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ERK-506

EMERGENCY RESPONSE KIT

The DSM-506 kit utilizes the DSM-506 Survey/Scaler meter to measure most alpha, beta, and gamma radiation & contamination fields from background to 2000mR/hr. Internal energy compensated GM detector, HP-265 GM pancake, and the MRSP-1 near tissue-equivalent scintillator are connected to the meter and can have dual (dose or CPM calibrations) that are switch selectable from the front panel. The timed count scaler function makes low-level contamination measurements more accurate once the operator selects the desired probe. Automatic ranging and diagnostics make the system extremely user-friendly. All components of the system are contained in a durable carrying case for easy storage and portability.

SPECS ERK-506
Category:

FEATURES

  • LARGE DIGITAL DISPLAY
  • AUTO RANGING UNITS
  • DUAL MODE CAPACITY FOR
  • DOSE RATE & COUNT RATE
  • 3 DETECTORS – INTERNAL GM,
  • HP-265 and MRSP-1

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 50 μR/hr – 2000 mR/hr or equivalent Sv/hr
External Probes HP-265 and MRSP-1
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)

HP-265 SPECIFICATIONS

General Use Alpha, Beta, Gamma Detection
Detector Type Halogen-Quenched GM Pancake Tube
CPM Range 0-999.9 Kcpm or Kcps
Dose Range 0-200 mR/hr (Cs137) – Requires linearization above 50 mR/hr
Window 1.7 ± 0.3 mg/cm2 mica, protected by a Copperl screen (79% open)
Window Area Active – 15.5 cm2 (2.4 in2)
Open – 12.3 cm2 (1.9 in2)
Efficiency (4π) C14 – 5%, SrY90 – 22%, Tc99 – 19%, P32  – 32%
Energy Response Energy Dependent
Sensitivity (Cs137 gamma) ≈ 3300 cpm/mR/hr
Operating Voltage 900 vdc
Dead Time 80 µsec
Normal Background ≈ 60 cpm
Environmental -20°F [-28°C] to 140°F [60°C] 5-95% RH
Connector BNC (other types available)
Dimensions 2.74″ (7cm) Dia x 11″ (28cm) L
Weight 1lbs (0.45 kg)

MRSP-1 SPECIFICATIONS

General Use Low Level Gamma Dose Rate Measurements
Detector Type 1.5” dia x 1” Plastic Scintillator
CPM Range 0-999.9 Kcpm
Dose Range 1 µR/hr – 10 mR/hr (Cs137)
Energy Response 40keV – 2 MeV (near tissue equivalent)
Sensitivity (Cs137 gamma) ≈ 100 cpm/µR/hr
Efficiency (4π) ≈ 2%
Background (10 µR/hr) ≈ 900 cpm
Operating Voltage 600 – 1100 vdc
Dead Time ≈ 35 µsec
Compatibility All Johnson Rate Meters
Environmental -20°F [-28°C] to 140°F [60°C] 5-95% RH
Connector BNC (other types available)
Dimensions 1.7″ (4.25cm) Dia x 6” (15cm) L
Weight 4 oz (0.11 kg)