Digital Radiation Survey Meter w/internal & external detectors

The operation of the DSM-506 provides users the ease of an internal detector with the additional probe capability for those specific measurement needs. This feature, with its easy to read display, digital electronics and rugged design make the 506 a perfect instrument for all applications.

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Product Specifications

Input Sensitivity0.05V
Dose/CPM SwitchableExternal Dose / CPM Switch
Display-LCDCPM, KCPM, CPS, uR/hr,mR/hr,R/hr,uSv/hr,mSv/hr,Sv/hr
LCD Refresh Rate0.8 - 3.0 Sec adjustable
Display Backlighttoggle switch, 30 Second auto off
Probe 1 Ranges (HP-265) External0-200 mR/hr - 999.9 Kcpm - Supports all WB Johnson Instruments probes
Probe 1 Ranges (MRSP-1) Internal0-10 mR/hr - 999.9 Kcpm Energy Compensated GM 0-2 R/hr
Internal Detector EC GM Detector0-2,000 mR/hr - 0-999.9 Kcpm
Probe LinearizationInternal adjust for cal constant and dead time
Scaler Ranges0-9,999 CPM
Scaler Count Time Ranges10-2550 Seconds (10 second increments)
Alarms5-95% of full scale for Dose & CPM
DiagnosticsLow Battery, Overrange - Audible and Visual Alarms
Range AdjustmentAuto-Ranging All Scales
Over Range AlarmAdjustable 10% above max range - dose calibration only
Electrical Non-Linearity< 5%
Response TimeFast - 10-2550 Seconds (adjustable) | Slow 10-250 seconds (adjustable)
Environmental-20° F[-28° C]-140° F[60° C] | 5-95% RH IPX4 Housing
#1 High VoltageAdjustable 300-1500 VDC|Regulation +-1%
#2 High VoltageAdjustable 300-1500 VDC|Regulation +-1%
Audio (click per event)On--Off switch on front panel
Battery6 "AA" Alkaline-400 hours nominal
CircuitryDigital Microprocessor Controlled
Dimensions5.25" (14cm) H x 4" (10cm) W x 7" (18cm) L
Weight2.5 lbs. (1.2 Kilos) w/Batteries
Questions? Call today!
(208) 557-6945

Mailing Address
W. B. Johnson Instruments
3998 Commerce Cir.
Idaho Falls, Idaho 83401

Shipping Address
W. B. Johnson Instruments
3998 Commerce Cir.
Idaho Falls, Idaho 83401