Baker Hughes DigitalFlow XGF868i, Programming Manual

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1.8 Entering setup data
The signal limits, response times, mass flow and multiple
K factors for the XGF868i are specified via the setup
submenu. The following four submenus are included
in this section:
•
Signal - set the parameters related to the transducer
signal (see below).
• Default setup - reset all parameters to default
values ( Initializing setup parameters - default setup
on page 10 ).
• V averaging - specify the response of the meter to
step changes ( Setting response time - V averaging
on page 10 ).
• Advanced features - enable mass flow and enter
K factors ( Using advanced features on page 11 ).
While following the programming instructions, refer
to Figure 29 on page 41 . Record all programmed data in
Appendix B, data records .
1.8.1 Setting transducer signal parameters
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.
CAUTION!
The signal default settings are suitable for
most applications. Consult with Panametrics
before changing any of these parameters.
Only after consulting the factory, complete the following
steps to program the signal parameters:
1. In the
keypad program , scroll to prog and press [enter].
2. In the prog menu, scroll to CH1 or CH2 and press [enter].
3. In the channel program menu, scroll to setup and press
[enter].
4. Scroll to signl and press [enter].
5. Use Table 4 on page 8 to choose the desired values.
Use the arrow keys to enter a value (or scroll to a value for
a parameter with menu options) and press [enter].
Procedure options
After completing the above steps, the XGF868i returns to the
channel SET UP window. Do one of the following:
• To continue programming, refer to
Appendix A. Menu
Maps on page 39 , to navigate to the desired menu.
• To leave the keypad program , press [escape] three times.
Table 4: 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 SOUNDSPEED
+- 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.
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