Baker Hughes DigitalFlow XGF868i, Руководство по программированию

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C.5.2a Programming the mass flow option
1. Double-click on the desired mass flow units for flow rate
display (listed in Table 16 below).
Table 16: Available mass flow units
English Metric
Pounds Kilograms
KiloPounds =
thousands of pounds
Tonnes =
metric tons (1000 KG)
MillionPounds
TONS (2000 LB)
2. Double-click on the desired mass flow time units.
3. Double-click on the desired number of MDOT decimal
digits (digits to the right of the decimal point) in the mass
flow rate display.
4. Double-click on the desired mass totalizer units for the
totalized mass flow rate display (listed in Table 16 above).
5. Double-click on the desired number of mass decimal
digits (digits to the right of the decimal point) in the
totalized mass flow rate display.
PanaView returns to the channel program window shown in
Figure 41 on page 55 . Proceed to the pipe option on the
next page.
C.5.3 Entering pipe parameters
Enter the transducer and pipe parameters via the pipe
submenu. While following the programming instructions,
see Figure 55 on page 80 of Appendix D, PanaView
menu maps.
1. From the channel program menu, highlight and
double-click on the pipe parameters option in the
center pane.
2. The first prompt asks for the transducer number .
• For a standard transducer, double-click on the
standard option in the center pane. Then enter
the number engraved on the transducer head
in the right pane, and click [next item].
• If there is no number engraved on the transducer
head, double-click on the special option, enter
an assigned number (from 91 to 99), and click
[next item].
IMPORTANT
Special transducers, which have no engraved number
on the head, are rarely used. Examine the transducer head
carefully for a number.
The menu now varies, depending on your selection
in step 2.
• If you entered the number for a standard transducer,
proceed to the pipe OD prompt in step 4.
• If you entered the number for a special transducer,
proceed to step 3 below.
C.5.3a Special transducers
3. For special transducers:
NOTE: Panametrics supplies the information required for
steps a and b with the transducers.
a. Double-click on the appropriate frequency
(from 25 kHz to 500 kHz).The frequency is required
to transmit an excitation voltage at the transducer’s
natural frequency.
b. Enter the time delay (Tw) value supplied by
Panametrics and click [next item].
Tw is the time required for the transducer signal to
travel through the transducer and its cable. This time
delay must be subtracted from the transit times of the
upstream and downstream transducers to ensure an
accurate measurement.
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