Baker Hughes DigitalFlow XGF868i, Programming Manual

Page: 71 / 100

C.5.5 Entering setup parameters
The signal limits and response times for the XGF868i are
specified via the SETUP submenu. While following the
programming instructions, refer to Figure 57 on page
82 of Appendix D, PanaView menu maps . This submenu
includes four options:
•
Signal - set the parameters related to the
transducer signal
• V Averaging - specify the response of the meter
to step changes
• Default setup - initialize all parameters to
default values
• Advanced features - enable mass flow or activate
K factors.
To enter the set up submenu, highlight and double-click on
the set up option in the center pane of the channel menu.
Remember to record all programmed data in Appendix B.
Data records on page 45 .
C.5.5a The signal option
Use this option to set the limits for the incoming signal
and other parameters affecting the transducer signal. For
example, the programmed signal strength low limit may
be used to determine the trigger point for an alarm.
IMPORTANT
The signal default settings are suitable for most
applications. Consult with Panametrics before changing
any of these parameters.
1. From the set up option menu, highlight and double-click
on signal in the center pane.
2. For each parameter, click [next item] to accept the
current value or enter a new value and click [next item].
Figure 18 on page 32 lists ranges and default parameters
for each parameter.
Table 18: Transducer signal settings
Transducer signal
parameters
Range
Default
value
Description
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
Sou- 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)
-150 ft/sec
(-46 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)
150 ft/sec
(46 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 250 ft/s
(0 to 76 m/s)
15 ft/s
(5 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.
61