Model 26-2

Integrated Frisker with Timed Frisk

Part Number: 48-4044

Features

Integrated, Lightweight Design
High-Impact Plastic with Water-Resistant Rubber Seals
GM Pancake Detector
Ratemeter, Peak, and Timed Frisk Operating Modes
Simple Two-Button Operation
Automatic LCD Backlight
Comfortable Non-Slip Grip, Includes Lanyard & Adjustable Wrist Strap
Daylight-Visible Green & Red Status LEDs

Frisking people and objects for alpha and beta contamination has always been a little awkward because manipulation of the detector and the electronics required the use of both hands. The cable-less Model 26-2 consolidates the electronics and the detector into one ergonomic housing. This optimized configuration incorporates a standard GM pancake detector and large auto-ranging LCD display into one convenient package, making it easier than ever to detect contamination.

Operation is simplified through the use of just two buttons. The MAX mode feature, which captures the highest or peak count rate, is particularly convenient whenever the display is not directly visible. The timed frisk mode allows the user to frisk for a fixed time interval. This instrument incorporates low power circuitry, delivering hundreds of hours of use with just two standard “AA” size batteries. The calibrator can protect parameters (cps/cpm, response time, alarm points, and frisk time) or allow the user to adjust them.

Specifications

Detector	Pancake GM detector, stainless steel screen
Window Area	Active: 15.51 cm²Open: 12.26 cm²
Efficiency (4π)	Alpha ²³⁹Pu: 11% Beta ⁹⁹Tc: 14% ³²P: 32% ¹⁴C: 2% ⁹⁰Sr/⁹⁰Y: 22% ¹²⁵I: 0.2% Gamma 5.5 cps per µSv/hr (3300 cpm per mR/hr) (¹³⁷Cs) ^99mTc: ≤ 1%
Display	3½ digit LCD with large 12.7 mm (0.5 in. ) digits, low-battery indicator, MAX, ALARM Units: (k)cps, (k)cpm
Range	0.1 cps to 1.99 kcps 1 cpm to 99.9 kcpm
Linearity	± 10%
Backlight	Built-in ambient light sensor automatically activates low-power LED backlight. May be configured for 'Continuous On' operation (will reduce battery life).
LEDs	Daylight-visible green LED for "OK" 3 red LEDs for 3 levels of alarm
Controls	ON / OFF / QUIET: Press to turn ON; Tap to alternate between 'click' audio and QUIET; Hold for OFF MODE: Alternates between NORMAL (count rate), MAX (captures peak rate), and TIMED FRISK (user-selectable preset count time from 0 to 20 min.)
Response Time	User-selectable from 1 to 60 seconds or Auto-response rate FAST or SLOW
Resolving Time	Approximately 110 µs as defined by IEC 60325
Alarms	Up to three count rate alarm setpoints, adjustable over the display range
Overload Protection	High count rate saturation protection prevents false display of lower count rates
Loss of Count Protection	After 60 seconds of no pulses from detector, unit will flash a zero reading and the alarm audio will be triggered
Click Audio	Greater than 60 dB at 0.6 m (2 ft)
HV Testpoint	Accessible by removing battery cover, allows HV measurement and pulse injection for calibration using optional cable (PN: 8303-1044)
Temperature Range	-20 to 50 °C (-4 to 122 °F) May be certified for operation from -40 to 65 °C (-40 to 150 °F)
Environmental Rating	NEMA 3 / IP 53
Power	Two 'AA' batteries
Battery Life	Approximately 250 hours of operation, 16-hour low battery warning
Construction	High-impact polycarbonate plastic with water-resistant rubber seals, separate battery compartment, and rubber overmold
Distance from Surface Plane to Screen	0.32 cm (0.125 in.)
Size (H x W x L)	4.6 x 6.9 x 27.2 cm (1.8 x 2.7 x 10.7 in.)
Weight	0.45 kg (1.0 lb)

Options

Option	Description	Part Number
Protective Cover with Tether	Adds tether to the detector protective cover to keep attached to instrument when cover is not in use.	4519-041
Headphone Jack	Adds headphone jack to instrument.	4498-538
Canvas Holster	Canvas holster with belt clip for Model 26 Series instruments.	2312577
Model 180-28	Sample holder for Model 26-Series friskers.	47-3948
Calibration Cable	Allows HV measurement and pulse injection into any Model 26 family of instruments (excluding the Model 26S) from 2019 and later. 99 cm (39 in.) long, C to test pin.	8303-1044
Extendable Pole	A lightweight pole with 5 telescoping sections and an adjustable clamp to hold a Model 26 Series Frisker. Useful to access high, low, or other hard to reach places. Length: 0.55 m (1.8 ft) collapsed, 1.5 m (4.92 ft) fully extended	4519-077
Transport & Storage Case for Model 26 and Extendable Pole	Rugged, waterproof, airtight, hard-shell case with dense foam padding to hold Model 26 and extendable pole.	2311064