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The Ranger has been designed for industrial environments, but it still has all of the features you’ve come to love in the lab. The Ranger is a small, handheld, microprocessor-based instrument which offers excellent sensitivity to low levels of alpha, beta, gamma, and x-rays and has built in efficiencies for common isotopes to calculate activity in Bq and DPM. It has a backlit digital display, a red count light, and a beeper that sounds with each count detected. Other features include selectable alert levels, an adjustable timer, and an optional wipe test plate for swipes. Internal memory and the free Observer USB Software allow you to download your data, set computer alarms, and calibrate your instrument!
|Detector||Internal Halogen-quenched, uncompensated GM tube with thin mica window, 1.4-2.0 mg/cm2 areal density. Effective diameter of window is 45 mm (1.77 in.). Radiation symbol on front label and end panel marks the center of the detector.|
|Averaging Periods||Display updates every 3 seconds. At low background levels, the update is the average for the past 30-second time period. The timed period for the average decreases as the radiation level increases.|
|Display||Backlit 4 digit liquid crystal display with indicators. Display updates every 3 seconds.|
|Energy Sensitivity||Detects Alpha down to 2 MeV. Detects Beta down to .16 MeV; typical detection efficiency at 1 MeV is approx. 25%. Detects Gamma down to 10 KeV through the end window. 3340 CPM/mR/hr (Cs137). Smallest detectable level for I125 is .02 µCi at contact.|
|Alert Set Range||mR/hr .001 - 50 and CPM 1 - 160,000. 70db @ 1m. Pulsating beeper sounds the alert. Adjustable alert levels are used for mR/hr / CPM, and µSv/hr / CPS. Alarm will sound when in Timer Mode when set alarm threshold is reached.|
|Count Light||Red LED flashes with each radiation event.|
|Audio Indicator||Internally mounted beeper (can be switched off for silent operation)|
|Outputs||Dual miniature jack drives CMOS or TTL devices and counts to computer or datalogger.
USB for use with Observer USB Software for PCs
|Anti-Saturation||Meter will hold at OVER RANGE in fields as high as 100 times the maximum reading.|
|Power Requirements||One 9-volt alkaline battery. Battery life is approx. 2000 hours at normal background.|
|Temperature Range||-10ºC to 50ºC (14ºF to 122ºF)|
|Weight||Inspector: 454 g (16 oz.) without battery.|
|Size||150 x 80 x 30 mm (5.9 x 3.1 x 1.2 in.).|
|Includes||Carrying Case, Certification of Conformance, Observer USB Software|
|Options||Xtreme Boot, Wipe Test Plate, & Stand|
|Limited Warranty||1 year limited warranty. 90 day limited warranty on GM Tube|
|Utility Menu||The Utility Menu offers several options accessible by holding down the + button while turning the instrument on.