Carefully replace the back onto the front of the case. Tighten
the screws. Do not tighten them excessively, or you will strip
the threads in the case.
CONTROLS AND JACKS
RANGE switch: Select factor and range to be measured.
V-fl.-A slide switch: Meter pointer indicates DC or AC voltage
or DC cu rrent on range selected by RANGE switch, when
slide switch is set to the V-fl.-A position. Meter pointer
indicates one half the voltage or current on range selected
by RANGE switch, when slide switch is set to the V-A/2
position,
OHMS ADJ. control: Use to set pointer to 0 (extrema right on
meter scales) on uppermost ohmmeter scale in an OHMS
setting of the RANGE switch, when test leads are in contact
with each other.
Mechanical adjust: Adjustable screw on meter movement to
set pointer to zero when leads are in contact with each other
in a DCV setting of the RANGE switch.
8
COM jack: Plug-in connection for black, negative test lead.
Ef>V-fl.-A jack: Plug-in connection for red, positive test lead,
1000V DC jack: Plug in connection for red test lead when
measuring DC to 1,000 volts. RANGE switch must be set to
the 250
&
1000 DCV position and V-fl.-A slide switch must
be set to the V-fl.-A position. Voltage will be 1/2 that noted
on meter (to 500 volts) if the V-rl.-A slide switch is set in the
V-A/2 position.
BAT_ jack: Plug-in connection for red, positive test lead when
testing batteries,
RANGE switch must be set to BAT. CHECK and slide
switch must be set to the wanted position.
-4-
OPERATING PROCEDURE
PRELIMINARY ADJUSTMENTS
1. Check the mechanical adjustable screw setting as follows:
a. Place the Sears 5205 tester flat on a bench:
b. Set the RANGE switch to 2.5 DCV. The V-fl.-A slide
switch can be set in either posi
ti
on.
c. Connect one test lead to the other,
d, Note if the meter pointer indicates exactly 0 at the
extreme left end of the black scales.
e. If it does not read 0, turn the screw on the meter move-
ments slowly until the proper 0 reading is realized.
2. Check the batteries as follows:
a
Place one test lead in contact with the other.
b. Set the RANGE switch to R x 1.
c. Turn the OHMS ADJ_ control until you fi nd the position
where the pointer indicates the full scale 0 on the OHMS
scale. If this adjustment cannot be made, replace the 1.5
volt size" AA" cell.
d. Now set the RANGE switch to R x 10K.
e. Turn the OHMS ADJ_ control until you find the position
where the meter pointer indicates full scale 0 on the
OHMS scale .. If this adjustment cannot be made, replace
the 9-volt battery.
OPERATING SUGGESTIONS
1. Meter ranges are noted on the front panel, arou nd the
RANGE switch. DC and AC voltage as well as DC current
ranges selected through use of the knob on the RANGE
switch are those shown at this switch only when the V-fl.-A
slide switch is in the V-fl.-A position. In this case, the
sensitivity of the voltmeter is 25,000 ohms/volt DC and
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