2241-3RK Nuclear Emergency Response Kit

• Auto-ranging Digital Display
• Display in CPM and mR/hr
• 4 Complete Detector Setups
• Scaler
• Alpha Beta Gamma Pancake G-M Detector
• 1 in X 1 in NaI(Tl) Gamma Scintillator
• High Range Energy Compensated G-M
• Check Source with holder

Detectors: Model 44-9 Pancake G-M, Model 44-2 Gamma Scintillator, Model 133-7 High Range Energy Compensated G-M
Control Switch: A 5 position rotating switch to allow for quick change between four detector setups
Connector: Series "C" (others available on request)
Audio: Built in unimorph speaker with ON/OFF switch (greater than 60 dB at 2 feet)
Alert/Alarm: Indicated by enunciator on display and audible tone
Display: 4 digit LCD display with 0.5"(1.3cm) high digits, separate enunciators for display units, alert, alarm, low battery, detector overload, counting overflow, and scaler counting
Backlight: Push-button to activate
Ratemeter: Can display in R/hr, Sv/hr, cpm, or cps when control switch is in Ratemeter position
Display Range: Auto ranging from 0.0 microR/hr - 9999 R/hr; 0.000 microSv/hr - 9999 Sv/hr; 0 cpm - 999k cpm; or 0 cps - 100k cps
Linearity: Reading within plus or minus 10% of true value with detector connected
Scaler: Activated by push-button in handle (count time adjustable from 1 - 9999 seconds in 1 second intervals)
Calibration Controls: Accessible from front of instrument (protective cover provided)
High Voltage: Four independent controls; each adjustable from 200 - 2500 volts
Discriminator: Adjustable from 2 - 100 mV
Overload: Indicated by OVERLOAD on display (adjustable depending on detector selected)
Reset: Push-button to zero display, acknowledge and/or reset alarm
Power: 2 each "D" cell batteries (housed in sealed compartment that is externally accessible)
Battery Life: Typically 200 hours with alkaline batteries (low battery indicated on display)
Construction: Cast and drawn aluminum with beige polyurethane enamel paint
Temperature Range: -4° F(-20° C) to 122° F(50° C)
May be certified for operation from -40° F(-40° C) to 150° F(65° C)
Size: 6.5"(16.5cm)H X 3.5"(8.9cm)W X 8.5"(21.6cm)L
Weight: 3.5 lbs (1.6kg) including batteries

Backlight "ON" Time: 5, 30, 60, 90, 180, or 240 seconds for the backlight to stay "ON" when activated.
Set Minimum Display: Allows lower limit of auto-ranging display to be fixed. For example, display can be set to not show values less than 1 R/hr.
RS-232 Data Dump Mode: Enables or disables dump mode to RS-232 port. When enabled data will be dumped every 2 seconds
RS-232 Detector Setup Mode: Allows for detector parameters to be input by RS- 232 port
BAUD Rate: 150, 300, 600, 1200, 2400, 4800, 9600, or 19200 bps.
Dead Time: Adjustable from 0 - 9999 seconds
Calibration Constant: Adjustable from 0.001 - 280 X 109 counts/display unit
Display Units: Can read in R/hr, Sv/hr, cpm, or cps
Time Base: Can read in seconds or minutes
Audio Divide: 1, 10, 100, or 1000 events-per-click
Response:
Fixed: FAST response time adjustable from approximately 2 - 50 seconds. SLOW response is 5 times fast setting
Variable: Dependent on number of counts present. Typical times FAST - 4 - 25 seconds, SLOW - 4-60 seconds
(All times stated from 10% to 90% of final reading)
Ratemeter Alert/Alarm: Set at any point corresponding to pre-selected ratemeter range
Scaler Alarm: Adjustable from 1 - 999999 counts
Scaler Count Time: Adjustable from 1 - 9999 seconds

Model 44-9 Pancake Probe

Indicated Use: Alpha beta gamma survey; Frisking
Detector: Pancake type halogen quenched G-M
Window: 1.7 plus or minus 0.3 mg/cm² mica
Window Area:
Active - 15 cm²
Open - 12 cm²
Efficiency(4pi geometry): Typically 5%-C-14; 22%-Sr-90/Y-90; 19%-Tc-99; 32%-P-32; 15%-Pu-239
Sensitivity: Typically 3300 cpm/mR/hr (Cs-137 gamma )
Energy Response: Energy dependent
Dead Time: Typically 80 microseconds
Compatible Instruments: General purpose survey meters, ratemeters, and scalers
Operating Voltage: 900 volts
Connector: Series "C" (others available )
Construction: Aluminum housing with beige polyurethane enamel paint
Temperature range: -4° F(-20° C) to 122° F(50° C)
May be certified for operation from -40° F(-40° C) to 150° F(65° C)
Size: 1.8 in (4.6 cm)H X 2.7" (6.9 cm)W X 10.7" (27.2 cm)L
Weight: 1 lb (0.5kg)

Model 44-2 Pancake Probe

Indicated Use: High energy gamma detection
Scintillator: 1" (2.5 cm) diameter X 1" (2.5 cm) thick sodium iodide (NaI)Tl scintillator
Sensitivity: Typically 175 cpm/microR/hr (Cs-137)
Compatible Instruments: General purpose survey meters, ratemeters, and scalers
Tube: 1.5:(3.8cm) diameter magnetically shielded photomultiplier
Operating Voltage: Typically 500 - 1200 volts
Dynode String Resistance: 100 megohm
Connector: Series "C" (others available )
Construction: Aluminum housing with beige polyurethane enamel paint
Temperature Range: -4° F(-20° C) to 122° F(50° C)
May be certified for operation from -40° F(-40° C) to 150° F(65° C)
Size: 2 in (5.1 cm) diameter X 7.3" (18.5 cm)L
Weight: 1 lb (0.5kg)

Model 133-7 Detector

Indicated Use: High range gamma measurements
Detector: Halogen quenched G-M
Linear Range: 25 mR/hr - 100 R/hr
Sensitivity: 4.2 cpm/mR/hr (Co-60 gamma)
Energy Response: Within ±15% of true value
Construction: Anodized aluminum housing
Temperature range: -4° F(-20° C) to 122° F(50° C)
May be certified to operate from -40° F(-40° C) to 150° F(65° C)
Size: 1 in (2.5 cm) diameter X 4 in (10.2 cm)L
Weight: 0.2 lb (0.07kg)