Model 375P-1000

Outdoor Monitoring System

Part Number: 48-3470

Features

• Checks for Surface Contamination Entering/Exiting Facilities
• Affordable Digital Controller
• Weatherproof Encased-Shielded Plastic Scintillator Detectors
• Programmable Alarms
• Networkable (Requires Ethernet or Webpage Interface Option)
• Battery Backup

The Model 375P-1000 is a digital Model 375 Controller coupled to two shielded 7866 cm³ (480 in³) 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.

See Model 375 for additional detail and available options.

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.

Vehicle Radiation Monitor

The Model 375P-1000V (Part Number: 48-3782) variant is also available. This system includes vehicle presence sensors that prevent the unit from alarming unless a vehicle is being surveyed and the alarm threshold has been exceeded.

• Specifications
• Options
• Documents

• Specifications
• Options
• Documents

Specifications

Detector	2 ea. 7866 cm3 (480 in3) plastic scintillation detectors with 0.33 cm (0.13 in.) lead shielding in weathertight housings
Typical Sensitivity (137Cs)	400 cps per µR/hr per detector
Display	4-digit LED display with 2 cm (0.8 in.) digits
Range	0.0 to 9999 kcps
Linearity	Reading within 10% of true value
Status	Green light, instrument functioning properly
Sigma Alarm	Red ALARM light and adjustable audible tone, can be set at any point from 0.0 to 999 sigma
Sum Alarm	(for 2 detector system) indicated by red ALARM light and adjustable audible tone, can be set at any point from 0.0 to 9999 kcps
Alarm Response Time	2 seconds or less, based on internal dip switch setting
DET Fail	Red light and audible tone (greater than 68 dB at 61 cm [2 ft]), indicates no counts from detector or instrument failure
Low BAT	Yellow light, indicates less than 2 hours of battery power remaining (when AC power is off)
Overrange	Indicates radiation field being measured has exceeded counting range of instrument (indicated by display reading “——”)
Relay Output	Mains (120 or 240 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)
Temperature Range	-15 to 50 °C (5 to 122 °F)
Power	95 to 135 Vac (178 to 240 Vac available), 50–60 Hz, 6 V sealed lead-acid rechargeable battery (built-in)
Battery Life	Typically 24 hours in non-alarm condition
Battery Charger	Battery is continuously trickle-charged when instrument is connected to line power and turned on
Construction	Aluminum housing with ivory powder-coat
Environmental Rating	Electronics: IP51 (IP66 with Model 375P environmental enclosure)                                                           Detectors: IP66
Temperature Range	-15 to 50 °C (5 to 122 °F)
Size	Electronics (H x W x L): 26.2 x 24.6 x 8.4 cm (10.3 x 9.7 x 3.3 in.) Detectors (D x L): 20.3 cm x 183 cm (8 x 72 in.) (each)
Weight	Electronics: 4.2 kg (9.3 lb) Detectors: 29.5 kg (65 lb) (each)

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Options

Option	Description	Part Number
Model 375 Series Options	Various options are available for the Model 375 Series including: Enclosures Remote displays Alarm annunciators Signal outputs Software & networking options	Various
Vehicle Presence Sensors	Infrared sensors prevent the unit from alarming unless a vehicle is being surveyed and the alarm threshold has been exceeded. Included in Model 375P-1000V.	4396-1036

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Documents

• Data Sheet
• Model 375P-1000 Product Manual
• Model 375P-1000V Product Manual
• Ethernet Manual Addendum (for instruments with ESP32 Ethernet board)
• CE Certificate
• Model 375P-1000 Alarm Point Setting Guide

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