1. To access calibration mode, turn the power to the gauge on with the CAL wire grounded. The CAL wire is the GREEN wire on Pin 3 of Connector 2 (see Fig 1 on SCX Instructions).
2. The pointer will stop at 50% scale to indicate you have successfully accessed calibration mode.
3. Once the pointer stops at 50% scale remove the CAL wire from the ground source. The pointer will move to indicate the current calibration setting per "Calibration Settings" below.
4. To change the calibration setting, momentarily ground the CAL wire. Each time you momentarily ground the CAL wire, the calibration setting will change.
5. When the desired calibration setting is obtained, leave the CAL wire ungrounded for 5 seconds. The gauge will save the new calibration setting, exit calibration mode and return to normal operating mode.

Calibration Settings

• Vac/Boost with transducer (0.5-4.5V Output): 20% scale (12" Vac)
• Volts, 8-18V: 0% scale (8V)
• Oil Pressure with 9200 sender: 100% scale (100 PSI)
• Water Temperature 100-260F with 9201 sender: 88% scale (240F)