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ENERGY RESPONSE
RELATIVE
PHOTON ENERGY (keV)
COUNTRATE
Tube Window
Side Wall
The Ranger offers maximum performance in a lightweight, rugged solution
for surveying at the facility or in the eld. 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 efciencies 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.).
Averaging Periods
Display will update every 3 seconds. At low background
levels, the update is the moving average for the past
30-second time period. The timed period for the moving
average decreases as the radiation level increases.
Operating Range
mR/hr - .001 (1µR) to 100 CPM - 0 to 350,000
µSv/hr - .01 to 1000 CPS - 0 to 5000
Total/ Timer - 1 to 9,999,000 counts
Accuracy
(Referenced to Cs137) Typically ±15% from factory, ±10%
with NIST Source Calibration
Size
140 X 68 X 33 mm (5.5 X 2.7 X 1.3 in.)
Weight
10.3 oz (0.64 lbs.)
Energy Sensitivity
3340 CPM/mR/hr referenced to Cs
• Detects Alpha down to 2 MeV.
• Detects Beta down to .16 MeV; typical
detection efciency at 1 MeV is approx.
25%.
• Detects Gamma down to 10 KeV through
the detector window. Smallest detectable level
125
for I
is .02 µCi at contact.
137
Built-In Efciencies
35
Sulfur (S35), 90Strontium (Sr/y90),
(Cs137), 32Phosphorus (P32), 14Carbon (C14),
131
Iodine (I131), 60Cobalt (Co60), and Alpha
137
Cesium
P.O. Box 39, 436 Farm Rd. Summertown, TN 38483
1-800-293-5759 | Fax: 931-964-3564
www.seintl.com | radiationinfo@seintl.com
®
INTERNATIONAL
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Display
Backlit Graphic LCD with Backlight
Count Light
Red LED ashes with each radiation event
Alert Set Range
mR/hr .001 - 100 and CPM 1 - 350,000
Alarm Indicator
Internally mounted beeper. 70db @ 1m.
(can be switched off for silent operation)
Outputs
USB for use with Observer USB Software Family
Anti-Saturation
Meter will hold at full scale in elds as high as 100 times
the maximum reading.
Power Requirements
Two AA alkaline batteries
Includes
Carrying Case, Xtreme Boot, Stand, Batteries, Mini-USB
Cable, Observer USB Software Download , Certicate of
Conformance
Options
Wipe Test Plate, Swipes, NIST Calibration
Limited Warranty
1 year limited
Ruggedized boot
and Stand Included
View of Back
with Ruggedized
boot
P.O. Box 39, 436 Farm Rd. Summertown, TN 38483
1-800-293-5759 | Fax: 931-964-3564
www.seintl.com | radiationinfo@seintl.com
Wipe Test Plate
USB Observer Software collects data stored in the internal
memory of The Radiation Alert Ranger
®
INTERNATIONAL
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