DigitalFlow™ XGS868i Programming Manual
15
Chapter 1. Programming Site Data
1.8.1 Setting Transducer Signal Parameters (cont.)
Table 4: Transducer Signal Settings
Transducer
Signal
Parameters
Range
Default
Value
Miscellaneous Information
Signal Low
Limit
-20 to 100
20
The E1:LOW SIGNAL error message appears when the signal strength falls
below the programmed SIGNAL LOW LIMIT value. See Chapter 2 in the
Service Manual
for a discussion of error codes.
Correlation
Peak Limit
0 to 500
100
The E4: SIGNAL QUALITY error message appears when the signal quality falls
below the programmed COR. PEAK LIMIT value. See Chapter 2 in the
Service
Manual
for a discussion of error codes
Soundspeed
+- Limit
1 to 50%
20%
The E2:SOUNDSPEED error message appears when the calculated fluid
sound speed differs from the fluid sound speed entered in the Channelx-
System menu by more than the programmed SOUN- LIMIT value.
See Chapter 2 in the
Service Manual
for a discussion of error codes.
Velocity Low
Limit
-500 to 500
ft/sec
(-150 to 150
m/sec)
-75.0 ft/sec
(-23 m/sec)
The E3: VELOCITY RANGE error messages appears when the calculated fluid
velocity is less than the programmed VELOCITY LOW LIMIT value.
See Chapter 2 in the
Service Manual
for a discussion of error codes.
Velocity High
Limit
-500 to 500
ft/sec
(-150 to 150
m/sec)
75.0 ft/sec
(23 m/sec)
The E3: VELOCITY RANGE error messages appears when the calculated fluid
velocity exceeds the programmed VELOCITY HIGH LIMIT value.
See Chapter 2 in the
Service Manual
for a discussion of error codes.
Acceleration
Limit
0 to 250ft/s
(0 to 76m/s)
50 ft/s
(15 m/s)
The E6: CYCLE SKIP error message appears when the calculated fluid velocity
changes by more than the programmed ACCELERATION LIMIT value from
one reading to the next. See Chapter 2 in the
Service Manual
for a discussion
of error codes.
Amplitude
Discriminator
Low
0 to 100
14
The amplitude discriminator measures the transducer signal received by the
XGS868. The default value for this parameter is 14, and values from 0 to 100
are acceptable. The E5: AMPLITUDE error message appears when the
amplitude discriminator falls below the programmed AMP. DISCRIM LOW
value. See Chapter 2 in the
Service Manual
for a discussion of error codes.
Amplitude
Discriminator
High
0 to 100
34
The amplitude discriminator measures the transducer signal received by the
Model XGS868. The default value for this parameter is 34. Values from 0 to
100 are acceptable. The E5: AMPLITUDE error message appears when the
amplitude discriminator exceeds the programmed AMP. DISCRIM HIGH
value. See Chapter 2 in the
Service Manual
for a discussion of error codes.
Delta T Offset
-1000 to
1000
μ
sec
0
μ
sec
An offset between the upstream and downstream transit times is specified
at this prompt.
Skan T Offset
–500 to
500
μ
sec
58
μ
sec
At this prompt, specify a time measurement offset that compensates for a
shift resulting from cross-correlation.
% of Peak
1 to 100%
50%
The percentage of peak used to calculate the transit times and Delta T is
specified at this prompt.
Summary of Contents for DigitalFlow XGS868i
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