the meter.
/ F: READ
This display indicates that the meter has been placed in the temperature function (
/ F).
FP: READ
This display indicates that the meter has been placed in a velocity function (fpm).
Hg: READ
This display indicates that the meter has been placed in the absolute pressure function (in Hg) with
reference to a vacuum.
IN: READ
This display indicates that the meter has been placed in the differential pressure function (in wc).
Metric Units
BAR READ
This display indicates that the absolute pressure readings will be displayed in bars (1 bar = 100 kPa) with
reference to a vacuum.
/ C: READ
Display indicates that the temperature readings will be displayed in degrees Celsius
/ C).
LS: READ
This display indicates that the meter has been placed in the air flow function and will read in litres per
second (L/s).
/S: READ
This display indicates that the velocity readings will be displayed in meters per second (m/s).
PA: READ
This display indicates that differential pressure readings will be displayed in Pascals (Pa).
4.2 MEASUREMENT READOUTS
In the following 12 examples, n indicates a number in the displayed result. If no sign is displayed, the result is
a positive number. A negative sign indicates a negative number. English and metric units are shown for each
example.
English Units
CF:
c
± nnnn
Indicates that the result represents an air flow measurement (cfm). "C" indicates that the result has been
compensated for backpressure effects.
CF:
u
± nnnn
Indicates that the result represents an air flow measurement (cfm). "U" indicates that the result has not
been compensated for backpressure effects.
FP: ± nnnnnn
Indicates that the displayed result represents a velocity measurement (fpm).
/ F: ± nnn.n
Indicates that the displayed result represents a temperature measurement (
/ F).
Hg: ± nn.n
Indicates that the result represents an absolute pressure measurement (in Hg).
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