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Section 2
However, as an example, assume that the liquid's sonic velocity is very well known and is actually
1377 m/s. Press the <Right Arrow>. Note that an "equal sign" appears before the displayed sonic
velocity. Type [1377] and then press the [ENTER] key.
NOTE: As your 1020 metering experience with various liquids evolves, your knowledge and
confidence regarding their sonic velocities will grow. If the Estimated Vs and Mea-
sured Vs at site are different, as in the example on the previous page, consider it a
warning that something about the installation may be incorrect. Recheck transducer
mounting geometry (e.g., Are they axial, diametrical and spaced correctly?) and your
pipe data and re-install. On the other hand, when the Measured Vs conforms to the
Actual Vs, your degree of confidence in the correctness of the installation and the
meter's intrinsic calibration performance should be high.
This commands the meter to re-calculate its timing parameters to accommodate the new sonic
velocity setting.
Siemens
2 Channel
Drive 53
0
36
Transducer Model
Transducer Size
Xdcr Mount Mode
Measured Vs m/s
Spacing Offset
1395
Number Index
Spacing Method
Ltn Value (in)
Install Completed?
Empty Pipe Set
Zero Flow Adjust
Pick/Install Xdcr
Siemens
2 Channel
Drive 53
0
36
Transducer Model
Transducer Size
Xdcr Mount Mode
Measured Vs m/s
Spacing Offset
1377
Number Index
Spacing Method
Ltn Value (in)
Install Completed?
Empty Pipe Set
Zero Flow Adjust
Pick/Install Xdcr
2-31
[1]
SITE1
[6:
:0]
1021 Xdcr
C1
Reflect
Nominal
Flow
24
Invalid
2.330
Install
Chan Not Setup
Chan Not Setup
[1]
SITE1
[6:
:0]
1021 Xdcr
C1
Reflect
Nominal
Flow
24
Invalid
2.330
Install
Chan Not Setup
Chan Not Setup
1020NFM-1D
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