Specifications
Weight: 120 g / 4.2 oz. Dimensions: 74 x 52 x 15 mm / 2 3/4" x 2" x 5/8". The optical
scales are graduated in degrees from 0° to ±90°, and 0 % to ±150 %.
A table of cosines is imprinted on the back of the instrument.
Resolution
Can be read directly to one degree or one per cent. Can be estimated to 10 minutes
or 1/5 of 1 per cent, the latter naturally applying to readings around the zero level.
AVAILABLE PM-5 VERSIONS
The basic PM-5/360 PC has been modified by fitting it with different scale
combinations for special uses. Thus there is available a version with a "new degree"
or grade scale. Here, instead of the normal 360-degree division, the full circle is
divided into 400 grades (g). The per cent scale there alongside is normal. The model
is PM-5/400 PC.
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