LUDLUM 5, Техническое руководство

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Model 5 Geiger Counter Technical Manual
Section 3
Ludlum Measurements, Inc. Page 3-2 May 2014
Response
: toggle switch for
FAST
(4 seconds) or
SLOW
(22 seconds)
from 10% to 90% of final reading
Reset
: pushbutton to
˝
zero
˝
the meter.
Overload
: holds the meter needle at full-scale in high radiation fields.
Power
: two
˝
D
˝
cell batteries housed in a sealed externally accessible
compartment
Battery Life
: typically greater than 2000 hours (battery condition may be
checked on the meter face)
Battery Dependence
: instrument calibration change less than 3%
within battery check limits on the meter
Temperature Range:
-20 to 50 ˚ C (-4 to 122 ˚ F)
Size
: 24.1 x 8.9 x 21.6 cm (9.5 x 3.5 x 8.5 inch) (H x W x L), including
instrument handle
Weight
: 2 kg (4.4 lb) including batteries and detectors
Construction
: cast and drawn aluminum with beige powder-coating.