Model 54

Small Article Monitor

Part Number: 48-3263

Features

• Large Sample Volume: 130 L (4.6 ft³)
• True 4π counting geometry for optimized homogenous efficiency
• QPASS counting technology for shorter counting cycles
• Large 30.7 cm (12.1 in) color LCD with touch screen interface
• USB port for printer-free operation & calibration
• User-selectable operating modes
• Auto calibration routine

Automating routine contamination frisking using instruments like Ludlum's Small Article Monitor is a well-proven methodology for ensuring that items leaving controlled areas are clean. Ludlum's new Model 54 has adopted time-tested and proven concepts, gathered from throughout the industry, and integrated them into a new, ground-up design that employs the latest computer and detector technologies. The result is a more robust, user-friendly, and cost-effective design than any other currently available.

Central to the design is the detector chamber, which is configured to deliver the largest and most sensitive detection volume presently available for this type of monitor. The specially-designed, large area, 5 cm (2 in.) thick plastic scintillator detectors are arranged to optimize the sensitivity throughout the chamber. A stainless steel liner protects the detectors while facilitating decon. The chamber can be configured with either four or  six detectors, and either 2.5 or 5.1 cm (1 or 2 in.) of lead. The lead is shipped separately and easily loaded on site.

The Model 54 is equipped with two doors, which can be mounted with either a left- or right-hand swing. Hardened steel door 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 may be configured by the user to support logistics for single or pass-through type operation.

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 large 30.7 cm (12.1 in.) touch screen LCD. An optional second LCD mounted to the opposite side is available where desired, as in the case of pass-through type operations.  The screens are designed to be very intuitive and are accompanied by a large push-button to activate sample counting, and two smaller push-buttons for updating the background or acknowledging any alarms. The main counting screen is locked, with password control access via the touch screen, to either routine check functions at one level or a second level accessing all parameters.

The electronics support the latest Ludlum detector boards, which are connected to a PC-based fan-less controller motherboard 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, Ludlum's Model 54 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.

• Specifications
• Available Configurations
• Options
• Documents

• Specifications
• Available Configurations
• Options
• Documents

Specifications

Chamber	Internal Dimensions (H x W x L): 50.8 x 50.8 x 50.8 cm (20 x 20 x 20 in.) Detection Volume: 130 L (4.6 ft3) Liner Material: Stainless steel, 0.79 mm (0.031 in.) thick
Detectors	Four or six detector configurations available Scintillator: EJ-200 plastic Size (H x W x L): 48.26 x 48.26 x 5.08 cm (19 x 19 x 2 in.)
Doors	Reversible door swing Door hinges are heavy duty rated, incorporating ball bearings for smooth operation Door locks to control single- or dual-door operation
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 under 5 seconds
Temperature Range	0 to 50 °C (32 to 122 °F)
Size (H x W x L)	139 x 90.9 x 95.3 cm (54.7 x 35.8 x 37.5 in.)
Weight	0 cm (0 in.) of Lead: approximately 544 kg (1200 lb) 2.5 cm (1 in.) of Lead: approximately 1315 kg (2900 lb) 5.1 cm (2 in.) of Lead: approximately 2087 kg (4600 lb) (Lead is shipped separately and installed on site.)

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Available Configurations

Part Number	Description
48-3728	4 detectors, 2 doors, 2.5 cm (1 in.) lead shielding
48-3727	4 detectors, 2 doors, 5.1 cm (2 in.) lead shielding
48-3726	6 detectors, 2 doors, 2.5 cm (1 in.) lead shielding
48-3263	6 detectors, 2 doors, 5.1 cm (2 in.) lead shielding

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Options

Option	Description	Part Number
Ludlum Universal Software	Collects and displays radiation levels and alarm status from multiple Ludlum instruments, including area monitors, sample monitors, and portal monitors. The instrument must be equipped with Ethernet interface. Using this interface, the area instrument can be connected to the network allowing for real-time monitoring of radiation data, email alerts, and database logging. A standard web browser is used to view the current status and query the data.	1370-093
Small Article Monitor Stand		4540-213
Stacked Lights		4540-209
Second LCD Monitor		4540-210

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Documents

• Data Sheet
• Product Manual
• CE Certificate
• Ludlum Article Monitor Comparison Table
• M54-Series Calibration Testing Worksheet for Customers
• Calibration and Testing Procedure

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