- Highly Sensitive Large Area Plastic Scintillation Detectors
- Microprocessor Based Electronics
- Audible and Visual Alarm Indicators
The Model 375P-1000 is a digital Model 375 Controller coupled to two shielded 7866 cm3 (480 in 3) plastic scintillator detectors. The detectors are encased in weathertight enclosures suitable for the outdoor environment. The Model 375 Controller is not weatherproof and must be mounted either indoors or within an environmental enclosure (available separately, see Options). This cost-effective solution offers a simple system that is easy to operate and maintain.
The system continuously monitors background levels and will alert the user when the infrared sensors detect a contaminated object. Once the object is removed, the system will return to normal (background) monitoring.
The controller supplies local alarms, but can also be connected to external alarms or even put onto an Ethernet network if desired. In addition, a 24-hour battery backup keeps the system operational in the event power is lost.
Medical Application
This system is ideal for inspecting outgoing trash and/or medical waste for possible low-level radioisotope contamination. It will easily pay for itself in the prevention of just one contaminated shipment. Fines assessed by the various regulatory agencies may be significantly more than the cost of installing this monitor at your facility.
Surface Contamination Inspection
Inspecting items using hand-held instruments can be too time-consuming in many cases. The Model 375P-1000 facilitates a more rapid and uniform inspection by placing two relatively large scintillation detectors in proximity to the incoming or outgoing articles under inspection. Both detectors are continuously monitored by the digital controller so any offending item can immediately trigger an alarm. Alarm conditions can be set up to automatically halt production conveyance devices, notify the central office, and even alert key personnel to initiate an immediate response.
Indicated Use: Area Monitoring
Detector: 2 ea. 480 in³ plastic scintillation detectors with 1/8
lead shielding in weathertight ;housings.
Detectors: 2 ea. 480 cubic inch shielded plastic
scintillation detectors
Display: 4 digit LED display with 0.8 (2 cm) digits
Range: 0.1 - 9999 kcps
Linearity: Reading within ± 10% of true value with detector
connected
Response:Typically 3 seconds from 10% - 90% of final reading
Status: (green light) instrument functioning properly
Sigma Alarm: Indicated by red ALARM light and audible
tone(can be set at any point from 0.0 - 9999 kcps)
Sum Alarm: Indicated by red ALARM light and audible tone
(can be set at set at any point from0.0 - 9999 kcps)
Note: Audible alarm indicators can be configured as a single
beep if desired
DET FAIL: (red light and audible tone; greater than 68 dB at 2
feet) indicates detector overload, no count from detector, or
instrument failure
LOW BAT: (yellow) indicates less than 2 hours of battery
power remaining
Overload: Senses detector saturation (indicated by display
reading "-OL-")
Overrange: Indicates radiation field being measured has exceeded
counting range of instrument(indicated by display reading
"____")
Relay Output: Mains (120 or 280 VAC) output on alarm
Data Output: 9 pin connector providing RS-232 output, signal ground
connection, FAIL and ALARM signals (current sink), and
direct connection to battery and ground
Calibration Controls: Accessible from front of instrument (protective
cover provided)
Power: 95 - 135 VAC (178 - 240 VAC available), 50-60 Hz
single phase (less than 100mA),
6 volt sealed lead-acid rechargeable battery (built in)
Battery Life: Typically 48 hours in non-alarm condition; 12 hours
in alarm condition
Battery Charger: Battery is continuously trickle charged when
instrument is connected to linepower and turned on
Construction: Aluminum housing with ivory powder coat paint
Temperature Range: -20°F(-29°C) to 140°F(60°C)
Size:
(Electronics) 10.3 in (26.2 cm)H X 9.7 in (24.6 cm)W X 3.3 in (8.4
cm)D
(Detectors) 72 in (183 cm)H X 8 in (20.3cm)Diameter
Weight:
(Electronics) 9.3 lbs (4.2 kg)
(Detectors) 65 lbs(29.5 kg)
