Alarm Ratemeter with Pancake GM Probe and Foot Monitor
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The external pancake probe monitors alpha, beta, and gamma radiation, and is the preferred detector for the majority of medical surveying applications. The Pancake GM Foot Monitor serves as a convenient shoe contamination monitor. Four multiplier settings (x1, x10, x100, x1000), threshold adjustment from 10 to 100 mV, and a toggle switch for FAST (2.2 sec.) or SLOW (22 sec.) response make this unit suitable for a wide range of medical applications.
- Monitors alpha, beta, and gamma radiation
- Audible alarm with red indicator light for continuous area monitoring
- Portable surveying with Pancake GM Probe (39″ cable included)
- 0-500K cpm range
- Operates on wall current or rechargeable battery
- Equipped for simultaneous hand and shoe contamination monitoring
Dimensions: 8″ w x 5″ h x 6″ l (20 x 13 x 15 cm)
Range: 0-500 cpm with multipliers of x1, x10, x100, x1000
Meter: 2.5″ (6 cm) panel meter reading 0-500 cpm and BAT TEST
Response: FAST (2.2 sec.) or SLOW (22 sec.) for 90% of full scale
Input Sensitivity: Factory set at 40 mV, ±15 mV
Linearity: Typically ±2% of full scale
High Voltage: Adjustable from 400-1500 volts with HV readout
Reset: Zeros meter after over range or alarm reading
Speaker: Built-in unimorph speaker
Alarm: Indicated by a red lamp on the front panel (when in an alarm state, the speaker goes to full volume overriding the volume control); non-locking alarm available upon request
Alarm Set: Located on front panel and may be checked with Test Switch; alarm reading will be indicated by audio and visual alarms
Recorder: Correlated to meter movement and is adjustable to 1.5 volts at 1 mA
Data-out Connector: 9-pin type “D” type series plug with connections as follows: Pin 1: Battery terminal; Pin 2: Unregulated supply; Pin 3: Instrument common ground; Pin 4: Alarm sink; Pin 5: Pulse out; Pin 6: Unbuffered output; Pin 7: Recorder output; Pins 8 and 9: Spare pins.
Power: 95 to 250 VAC wall adapter or battery power
Battery: 6 volt Gel-Cell rechargeable, with 50 hours typical life (not included)
Battery Charger: Continuously trickle charged when the power switch is in the ON position and the instrument is connected to AC power; optional external charger required for fast charge
Battery Dependence: Less than 3% calibration change when batteries read within battery test limits on meter
Finish: Polyurethane paint, beige
Weight: 4.2 lb (2 kg) including batteries
Pancake GM Probe:
Indicated use: alpha, beta, gamma surveying
Detector: Pancake type halogen quenched GM
Window: 1.7 ±0.3 mg/cm2 mica
Window Diameter: 1.75″ (4 cm)
Window Area: Active area approximately 15.5 cm2
Efficiency: 10% for C-14, 45% for Sr-90, 38% for Tc-99, 70% for P-32, Alpha 30%
Sensitivity: Typically 3300 cpm/mR/hr for Cs-137 gamma
Protective Screen: 79% open, stainless steel
Mounting: Aluminum holder, handle and window protector
Detector Cable: 39″ (99 cm), type “C” connectors
Dimensions: 8.5″ l x 2.75″ diameter (21 x 7 cm), handle diameter: 1″ (3 cm)
Weight: 1 lb (0.5 kg)
Pancake GM Foot Monitor:
Indicated use: alpha, beta-gamma foot monitor
Detector: 3 ea. pancake type halogen quenched GM
Window: 1.7 ±0.3 mg/cm2 mica
Window Area: Active 46 cm2, open 27 cm2
Sensitivity: Typically 9900 cpm/mR/hr
Energy Response: Energy dependent
Efficiency (2pi geometry): 10% for C-14, 45% for Sr-90, 38% for Tc-99, 65% for P-32, Alpha 30%
Housing: Aluminum
Dimensions: 10.8″ h x 7″ w x 9″ l (27 x 18 x 23 cm)
Weight: 4.4 lb (2 kg)
Cable: 60″ (152 cm), type ‘C” connectors (“T” connector included for simultaneous use with Pancake Probe)
Includes: Pancake GM Probe and Foot Monitor