Ludlum Model 375-10 Area Monitor

Digital Display, Internal Scintillation Probe

Ludlum Model 375-10 Area MonitorFor Nuclear Medicine Applications and other

The 375-10 wall-mounted area monitor feautres an internal scintillation detector, ideal for gamma / x-ray detection at the microR level. The device is designed to filter low-energy medical isotopes. The detector's removable lead shield provides resistance to low-energy sources which prevents nuisance alarms.

The four-digit LED display is readable from 30 feet away. User-configurable alarm setpoints are easy to configure. Calibration controls are protected under a calibration cover. The unit still functions after a power failure; it is protected by an eight-hour battery backup. Data is stored in non-volatile memory, even during a power failure.

The controller supplies local alarms but can be connected to optional external alarms, strobes, camera, or other recording and monitoring devices. The 375-10 can be assimilated into an ethernet network, if desired.

Model 375-10 Area Monitor Specifications

Indicated Use: Area monitoring
Detectors: 2"x2" Nal(Tl) Scintillator
Display: 4 digit LED display with 0.8" (2 cm) digits
Display Units: Can be made to display in µR/hr, mR/hr, R/hr,µSv/h, mSv/h, Sv/h, hr, cpm, cps
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
Low Alarm: Indicated by yellow LOW ALARM light and slow beep (1 per second) audible tone ( can be set at any point from 0.0 - 9999)
High Alarm: Indicated by red HIGH ALARM light and fast beep (4 per second) audible tone (can be set at any point from 0.0 - 9999)
Note: Audible alert and alarm indicators can be configured as a single beep if desired
Low Bat: (yellow) indicates less that 2 hours of battery power remaining
Dead Time: Adjustable to compensate for dead time of detector and electronics
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 "_____")
Data Output: 9 pin connector providing 5 decade logarithmic output, RS-232 output, 10BaseT Ethernet output, signal ground connection, FAIL and ALARM signals (current sink), and direct connection to battery and ground
Remote (optional): Model 271, or 272 Remote units
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 line power and turned on
Construction: Aluminum housing with ivory powder coat paint
Temperature Range: 5° F(-15° C) to 122° F(50° C)
May be certified for operation from -40° F(-40° C) to 150° F(65° C)
Size: 10.3"(43.2cm)H X 9.7"(24.6cm)W X 3.3"(8.4cm)D
Weight: 9.3 lbs(4.2 kg)

Model 375-10 Accessories

Remote Displays
Relays
Time Date Stamp

Manual

Check out the newer, less expensive, Radwall-S model with sensitive YSO scintillation and wireless PC interface.


 

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