Liquid Controls Sponsler T675 - Cryogenic System Register - Manual (Page 14)

Sponsler, Inc. Model T675 Flow Totalizer Technical Information Pg. 11
3.2.1.2 – Linearizer
Allows the T675 to take advantage of point to point programming using the turbine flowmeter calibration sheet to
enter frequency and corresponding Kfactor. The table is constructed from top to bottom. The frequency data must
be entered in numerical order, Point 0 being the lowest frequency and Point 9 the highest. To abbreviate the
number of linearizer points enter 0 for the frequency after the last desired point. Once a frequency of zero has
been entered the table is considered complete and all points below are calculated at the last valid Kfactor.
Remember that the number of linearizer points can range from 2 – 10. As a convenience, key will
alternate the linearizer between activated or deactivated during this function. The Initial Linearizer Display
illustration is an example of a 3 point linearizer.
Initial Linearizer Display
Linearizer OFF meter: 0000
FREQ K-FACTOR
0- 10 100
1- 100 100
2- 1000 100
3- 0 0
4- 0 0
5- 0 0
6- 0 0
7- 0 0
8- 0 0
9- 0 0
Enter setting (ESC to exit)?
(SETUP toggles linearizer ON/OFF)
The linearizer option is versatile and allows customized programming that reflects the application. This process
can be simplified by reviewing the turbine flowmeter calibration sheet in advance and determine the following:
1) The extent of flow range coverage desired; 2) The number of points to linearize; 3)Where to distribute the
points, such as 3 points over the entire range, 5 points confined to the lower half of the flow range etc.