Note: The Calibration tab contains features that should be limited to use by maintenance personnel only.
Preheater calibration should be performed when the machine has been in a Stopped state/preheaters off for
a minimum of 4 hours so that the preheater modules are reading ambient temperatures. Note that the 2 top
and bottom preheater zones closest to the solder pot may be reading higher than the preheater zones closest
to the fluxer due to residual heat coming from the solder pot.
Preheater Temperature Verification.
1. Open the Analog I/O screen by clicking on the Modules pull down menu then clicking Analog I/O see
below.
2. With the Analog I/O screen open note/record the temperature value displayed for the preheater that
is being verified/calibrated.
3. Using a handheld thermometer that is compatible with K type thermocouples unplug the control
thermocouple from the preheater that is being validated/calibrated and plug the preheater control
thermocouple into the hand held thermometer.
4. Record the temperature reading from the handheld thermometer.
5. Compare the temperature recorded from the Analog I/O screen to the temperature recorded by the
handheld thermometer. If the temperature dela is less than 4 degrees Fahrenheit, no additional
action is required. If the temperature delta is greater than 4 degrees Fahrenheit then calibration of
the preheater zone is required.
Preheater Calibration
1. Before starting calibration, machine Units must be configured for Imperial. If machine is not
configured for Imperial Units do the following
a. Click on the Configuration pull down menu then click on Units.
b. Pick Imperial. This will display all temperatures in Fahrenheit in the software.
2. Click on the screen graphic for the desired preheater to be calibrated.
3. Click on the Calibration tab for the preheater to be calibrated.
4. Enter the measured temperature from the handheld thermometer into this field.
This will create an offset in the software than can be verified in the “Trouble Shooting” tab. See below.
Note: If the offset value becomes greater than 20 degrees F call ITW/EAE Tech Support for further
assistance with corrective action.
Preheater Thermocouple Verification/Calibration should be performed every 12 months or whenever
thermocouples are replaced.