Orion Instruments Eclipse 705 - Manual (Page 34)

34
2.6.7 Strapping Table Description
The Model 705 is available with a 20-point custom strap-
ping table. Up to 20 pairs of Level—Volume points can be
entered to linearize the 4-20 mA output for odd-shaped
vessels.
There are two ways to enter data into the strapping table.
Procedure 1 (this method is the most common):
1. Ensure that “Level and Volume” is selected as the
Measurement Type (parameter 8 in table 2.6.5.2).
2. Ensure that the correct Level Units and Volume Units are
chosen. (Parameters 9 and 12 in table 2.6.5.2).
3. Scroll down to the StrapTbl (parameter 13 in table 2.6.5.2),
press enter. Pt01Lvl is displayed.
4. Press Enter, then enter the desired level for Point 1 in the
strapping table and press enter.
5. Enter corresponding volume for Point 1 in the strapping
table (shown as Pt01Vol on the LCD) and then press enter.
6. Repeat steps 4 and 5 for remaining points.
NOTES: 1. All twenty strapping table points do not have to be used
(unused points should be left at “0”).
2. Strapping table point values can be entered or changed
in any order.
3. All strapping table points must be monotonic and
sequential. In other words, each point must be larger
than the one before. If a non-monotonic entry is made,
the strapping length will stop at that entry.
Procedure 2:
The ECLIPSE Model 705 transmitter also allows the level
points to be entered automatically.
As above, a twenty-point table is available. However, with
this procedure, the user can allow the Model 705 to use the
present level as the strapping table entry.
1. Scroll down to the Strapping Table parameter and press
enter, Pt01Lvl is displayed.
2. Press and hold the ENTER button, then press the UP
arrow at the same time. (The present level reading is now
captured and entered into the strapping table.) Press enter
and the display shows Pt01Vol.
3. Enter the corresponding volume and press enter.
4. Add a known liquid volume to the vessel.
5. For the remaining points, add a known liquid volume to
vessel and repeat steps 2 to 3.
57-600 Eclipse ® Guided Wave Radar Transmitter