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Appendix G – Calibration
For temperature calibrations, connect a precision DC millivolt source set to 0.000mv to
input TC1 at terminal block P6.
Prior to calibration, check the Setting screen for Type K thermocouple setting
Power on the controller and press the CALIBRATION button that appears during the
SPLASH screen.
A to D Calibration Span
1. Set DC millivolt input at P6 to 0.000mV
2. Press the CAL button next to the 0.000mV label on the CALIBRATION screen
3. Wait for the RUNNING message to show SUCCESS
4. Set DC millivolt input at P6 to 25.000mV
5. Press the CAL button next to the 25.000mV label on the CALIBRATION screen
6. Wait for the RUNNING message to show SUCCESS
7. Power off the controller or choose a new calibration procedure from CALIBRATION
screen.
CJC Board Temperature Correction - Cold Junction Compensation
1. From the CALIBRATION screen, use the Slide button to select CJC
2. Set DC millivolt input at P6 to 0.000mV or jumper TC1 input at P6
3. Observe the TC TEMP reported on the screen
4. Compare the TC TEMP with a known actual room TEMP reference
5. Enter an offset value into the CJC offset field to make the TC TEMP equal to room
temp.
6. Set DC millivolt input at P6 to 50.000mV.
7. Observe the TC TEMP reported on the screen, it should be 2295F +/-5
PID Tuning Parameters
The Default PID terms are;
1. From the CALIBRATION screen or CJC screen, use the slide button to select PID
2. Touch the value fields for a pop-up keypad
3. Key in new values for the P, I or D fields, Save the new values with each entry.
4. Press the HOME button to return to the HOME screen
AutoFire Slide Kiln Controller
P = 3.000, I = 0.010 and D = 0.010
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