GE UTX878 Ultrasonic, User Manual

Page: 71 / 103

Error Codes and Diagnostics 6-5
March 2004
Table 6-1: Available Diagnostic Parameters
Option Bar Description Good Bad
Delta-T[ns] Displays the transit time difference
between the upstream and downstream
signals.
≤
1 nsec >1 nsec
Amp Up
Displays the value for the signal ampli-
tude of the upstream transducer.
24 ± 5 <19 or >29
Amp Dn
Displays the value for the signal ampli-
tude of the downstream transducer.
24 ± 5 <19 or >29
T Up [µs]
Displays the upstream ultrasonic signal
transit time.
N.A. N.A.
T Dn [µs]
Displays the downstream ultrasonic signal
transit time.
N.A. N.A.
Gain Up [dB] Displays upstream gain in dB.
N.A. N.A.
Gain Dn [dB] Displays downstream gain in dB.
N.A. N.A.
Signal Up Displays the signal strength for the
upstream transducer. 50-75 <50 or >75
Signal Dn Displays the signal strength for the down-
stream transducer. 50-75 <50 or >75
Thresh Up [%] Displays the value at which the UTX878
detects the signal arrival time for the
upstream transducer. -100 - +100 <-100 or >100
Thresh Dn [%] Displays the value at which the UTX878
detects the signal arrival time for the
downstream transducer. -100 - +100 <-100 or >100
Norm Factor Displays the normalization factor. 0.85 - 1.0 <0.85
P# Up
Displays signal peaks for the upstream
transducer. 100-924 <100 or >924
P# Dn
Displays signal peaks for the downstream
transducer. 100-924 <100 or >924
Quality Up
Displays the signal quality for the
upstream transducer.
≥
1200 –400 to +400
Quality Down
Displays the signal quality for the down-
stream transducer.
≥
1200 –400 to +400
Reynolds # Displays the Reynolds number. N.A. N.A.
k(Re) K factor, based on the Reynolds number. N.A. N.A.
Cycle Time [ms] Time for the reading cycle to complete.
N.A. N.A.
KFactor Meter K calibration factor 0.5-2.0 <0.5 or >2.0
#Errors Number of errors present. 0<Programmed
Error Limit
>Programmed Error
Limit