September 2004
6-2 Diagnostics
Displaying Diagnostic
Parameters (cont.)
Note: The measurement units that appear in these prompts are those
selected in the GLOBL-SYSTM menu as described in Chapter 2,
Programming Site Data.
The previous two prompts repeat until all of the specified # of LCD
PARAMS have been set up. Go to Procedure Options on page 6-3.
Table 6-1: Available Diagnostic Parameters
Option Bar Description Good Bad
SS up
Displays the signal strength for the
upstream transducer.
50–75 <50 or >75
SS dn
Displays the signal strength for the
downstream transducer.
50–75 <50 or >75
SNDSP
Displays the measured speed of sound in
the fluid.
N.A. N.A.
Tup
Displays the upstream ultrasonic signal
transit time.
N.A. N.A.
Tdown
Displays the downstream ultrasonic signal
transit time.
N.A. N.A.
DELTA
Displays the transit time difference
between the upstream and downstream
signals.
≤1 µsec >1 µsec
REYN# Displays the Reynolds number.
K(RE) 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.
THETA
Theta 3 is the angle between the ultrasonic
beam and the normal to the pipe wall. It is
calculated from the measured transit time
and the clamp-on parameters (clamp-ons
only).
N.A. N.A.
Qup
Displays the signal quality for the
upstream transducer.
≥ 1200 –400 to +400
Qdown
Displays the signal quality for the
downstream transducer.
≥ 1200 –400 to +400
AMPup
Displays the value for the signal
amplitude of the upstream transducer.
24 ± 5 <19 or >29
AMPdn
Displays the value for the signal
amplitude of the downstream transducer.
24 ± 5 <19 or >29
P#up
Displays signal peaks for the upstream
transducer.
100-2300
<100 or
>2300
P#dn
Displays signal peaks for the downstream
transducer.
100-2300
<100 or
>2300
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