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<< Click to Display Table of Contents >> Navigation: LCR.iQ Product Manual > Setup and Operation > Operating the Register > Single-point Calibration |
Single-point calibration of the Register is designed to be quick and easy. Calibration of the Register should be performed by a qualified Weights and Measures authorized or factory trained technician. Typical calibrations are done using a volumetric prover, master meter or inline SVP (Small Volume Prover). Ensure that all equipment is properly connected and lines fully charged (pressurized) between the meter and proving device.
To begin the calibration process, you must first put the Register into the calibration mode by removing any existing seal wire and loosening the calibration bolt on the side of the register housing approximately 5-6 turns. If a ticket printer is connected to the Register, make sure a ticket is in place and the printer is ready. If connected, the register will print a calibration ticket showing the current calibration information of the register. If no ticket printer is connected or the calibration ticket is not desired, press the Abort key to skip the print process.
Once in the calibration mode, select the calibration option from the main menu to access the calibration screens. If this is the first calibration for the register or if the calibration factor (Pulse/Unit) has not been set for the meter that the register is connected to, it is recommend to set a starting factor. This will save time and additional calibration runs as the register adjusts the meters accuracy closer to zero error. See the recommended starting calibration factor chart in the appendix of this manual for typical starting calibration factors and enter this value in the Pulse/Unit field.
NOTE: Unit label will vary depending on the unit of measure that has been set up in the Register. |
In the calibration screens you will notice that there is a yellow key labeled Run Calibration. Pressing this key will begin the actual calibration process by performing the meter screen test and resetting the delivery volume to 000.000. At the same time, the Register will provide the permissive signal to the valve output to allow flow through the meter.
NOTE: All deliveries in the calibration mode have a resolution to the thousandths decimal place allowing for very precise calibration. |
Flow product into or through the proving device at the normal (nominal) operating flow rate for the meter until the desired calibration volume is reached. When calibrating the flow meter, it is recommended that the calibration volume be greater than or equal to the high end flow rate rating of the metering device (100 GPM = Minimum 100 Gallon prover).
Once the desired calibration volume is reached, pressing the End button will return the Register back to the calibration menu screens. Navigate the selection bar to the Prover quantity field, and press OK. Enter the exact volume to the greatest detail that was registered on the proving device, then press OK. At this point, the Register will calculate the percent of error between the prover and register, and automatically adjust the Pulses/Unit accordingly.
Repeat this process until the Register register is within local Weights and Measures tolerance or company regulations. Once all calibrations are made and setup is complete, tighten the calibration bolt on the side of the Register housing. If a ticket printer is connected and a final calibration ticket is desired, insert a ticket before exiting calibration mode and a ticket will print when prompted.