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Introduction |

● Small Article Radiation Monitor with 1.6 ft3 Interior Volume
● True 4∏ Counting Geometry for Optimized Homogenous Efficiency
● QPASS Counting Technology for Shorter Counting Cycles
● Color LCD with Touch Screen Interface
● USB Port for Printer-Free Operation and Calibration
● User-selectable Operating Modes
● Auto Calibration Routine
● Several Configurations Available
● Larger Version Available - Model 54
Automated, routine radiation contamination frisker type instruments like Ludlum’s Model 54A Small Article Monitor is a well-proven methodology for ensuring that items leaving controlled areas are clean. Ludlum’s new Model 54A is a smaller version of the Model 54 and incorporates identical field-proven algorithms and features. The 1.6 cubic foot (45.3 L) volume of the Model 54A offers greater convenience for monitoring smaller articles. Central to the design is the detector chamber, which is configured to deliver an optimized detection volume for articles that fit within the chamber. Thick 2 in. (5 cm) plastic scintillator detectors are specially designed and arranged to optimize the sensitivity throughout the chamber. A stainless steel liner protects the detectors while facilitating decontamination. The chamber can be configured with either four or six detectors, and either 1 or 2 in. (2.5 or 5.1 cm) of lead. The lead is shipped separately and easily loaded on site.

The
Model 54A is equipped with a single door, which can
be mounted with either a left- or right-hand swing. Hardened steel hinges,
securely bolted to the instrument frame, employ ball-bearings to make operating
the doors as easy as possible. Very powerful, non-jamming,
electromagnet-activated door locks are employed to keep the door locked until
the count is completed or until an alarm is cleared depending upon the set-up.
Ludlum’s new QPASS algorithms provide a means whereby administrators can
optimize the settings best suited for their operations. QPASS additionally
surpasses all other technologies via built-in intelligence that can
automatically optimize settings as the count begins to deliver the most
efficient and effective count possible. It’s a perfect balance between minimum
count time and maximum sensitivity that affords eliminating a second count to
verify any alarms.
Operational status and instrument condition is clearly presented to the operator
via a 7 in. (17.8 cm) LCD touch screen. The software displays are designed to be
very intuitive and are accompanied by a large-size pushbutton to activate sample
counting. There are also two smaller pushbuttons for updating the background or
acknowledging any alarms. The main counting screen is locked with
password-controlled access via the touch screen. From the main screen, the user
can perform either routine check functions at one level or access all parameters
at a second level. The electronics support the latest Ludlum detector boards,
which are connected to a PC-based fan-less embedded computer running on Embedded
Windows™ XP platform. The system also provides an ethernet port that enables
connection to the site LAN for collecting all count and alarm data as well as
monitoring all activities remotely from one or more locations. When taken in
total, the Ludlum Model 54A Small Article Monitor delivers state-of-the-art
technology in a robust design with enhanced performance, user-friendliness, and
connectivity at the lowest cost on the market.
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Specifications |
PART NUMBER:
48-3792
CHAMBER:
Internal Dimensions: 14 x 14 x 14 in. (35.6 x 35.6 x 35.6 cm) (H x W x L)
Detection Volume: 1.6 ft³ (45 L)
Liner Material: stainless steel
DETECTORS:
Four or six detector configurations available
Scintillator: EJ-200 plastic
Size: 13 x 13 x 2 in. (33 x 33 x 5.1 cm) (H x W x L)
DOORS:
Reversible door swing
Door hinges are heavy duty rated, incorporating ball bearings for smooth operation
Door locks to control door operation
ELECTRONICS:
Embedded PC running Embedded Windows™ XP
Display: 7.0 in. (17.8 cm) (diagonal) TFT LCD, SVGA, touch screen
User Pushbutton Controls: Start/Stop Count, Background Update, Alarm
Acknowledgement. All other control functions are available via the LCD touch
screen. Password protection employed.
I/O: Alarm & access control relays, USB ports, TCP/IP
MECHANICAL:
Dimensions: 37 x 27.0 x 31.5 in. (94 x 68.6 x 80.0 cm) (H x W x D)
Weight:
0 in. (0 cm) of Lead: approximately 700 lb (318 kg)
1 in. (2.5 cm) of Lead: approximately 1700 lb (771 kg)
2 in. (5.1 cm) of Lead: approximately 2750 lb (1247 kg)
Lead is shipped separately and installed on site
ENVIRONMENTAL:
Temperature: 32–122 °F (0–50 °C)
Maximum Humidity: 95% non-condensing
COUNTING:
Three alarm modes to maximize throughput, sensitivity, or fix the count time. Alarms available for sum channels, sum zones, and individual detectors. Automatic background updating. Contaminated detector checking, false alarm control. Logs each use, operational test, and calibration.
PERFORMANCE:
Detects 2.2 nCi mixed 60Co/137Cs source in less than 5 seconds
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Configurations |
● 4 detectors, 2 doors, 1 in. (2.5 cm) lead shielding - Part Number 48-3728
● 4 detectors, 2 doors, 2 in. (5.1 cm) lead shielding - Part Number 48-3727
● 6 detectors, 2 doors, 1 in. (2.5 cm) lead shielding - Part Number 48-3726
● 6 detectors, 2 doors, 2 in. (5.1 cm) lead shielding - Part Number 48-3263
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Options & Accessories |
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Weight Scale Part Number |
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Stand (16 in.) Part Number 4540-213 |
Light Stack Part Number 4540-209
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Second LCD Monitor Part Number 4540-210 |
4540-127 |
Check Source |
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Technical Information |
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Ludlum Resources |