User guide

Watlow Series 97 Appendix ■ A.11

Calibrating the Series 97

To enter the a calibration menu, first warm up the unit, then enter the Factory

Page by holding down the Reset Key and ‰ for six seconds. Once in the Factory

Page [Fcty] use the up-arrow ¿ or down-arrow ¯ key to select a menu. The

last two menus on the Factory Page are Input Calibration Menu [cin1] and

Output Calibration Menu [cout]. If [`Ot4] is not a process output, the [cout]

prompt will not appear.

You can restore the original factory calibration with Restore Factory Calibration

[`rSt] (Calibration 1 Menu) or revert to the default parameter range value

with Default Settings [dFLt] (Calibration 1 Menu).

Figure A.11 — The Calibration Menus.

Factory Page

[Fcty] Factory Page

[`rSt] Restore Factory Calibration

[dFLt] Default Settings

[tc50] Thermocouple Calibration, 50mV

[tc00] Thermocouple Calibration, 0mV

[tc32] Thermocouple Calibration, 32°F

[`gnd] Set Ground

[LEAd] Lead Resistance Calibration

[r`15] RTD Calibration, 15Ω

[r380] RTD Calibration, 380Ω

[Fcty] Factory Page

[4``4] Output Calibration 4, 4mA

[4`20] Output Calibration 4, 20mA

[4``1] Output Calibration 4, 1V

[4`10] Output Calibration 4, 10V

‰

[`LOC] Lockout Menu

[FctY]

[dIAg] Diagnostics Menu

[FctY]

[cin1] Input Calibration Menu

[FctY]

‰

[cout] Output Calibration Menu

[FctY]