Max Machinery 121 INDICATOR - Manual (Page 10)

Pg 10 121-000-350 © 2001 Max Machinery, Inc.
Applications
3. Applications
3.1 Liquid Volume
Measurements:
A flowmeter measures the actual volume in a liquid line. A temperature sensor can also be installed to correct
for liquid thermal expansion (see 3.2 Corrected Volume).
Calculations:
• For Flowmeters with Pulse Outputs, Volume flow is calculated using the flowmeter
frequency output and the user entered K-Factor.
• For Flowmeters with Analog Transmitters, Volume flow is calculated using the measured
flowmeter signal and the user entered scale settings.
Output Results:
• Display Results
Flow Rate, Resettable Total, Non-Resettable Total
• Analog Output
Rate or Total
• Pulse Output
Total
• Relay Outputs
Rate or Total Alarms
Applications:
The Flow Computer can monitor actual volume flow and total of any liquid. Flow alarms are provided via
relays and datalogging is available via analog (4-20mA) and serial outputs.
Liquid Volume
Illustration
Calculations
Pulse Input; Average K-Factor
Volume Flow = input frequency • time scale factor
K-Factor
Analog Input; Linear
Volume Flow = % input • Full Scale Flow