Table 25: Available measurement parameters
Option bar
Description
Good
Bad
Velocity
Displays the flow velocity.
N.A.
N.A.
Volumetric
Displays the volumetric flow.
N.A.
N.A.
FWD total
Displays the forward totalized volume flow.
N.A.
N.A.
REV total
Displays the reverse totalized volume flow.
N.A.
N.A.
Time
Displays the total flow measurement time.
N.A.
N.A.
Mass flow
Displays the mass flow.
N.A.
N.A.
FWD mass
Displays the forward totalized mass flow.
N.A.
N.A.
REV mass
Displays the reverse totalized mass flow.
N.A.
N.A.
Mw
Displays the molecular weight.
N.A.
N.A.
UP sig strength
Displays the signal strength for the upstream transducer.
50–75
<50 or >75
DN sig strength
Displays the signal strength for the downstream transducer.
50–75
<50 or >75
Soundspeed
Displays the measured speed of sound in the gas.
N.A.
N.A.
UP transit
Displays the upstream ultrasonic signal transit time.
N.A.
N.A.
DN transit
Displays the downstream ultrasonic signal transit time.
N.A.
N.A.
Delta T
Displays the transit time difference between the upstream and
downstream signals.
N.A.
N.A.
K(Re)*multi K*K factor
K factor, based on the Reynolds number.
N.A.
N.A.
PEAK%
Displays the percentage of peak (set to +50 by default).
N.A.
N.A.
UP signal Q
Displays the signal quality for the upstream transducer.
>1200
–400 to +400
DN signal Q
Displays the signal quality for the downstream transducer.
>1200
–400 to +400
UP amp discrim
Displays the value for the signal amplitude of the upstream
transducer.
24 ± 5
<19 or >29
DN amp discrim
Displays the value for the signal amplitude of the downstream
transducer.
24 ± 5
<19 or >29
UP DAC COUNTS
Displays the AGC DAC count for the upstream gain setting.
N.A.
N.A.
DN DAC COUNTS
Displays the AGC DAC count for the downstream gain setting.
N.A.
N.A.
UP +-peak
Displays signal peaks for the upstream transducer.
100-2300
<100 or >2300
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