Fluke 333 Calibration Information Manual page 10

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Calibration Information
Calibration Adjustment 333, 334, & 335
Use the following steps to adjust the calibration of the 333, 334, and 335 meters (refer to Figure 5):
1. Remove the 2 screw on the bottom of the Meter.
2. Lift off the top case.
3. Apply 600.0 V 50 Hz.
4. Adjust R12 until display reads within 1.0 V.
5. Apply 200.0 A 50 Hz (remove 600 Vac).
6. Adjust R15 until the display reads within 0.5 A.
7. Replace the top case.
8. Replace the case screws.
9. Verify the calibration by going through the performance test procedures.
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