5,000 ohms/volt AC. Voltage and current ranges are one-
half those. shown by the knob on the RANGE switch when
the V-fJ.-A slide switch is in the V-A/2 position. The sensiti-
vity of the voltmeter is 50,000 ohms/volt DC and 10,000
ohms/volt AC. Sensitivity of 25,000 ohms/volt DC and
5,000 ohms/volt AC is excellent and acceptable in most
measu ring situations. If you must have a sensitivity of
50,000 ohms/volt DC or 10,000 ohms/volt AC at any time,
set the V-fJ.-A switch in the V-A/2 position and divide all
readings by two.
2. Set the RANGE switch to the proper voltage or current range
before making measurements. If the lowest usable range is
one of those listed on the panel at the RANGE switch, set
the V-fJ.-A slide switch to the V-fJ.-A position. If it is one-
half of a range listed on the panel at the RANGE switch, set
the V-fJ.-A slide switch to the V-A/2 position. When the
V-fJ.-A slide switch is in the V-fJ.-A position, never apply
more voltage or current than the amount noted on the front
panel in each RANGE switch position. When the V-fJ.-A
slide switch is in the V-A/2 position, never apply more
voltage or cu rrent than one-half the amou nt noted on the
front panel in each RANGE switch position. When in
doubt as to the voltage or current present in a circuit
start with the highest range and set the V-fJ.-A slide switch
to the V-fJ.-A position. If the voltage or current is of such
magnitude as to be measurable on a lower range, select the
lowest RANGE switch position which will provide you
with a reading without causing the meter pointer to deflect
off-scale. If the maximum pointer deflection is below
one-half scale on the meter, set the V-fJ.-A slide switch to
the V-A/2 position and divide all readings by 2.
-6-
3. Do not check resistance (ohms) when voltage or current.is
present in the circuit.
4. Discharge a capacitor before measuring it.
5. Avoid placing the tester in a place where severe vibration is
encountered. Do not store it in an extremely hot or humid
location.
6. Remove the batteries before storing the tester for a long
period of time. Also rotate the RANGE switch from time to
time to clean the contacts.
7. To extend the life of the batteries, never leave the RANGE
switch in an OHMS setting when you are not in the process
of measuring reistance. It is best that you keep the RANGE
switch in the OFF position when the meter is not being used.
8. For all measu rements, plug the black test lead into the
e
COM. jack. Plug the red test lead into the
IJ)
V-fJ.-A jack
except when measuring from 250 to 1,000 volts or check
batteries
9. You can see a reflection of the meter pointer in the mirror
arc. To avoid parallax errors in you r readings, look straight
down onto the meter scale. You are doing this perfectly if
the mi rror image of the pointer is covered by the actual
meter pointer, so ·that you do not see its reflection in the
mirror arc.
DC VOLTAGE MEASUREMENTS
Select the required DC voltage range or use the procedure in
#2 above under OPERATI NG SUGGESTIONS. Connect the
test leads across the circuit whose voltage is to be measured.
Observe polarity. Read DC voltage on the appropriate scale. Be
sure to take the setting of the V-fJ.-A slide switch into account.
The range is as indicated by the pointer knob on the RANGE
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