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DSM-506 GLE-1

Plus Internal GM Detector

The DSM-506combined with the GLE-1 gives the user great flexibility when surveying for contamination from low energy gamma isotopes (ex. Am241, I125) plus the ability to survey for gamma dose rates up to 2000mR/hr. The rate meter boasts an oversized digital display and has a unique counts to dose capability allowing the user to quickly change from count rate to dose rate and back by simply flipping a toggle switch. Other features include a scaler for counts per unit of time, display error indications and audible/visual ALARMS.

SPECS DSM-506_GLE-1

FEATURES

  • SURVEY FOR LOW ENERGY GAMMA CONTAMINATION
  • SURVEY FOR GAMMA DOSE RATES UP TO 2000 mR/hr
  • LARGE DIGITAL DISPLAY
  • AUTO RANGING UNITS
  • DUAL MODE CAPACITY FOR
  • DOSE RATE & COUNT RATE

DSM-506 SPECIFICATIONS

Dose/Counts Switch Change Dose Rate to Count Rate by Toggling an External Switch
Display LCD 4-Digit x .75" LCD w/LED Backlight
Internal Detector Energy Compensated GM Tube
Energy Range 60 keV – 3 MeV
Internal Detector Dose Range 50μR/hr-2000mR/hr or equivalent Sv/hr
External Probe Connector All Johnson Probes
CPM Range 0-999.9 Kcpm or Kcps
Probe Linearization Internal adjust for calibration constant and dead time
Scaler Ranges 0-999.9 Kcounts
Scaler Count Time Ranges 10-2550 Seconds (10 second increments)
Alarms  5-95% of Range
Diagnostics Low Battery, Over-range – Audible & Visual Alarms
Range Adjustment Auto-Ranging All Scales
Electrical Non-Linearity < 5% Full Scale
Response Time Fast – 10-2550 Seconds (adjustable)/ Slow 10-250 seconds (adjustable)
Drift < 5%
Environmental -20°F[-28°C] to 140°F[60°C]| 5-95% RH IPX4 Housing
High Voltage Adjustable 400-1250 VDC | Regulation +-1%
Battery 6 – "AA" Alkaline (nominal 200hrs Operation)
Dimensions 5.25"(14cm) H X 4" (10cm) W x 7"(18cm) L
Weight 2.5 lbs. (1.2 Kilos)

GLE-1 SPECIFICATIONS

General Use Low Energy Gamma Count Rate Measurements
Detector Type 1” x 2mm NaI Scintillator
CPM Range 0-999.9 Kcpm
Window 18 mg/cm2
Energy Response 10 keV – 100 keV (Energy Dependent)
Sensitivity (I125 gamma) ≈ 675cpm/µR/hr
Operating Voltage 600 – 1100 vdc
Background (10 µR/hr) ≈ 300cpm
Compatibility All Johnson Rate Meters
Environmental -20°F[-28°C] to 140°F[60°C] 5-95% RH
Connector BNC (other types available)
Dimensions 1.8" (4.25cm) Dia x 6” (15cm) L
Weight 8 oz (0.23 kg)