Decibels -12 to -55 db in 5 ranges (calibrated for use across a 500 ohm line
Resistance Range Center Scale
0 to 2000 ohms (12 ohms)
0 to 0.2 meg (1200 ohms)
0 to 20 megs (120,000 ohms)
Overall Dimensions 6-3/4" X 5-1/4" X 3"
Weight 2-3/4 pounds with batteries
Cabinet Highly polished black Bakelite
Panel Highly polished black Bakelite
Meter 4-1/2 inch face, 50 ua movement
OPERATING INSTRUCTIONS
Zero Adjustment
The slotted screw directly beneath the meter face is used to adjust the position of the meter pointer if it is off zero
(when no measurement is being made). To bring the meter pointer to zero, use a small screwdriver to turn the screw
either right or left as is necessary. This adjustment should be made before taking readings.
D-C Voltage Measurement
a. Set the DC-AC-OUTPUT switch to the DC position.
b. Set the RANGE switch to the voltage range that you can reasonably expect will include the voltage you are
measuring. If you are in doubt about the voltage present, always set the switch at the highest voltage range before
applying the unknown voltage to the instrument. Failure to observe this precaution may result in serious damage to the
meter. If the unknown voltage is too low for accurate measurement on the highest range, rotate the RANGE switch
towards the lowest voltage position until the range is found at which the voltage can be read accurately.
c. When a voltage is being measured on any range except the 5000 volt range, insert the test leads in the jacks
marked + (POSITIVE) and - COMMON. Place a test lead at each of the two points between which the DC voltage is to
be measured, observing polarities. If you have mistaken the polarities, the pointer will be deflected left of zero, in
which case simply reverse the test leads.
d. Voltages in either the 1000 or the 5000 volt range are measured with the RANGE switch in the 1KV-5KV
position. To use the 5000 volt range insert the test leads in the pin Jacks marked - COMMON and D. C. 5000 V.
CAUTION: Extreme care must be exercised when making measurement on the 5000 volt range, as high voltage is
dangerous. Never fail to turn off the
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