AXIOMET AX-C708 [3/13] Ranges

5. Ranges

A measurement range determines the highest value and resolution at which the meter can measure. Most

meter measurement functions have more than one range (see “Specifications”).

Make sure the correct range is selected:

- If the range is too low, the display shows OL (overload).

- If the range is too high, the meter will not be displaying its most precise measurement.

The meter normally selects the lowest range that will measure the applied input signal (<AUTO> showing

on the display). Press <RANGE> to lock the range. Each time <RANGE> is pressed, the meter selects the

next higher range for every press .At the highest range, it returns to the lowest range.

6. Testing Diodes

To test a single diode:

1. Insert the red test lead into the Hi (MEASURE) jack and black test lead into the COM jack.

2. Set the rotary function switch to Ω .

3. Press the blue button so that the symbol is on the display.

4. Touch the red probe to the anode and the black probe to the cathode (side with band or

bands).The meter should indicate the appropriate diode voltage drop.

5. Reverse the probes. The meter displays OL, indicating a high impedance.

6. The diode is good if it passes the tests in steps 4 and 5.

7. Using Display Hold

Warning

To avoid possible electric shock, do not use Hold to determine if dangerous voltage is present.

Activate Hold to freeze the meter’s display on each new stable reading. Press <HOLD> to activate Hold.

8. Using Relative Measuring Function

Press <REL> , the meter would show the present value in the sub-display district as a reference and the

relative value (minus between present value and referenced value) in the main-display district. For next

press <REL>, the meter would stop displaying the relative value.

Warning

In REL mode, be careful for possible dangerous voltage.