Signet 9900 Operating Instructions Manual page 54

Custom Measurements
In the LEVEL/VOLUME INPUT menu (see page 41), if SHAPE is set to HORIZ CYLINDER, RECTANGLE or CUSTOM,
the tank shape can be defi ned with the following screens:
If Horiz Cylinder or Rectangle shape is selected, enter the length of the vessel in
LEVEL UNITS. 0.0000 to 99999.
If Rectangle shape is selected, enter the width of the vessel in LEVEL UNITS.
0.0000 to 99999.
If Custom shape is selected, enter the number of measurement points to be used to defi ne
the vessel shape (see Level and Volume Calculation in Custom Shaped Vessels discussion).
Minimum 3 points, maximum 10 points. A larger number of points improves accuracy.
Select (AUTO, MAN). Manual allows you to edit both the Level and the corresponding
Volume for your custom tank. Automatic allows you to edit the Volume measurement
(while displaying an automatically calculated Level value). See example below.
Enter the Level (if MAN measurement is selected) at each custom point in your vessel.
If AUTO is selected, indication will read actual tank level in LEVEL UNITS at that point
in your tank.
Set the Volume (if manual measurement is selected) at each custom point in your vessel.
Where (X) is number of custom points
Where (X) is number of custom points
To set AUTO LEVEL MEAS value:
1. Pour a known quantity of fl uid into a tank.
2. POINT 1 LEVEL indicates actual tank level.
3. Press ▼ for POINT 1 VOL. Press ► to enter quantity of fl uid (in VOLUME UNITS)
you poured into the tank in step 1. Press ENTER.
4. Repeat for each point set in NUM CUST PNTS.
For example, in a 25-gallon conical tank set for three custom points:
1. Pour 10 gallons of fl uid into the conical tank. POINT 1 LEVEL will indicate actual tank level.
2. In POINT 1 VOL, enter 10.
3. Pour another 10 gallons into the tank. POINT 2 LEVEL will indicate actual tank level.
4. In POINT 2 VOL, enter 10.
5. Pour the fi nal 5 gallons into the tank. POINT 3 LEVEL will indicate actual tank level.
6. In POINT 3 VOL, enter 5.
54 9900 Transmitter