Major tech MT933 Instruction Manual - Page 9

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5. Press the CAL Button, the display alternately shows "

"; flash twice each time. Press the MEM Button, if the display

briefly shows "

measurement mode, the calibration succeeds.

6.lf the display show "

calibration fails and you need to check whether the connections and

contacts an correct and good. If you press the CAL Button again, the

meter will cancel calibrating and return to resistance measurement

mode.

6.2. Measuring Length of Wire

WARNING: Do not connect this unit to live voltage.

1. Set the rotary switch from the OFF to Ω Position.

2. Calibrate the meter as described in "Calibration Procedure".

3. For best results, allow the meter and the wire to be measured to attain

the same ambient temperature. Typically, it will take about 30 minutes.

4. Strip the insulation back on each end of the wire to be measured.

Note: make sure both ends of the wire are clean and the conductor is

fully exposed. Use abrasive paper to remove oxide layer on each end if

necessary.

5. Set the rotary switch from the OFF to Wire Gauge Position according to

the wire gauge of the wire to bemeasured; for example If the wire

gauge of the wire is 1 mm1 , you must set the rotary switch in the "1"

Position.

6. lf the wire to be measured is a copper wire, press the Cu/Al Button until

"Cu" appear on the display: If the wire is an aluminum wire, press the

Cu/Al Button until "Al" appears on the display.

7. Press the FT/M Button to select desired unit.

8. Connect an alligator clip to one end of the wire to be measured and

the other alligator clip to the other end of this wire.

" and then the meter returns to resistance

" after you press the MEM Button, the

" and