Ametek Universal III 509-7X Series - Page 56

Conguration & Calibration
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4.4.4 Strapping Table
The strapping table is a 2-point to 21-point table used by
the Universal III to cause output current to follow specied
relationship to level. There are certain strapping tables
that are already built in to the transmitter software. These
are: Linear (vertical tank); Horizontal Tank with at ends;
Horizontal Tank with dished ends; Horizontal Tank with
hemispherical ends; and Spherical Tank. These predened
tables are automatically created by selections made with
Vessel Cong assignment during Conguration procedure
in Section 4.3.
If output-to-level relationship is not dened by one of these
tables, you may create a table in Strapping Table program.
To create a non-linear relationship, you will need at least 3
points and may use as many as 21 points. A 21-point table
will dene relationship to about a 0.1% accuracy. Common
example for a simple table would be Cone Bottom Vertical
tank which would require 3 points—bottom, straight-
side break point, and top. Open channel ow application,
however, could benet from using all 21 available points.
• Plan your table by lling out form below. You may use
rst column which lists every 5% between 0 and 100%,
or you may ll in your own values in column 2.
• Fill out column 3 with output values corresponding to
those listed in column 1 or 2.
Point Number Level Standard Level Optional Output Value
Preset Values Values In Selected
% Level % Level Units
1. 0
2. 5
3. 10
4. 15
5. 20
6. 25
7. 30
8. 35
9. 40
10. 45
11. 50
12. 55
13. 60
14. 65
15. 70
16. 75
17. 80
18. 85
19. 90
20. 95
21. 100