Amprobe AM8C Analog-Multimeter - Manual (Page 9)

3
• Never ground yourself when taking measurements. Do not
touch exposed circuit elements or probe tips.
• Always measure current in series with the load – NEVER
ACROSS a voltage source. Check fuse first.
• Never replace a fuse with one of a different rating.
• Do not operate instrument in an explosive atmosphere.
Measuring Procedures
Before You Start: Open the back of the unit and place one AA size
battery into the battery slot with correct polarity as shown. The
battery is used for resistance measurements only.
.
When connecting or disconnecting test leads to/from a circuit,
always first turn off power to device or circuit being tested
and discharge all capacitors.
2. Turn the function/range selector to the desired position. If
signal magnitude is unknown, always start with highest range
and scale down afterwards.
3. Strictly observe the max input limits. For the various
measurements, connect test lead tips as shown in illustrations
on page 7. As a last step read the measurement result off the
appropriate scale on the display.
Notes: For most accurate readings, keep the meter laying flat on a
non-metallic surface. Use a range setting that results in a reading in
the upper /3 of the meter scale. If the needle is not resting exactly
over the “0” at the left side of the scale, turn the plastic screw
under the display to adjust the needle.
Note for resistance measurements: Before taking a resistance
measurement, short the two probes together and adjust the
Resistance Zero Adjust knob to set the pointer to the “0” at the
right end of the resistance scale. If this does not prove possible,
replace battery.