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.
