Ludlum Measurements 239605, Руководство пользователя

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Model 3-IS & 3-IS-1 Technical Manual
Section 2
Ludlum Measurements, Inc. Page 2-5 October 2010
The count rate scale reads 0-5K
COUNTS
/
MINUTE
(kcpm or 1000’s of counts
per minute) and has
BAT TEST
on the dial.
If the needle is pointing as indicated below and the instrument range selection
switch is on the ×0.1 scale multiple, then the reading is 3.5 kcpm (multiplied
by) ×0.1 = 350 cpm.
The same needle indications on successive ranges would be:
×1 = 3.5 kcpm (or 3,500 cpm)
×10 = 35 kcpm (or 35,000 cpm)
×100 = 350 kcpm (or 350,000 cpm)
A typical dual scale (two arcs) meter face is shown below. The top scale reads
0-2 mR/hr. The bottom scale also reads 0-2 mR/hr and is for ×100 only scale.
The ×100
ONLY
scale will work correctly when the multiplier switch is in the
×100 range. The meter face also has a
BAT TEST
position on the dial.