DSM-506 Digital Survey Meter

Includes internal probe for added high range

Ideal for Nuclear Medicine Applications

DSM-506 Survey Meter by WB JohnsonHP-265 Pancake GM probe by WB Johnson

The DSM-506 is a digital, auto-ranging, microprocessor-controlled instrument with a large backlit, digital LCD. An internal probe is included for high range. The user must choose an external probe. This instrument can be configured to indicate, Cpm, Cps, R/hr and/or Sv/hr. Standard features include diagnostics, scaler, adjustable alarms, over-range alarm and other error indicators. The DSM-506 supports several different probes. Separate HV supplies for each detector enable the utilization of any Johnson probe. Each detector has full auto-ranging and can be utilized for separate functions: internal= dose and external= CPM or a different dose range. The DSM-506 meets nuclear medicine requirements. Over-range and regular alarms are provided for each detector. Diagnostics are standard. An RS-232 data output is available on request.

DSM-506 Survey Meter Specifications

Input Sensitivity: 0.050v
Dose/CPM Switchable: External Dose/CPM switch
Display units: (four Digit LCD w/backlight) CPM, KCPM, CPS, μR/hr, mR/hr, R/hr, μSv/hr, mSv/hr, Sv/hr
Display refresh rate: 0.8-3.0 seconds, adjustable
Display Back Light: Toggle Switch on for 30 seconds auto OFF, Repeat as needed
Scaler Timed Count: Settings 0.10-2550 seconds in 10 second increments
Probe 1 Range: (HP-265 Pancake probe) 0-200 mR/hr, 0-999,9 K CPM (other ranges and probes available)
Internal Detector: EC GM Detector 0-2,000 mR/hr - 0-999.9Kcpm
Scaler Range: 0-999.9Kcpm
Diagnostics: Low Battery, Over Range, HV out of range
Alarm: Adjustable from 5% to 95% of full scale for Dose and CPM
Over Range Alarm: Adjustable 10% above maximum range (dose calibration only)
Electrically Linearity: < 5%
Response Time: Fast: 10-250 seconds , Slow: adjustable from 10 --250 seconds
Drift: < 5%
Environmental: -20 deg F (-28 deg C) to140 deg F (60 deg C) | 5-95% RH IPX4 Housing
#1 High Voltage Adjustable: 300-1500 VDC | Regulation ±1%
#2 High Voltage Adjustable: 300-1500 VDC | Regulation ±1%
Audio: (loud click per input event) On/Off switch on Front panel
Battery: six AA Alkaline (Nominal 200 hrs Operation)
Display: four digit 0.75” (19mm) tall with Led backlight
Circuitry: Digital Microprocessor Controlled
Dimensions: 5.5" (14cm) H X 4" (10 cm) W X 7" (18cm) L
Weight: 2.5lbs (1.2 kilo) W/ Batteries
Construction: Heavy Duty Cast Aluminum & Stainless Steel

The most common choice for an external probe is:

HP-265 G-M Pancake Probe Specifications

Description: Long life halogen pancake G-M detector with 1.6 mg/cm2 End Window
Efficiency: (4pi geometry): Typically 5%-C-14; 22%-Sr-90/Y-90; 19%-Tc-99; 32%-P-32; 15%-Pu-239, Gamma dose to 200 mR/hr (Based on 137Cs calibration)
OperatingVoltage: 900 vdc
Window Thickness: 1.6mg/cm2
CPM/mR/hr: (137CS): 2,500
Energy Response: 3.5 MeV alpha, 20 MeV gamma, 100 keV beta
Sensitive Area: 15 cm2
Finish: Polyurethane Coated Aluminum
Dimensions: 2.75" dia. X 11" long
Weight: 16 ounces
Environmental: 20º - 60ºC, 5% - 95% RH non-condensing---IPX4
Construction: Polyurethane coated aluminum probe housing, nylon coated stainless steel probe clip

Other probe configurations are available.

DSM-506 Survey Meter with internal high range G-M probe and external pancake G-M probe (Order Online) (US Orders ONLY)(Please make sure to choose an external probe. SSL Encypted Ordering. )

For other probe configurations, please call.


 

Nuclear Instrumentation

Dosimetry Shielding Sources Specials

Hepa Vacuums

Chemical Detection

Marinelli Beakers

Fume Hoods

Accessories

Emergency Response

Nuclear Medicine

Radiation Therapy Search Home

Direct Scientific  /  tel (310) 589 0601 /   Email

contact us: en español, auf Deutsch
Open 8:00 AM - 5:00 PM Pacific Standard Time
Follow us on twitter and youtube.
visit our youtube channel
follow us on twitter
Check out our instrument demos.