10
LEVELtrol-II Installation & Operating Instructions
3.4 Batching Volume, Corrected Volume or Mass from Tank Level
Measurements:
A Level transmitter measures the liquid level in a tank. A temperature
sensor can also be installed to correct for liquid thermal expansion (see
3.2 Corrected Volume).
Calculations:
• Fluid Density (if required)
• Actual Level in tank is computed from level signal, installation parameters
and fluid properties.
• Tank Volume, Corrected Volume, Mass
• Compare quantity delivered to quantity requested.
Output Results:
• Display Results
Level, Batch Total, Tank Total, Temperature, Density
• Analog Output
Level, Total, Temperature or Density
• Pulse Output
Amount delivered since start of batch (other uses available)
• Relay Outputs
Batch Total, Level, or Temperature Alarms
Applications:
Batching and monitoring level and total quantity in tank of any liquid.
Batching is accomplished via relays and datalogging is available via analog
(4-20mA) and serial outputs.
Batching Volume,
Corrected Volume or
Mass from Tank Level
Batching Illustration
STOP
START
5
0
–
TIME
CLEAR
•
MENU
ENTER
HELP
TEMP
4
PRE 1
3
LEVEL
2
TOTAL
1
GRAND
6
SCROLL
7
PRE 2
8
DENS
9
DP
Transmitter
∆
P
T
Temperature
Transmitter
Solenoid Valve
