Sometimes when you are making repairs to electronic devices or electrical wiring systems in your home, you will need to know the exact volts, amps or ohms that a circuit is producing. The Fluke company makes digital electronic meters that you can use for this purpose that will give you a quick and accurate reading. Sometimes these devices may need to be calibrated again to ensure correct readings. You will need an electrical calibrator in order to perform this task, which can also be purchased from Fluke.
Hold down the "Min/Max" button on the meter. While holding this button down, turn the rotary knob to the "VAC" position. You will see "CAL" appear on the display to indicate that you have entered calibration mode. You can now release the "Min/Max" button safely.
Press the "Auto/Hold" button once. On the display you will see a number that corresponds to the amount of times that this meter has been calibrated for your reference. Press the "Auto/Hold" button once more and the display will show a string of question marks. Press the four buttons that represent your password, then press the "Auto/Hold" button once more.
Wait for the display to show "C-01." When this happens, attach the outputs from the meter into the inputs on the calibration tool. In the user's guide for your meter, you will see a table that tells you what position to turn the dial on the calibrator to for each step of calibration. Find "C-01" on the table. Turn the dial on the calibrator to the corresponding position and press "Auto/Hold" to accept the value and move on.
Wait for the display to show "C-02." Use the table to find the input for this step and turn the dial on the calibration tool to the correct position. Press "Auto/Hold" again to save and the display will show "C-03." Repeat this process for each of the steps up to "C-31." When finished, the display will show "End," at which point press "Auto/Hold" to finish the calibration.
If you do not have a copy of your owner's manual, you can download a copy from Fluke's website (see Resources).