Process Technology LUFRAN Instruction page 51

Heater Calibration Startup Procedure:
This calibration procedure should be performed the first time the unit is operated. While
this unit was tested and calibrated prior to shipment, this procedure will help correct for
some offsets caused by variations in nominal supply voltages. While the DAC control
system will compensate for these differences, performing this procedure will improve
heater response.
This calibration startup procedure will disable the correction routines for the DAC control
system and allow the unit to operate with an open loop control. By observing the
performance of this unit without any error correction, the operator may adjust the heater
to improve heater response. This procedure may not be performed while the unit is in
MANUAL or REMOTE control mode.
This procedure must be performed following the STARTUP PROCEDURE provided on
the previous page.
10) Once the startup procedure is complete, insure that there is an adequate and steady
flow of water through the unit. Fluctuations in water flow will affect the results of
calibration.
11) Access the HEATER CALIBRATION menu on the touch screen interface. Use the
buttons on the navigation panel to first access the SYSTEM SETUP menu, and then
press the HEATER CALIBRATION button in the information panel to access this
display screen.
12) Turn the HEATER CALIBRATION setting ON. The image of the toggle switch will
change to indicate that the calibration mode has been turned ON.
13) Press the ENABLE HEATER button on the command panel of the display.
14) Allow enough time for the heater to ramp up to the process setpoint and to stabilize.
Depending upon the flow rate and the wattage of the unit, this may take several
minutes.
M-43-01
Revision - Date: 08 – 04/06/15
- 51 -
Lufran Single Outlet Manual