DigitalFlow™ XGM868i Service Manual 61
Appendix B. Calibration and Testing with PanaView
Table 10: 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.
MDOT 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.
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)*MultiK*KFactor
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 value for signal amplitude of 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 Count Displays the AGC DAC count for the upstream gain setting. N.A. N.A.
DN DAC Count 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
DN+-Peak Displays signal peaks for the downstream transducer. 100-2300
<100 or >2300
Temperature Displays the gas temperature (from 0/4-20 mA input). N.A. N.A.
Pressure Displays the gas pressure (from 0/4-20 mA input). N.A. N.A.
Act. Vol Displays actual volumetric flow. N.A. N.A.
Std. Vol Displays standard volumetric flow. N.A. N.A.
UP Transit S
1
Displays Skan transit time upstream. N.A. N.A.
DN Transit S
1
Displays Skan transit time downstream. N.A. N.A.
Delta T S
1
Displays Skan Delta T. N.A. N.A.
UP Transit M
1
Displays Measure transit time upstream. N.A. N.A.
DN Transit M
1
Displays Measure transit time downstream. N.A. N.A.
Delta T M
1
Displays Measure Delta T. N.A. N.A.
Vinst Displays the instantaneous velocity. N.A. N.A.
1
available only if Burst Mode = S/M
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