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DSM-501 Digital Micro-R Survey Meter

The internal 1" x 1" plastic scintillator has a close to tissue-equivalent response and has an oversized digital backlit display, dose or cpm operation modes and comes standard with timed-count capability, probe-saturation and error indicators.


Input Sensitivity 0.05V
Display-LCD 4-Digit x .75" LCD w/LED Backlight
LCD Refresh Rate 0.8 - 3.0 Sec in 0.2 Sec increments - adjustable
Display Backlight Push button, 30 Second auto off
Dose Ranges 1.0 uR/hr - 10 mR/hr or Sieverts
CPS/CPM Ranges 0-9999 cps, 0-999.9 kcpm
Electrical Non-Linearity +- 5% of full scale
Response Time Optimized for Each Range
Drift <5%
Count Times 10-2550 seconds in 10 second intervals
Environmental -20° F[-28° C]-140° F[60° C] | 5-95% RH
High Voltage Adjustable 300-1500 VDC|Regulation +-1%
Alarms 5-95% of Range
Battery 6 "AA" Alkaline-400 hours nominal
Probe Linearization Internal adjust for cal constant and dead time
Circuitry Digital Microprocessor Controlled w/Analog Readout
Dimensions 5.25" (14cm) H x 4" (10cm) W x 7" (18cm) L
Weight 2.5 lbs. (1.2 Kilos)
Construction Heavy Duty Cast Aluminum and Stainless Steel
Diagnostics Low Battery, Overrange - audible and visual
Probe Internal Tissue Equivalent plastic scintillator

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