CFM-88L 07/20/095
4.0 DISPLAY MESSAGES AND PROMPTS
4.1 READ PROMPTS
The following six prompts all include the term READ, which is a signal for the operator to press the READ key to trigger the
actual measurement. The units designation will always be followed by one of the three meter status characters, either a
symbol for the level of battery charge, the light symbol or the TREND mode symbol.
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 (following FLO-HOOD) 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).
Hg READ
This display indicates that the meter has been placed in the absolute pressure function (in Hg) with reference to a
vacuum.
Metric Units
LS READ
This display indicates that the meter has been placed in the air flow function and will read in liters per second (L/s).
/C READ
Display indicates that the temperature readings will be displayed in degrees Celsius (
/C).
Bar READ
This display indicates that the absolute pressure readings will be displayed in bars (1 bar = 100 kPa) with reference to
a vacuum.
4.2 MEASUREMENT READOUTS
In the following six 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.
/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).
Metric Units
LS c ± nnnn
Indicates that the result represents an air flow measurement (L/s). "c" indicates that the result has been compensated
for backpressure effects.
LS u ± nnnn
Indicates that the result represents an air flow measurement (L/s). "u" indicates that the result has not been
compensated for backpressure effects.
/C ± nnn.n
Indicates that the displayed result represents a temperature measurement (
/C).
Bar n.nnn
Indicates that the result represents an absolute pressure measurement (bar). (One bar = 100 kPa).
4.3 FUNCTION READOUTS
The following prompts and messages are listed in alphabetical order.
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