Ludlum Measurements 195271, Руководство пользователя

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MODEL 2000 Technical Manual
Section 3
Ludlum Measurements, Inc. Page 3-1 November 2020
Specifications
0
Power
: line or battery power
Line Power
: 95–250 Vac, 50-60 Hz single phase, 250W
Batteries
: four "D" cells with typical life of 120 hours; self contained in
the instrument
Input Sensitivity
: voltage sensitive for use with all types of detectors,
including air proportional, GM, and scintillation
High Voltage
: adjustable with a ten-turn control from 200 to 2500 V;
supports 60 megohm scintillation loads to 1500 V
Input Connector
: series "C" coaxial connector; other connectors are
available upon request
Scaler
: a six-digit, light emitting diode, LED readout
Time
: Time base is normally in minutes from 0-999 with multiples of
×0.1 and ×1.
Optional
: Instrument may be switched to a seconds time base by placing
the internal dipswitch (SW1), switch “2,” to the
ON
position. In this
case, the count time may be set from 0-999 seconds with a multiplier
switch of ×1 and ×10.
Timer Accuracy
: Time base for the scaler is crystal controlled and has a
timer accuracy of ±0.2% of the thumb-switch setting.
Meter
: 1 mA, 6.4 cm (2.5 in.) scale, self shielded DC mechanism,
displaying 0 to 2.5 kV
Scaler Accuracy
: within 2% of reference value
Size
: 21.6 x 12.7 x 23.5 cm (8.5 x 5 x 9.3 in.) (H x W x L)
Section
3