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DSM-506 W/ GLE-1 PROBE

Plus Internal GM Detector

The DSM-506 combined with the GLE-1 PROBE 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 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.

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)