GE AquaTrans AT868, User Manual

Page: 39 / 158

September 2004
2-14 Programming Site Data
Set Transducer Signal
Settings - SIGNL (cont.)
Table 2-3: Transducer Signal Settings
Transducer
Signal
Parameters Range
Default
Value Miscellaneous Information
Signal Low
Limit
-20 to 100 40
The
E1:LOW SIGNAL
error message appears when the
signal strength falls below the programmed
SIGNAL
LOW LIMIT
value. See Chapter 5, Error Codes , 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 5, Error Codes , 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
SOUNDSPEED ± LIMIT
value. See Chapter 5, Error Codes , for a discussion of
error codes.
Velocity Low
Limit
–328 to 328
ft/sec
(–100 to
100 m/sec)
–40.0 ft/sec
(–12 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 5, Error Codes , for a discussion of error codes.
Velocity High
Limit
–328 to 328
ft/sec
(–100 to
100 m/sec)
40.0 ft/sec
(12 m/sec)
The
E3: VELOCITY RANGE
error messages appears
when the calculated fluid velocity exceeds the
programmed
VELOCITY HIGH LIMIT
value. See
Chapter 5, Error Codes , for a discussion of error codes.
Acceleration
Limit
0 to 100
ft/sec
2
(0 to 30
m/sec
2
)
15.0 ft/sec
2
(4.6 m/sec
2
)
The
E6: CYCLE SKIP
error message appears when the
calculated fluid velocity changes by more than the
programmed
ACCLERATION LIMIT
value from one
reading to the next. See Chapter 5, Error Codes , for a
discussion of error codes.
Amplitude
Discriminator
Low
0 to 100 14
The amplitude measures the transducer signal received
by the Model AT868. The
E5: AMPLITUDE
error
message appears when the amplitude discriminator
falls below the programmed
AMP. DISCRIM. LOW
value.
See Chapter 5, Error Codes , for a discussion of error
codes.
Amplitude
Discriminator
High
0 to 100 34
The amplitude discriminator measures the transducer
signal received by the Model AT868. The
E5: AMPLITUDE
error message appears when the
amplitude discriminator exceeds the programmed
AMP.
DISCRIM. LOW
value. See Chapter 5, Error Codes , for a
discussion of error codes.