Chapter 1. Programming Site Data
8
DigitalFlow™ XGS868i Programming Manual
1.6 Entering Transducer and Pipe Parameters
Enter the transducer and pipe parameters via the
PIPE
submenu. While following the programming instructions, see
1.
From the
Channel PROGRAM
menu, scroll to the
PIPE
option and press
[Enter]
.
2.
The first prompt asks for the
Transducer Number.
•
For a standard transducer, use the arrow keys to enter the number engraved on the transducer head, and press
[Enter].
•
If there is no number engraved on the transducer head, press the right arrow key to scroll to the
STD
option, and
use the up and down arrow keys to change to
SPEC
. Then use the arrow keys to enter an assigned number (from
91 to 99), and press
[Enter].
IMPORTANT:
Special transducers have no engraved number on the head and are rarely used. Examine the transducer
head carefully for a number.
•
If you entered the number for a standard transducer, proceed to the
Pipe OD
prompt in step 5.
•
If you entered the number for a special transducer, proceed to step 3 below.
1.6.1 Special Transducers
Note:
For special transducers, GE Measurement & Control will supply a transducer data sheet with programming
information.
3.
Scroll to the transducer
Frequency
(supplied by the factory) and press
[Enter].
Note:
The frequency is required to transmit an excitation voltage at the transducer’s natural frequency.
4.
Enter the special transducer
Tw
(time delay) value (supplied by the factory) and press
[Enter].
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.
Summary of Contents for DigitalFlow XGS868i
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