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Specifications
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Performance Specifications
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Precision
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0.5% of span typical
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Stability
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0.5% of span typical
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Response Time
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1 to 1054 seconds
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Radiation Field Required
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Application dependent; consult Thermo Fisher Scientific
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Ambient Temperature Field
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Standard: -40°C to +60°C (-40°F to +140°F)
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Surface Radiation
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Dependent on the application, source selection and physical installation
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Power
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115 or 230VAC ±10%, 50 to 60Hz or 24VDC available; Surge protected to 9 to 35VDC
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Power Supply Effect
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No effect on operation over specified power supply ranges
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Gamma Ray Source
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Source Type
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Cs-137 or Co-60, both stainless steel, doubly encapsulated
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Source Size
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Cs-137: 10 to 10,000 mCi; Co-60: 1000 to 3000 mCi; Source size dependent on application
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Source Housing
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Carbon steel, lead filled, polyurethane painted; Stainless steel; Water-cooled option available in both carbon and stainless steel; Two position shutter, locks in Off (closed) position
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Functional Specifications: Transmitter/Detector
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Detector Type
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PVT plastic scintillator with wide dynamic range; PVT resists shock and moisture damage
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System Architecture
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Multiprocessor-based electronics provide uninterrupted output during data entry and system interrogation
Surface-mounted technology provides high degree of reliability; All user data doubly stored in non-volatile memory with no battery backup required
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Software
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Comm PC Interface Software: Interface with up to 32 LevelPRO units over RS485 loop (RS485 to RS232 converter provided)
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Programming
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HART Smart Model 275/375/475 Handheld Terminal: used to setup and calibrate gauge, and to enter data
Communicates with any LevelPRO via the current loop; BEL202FSK standard
Thermo Scientific 9734 Handheld Terminal: used to setup and calibrate gauge, and to enter data; Communicates with any LevelPRO via the RS485; connector provides upload/download of gauge configuration to/from PC via RS232 interface Foundation Fieldbus
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Operating Temperature Range
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-40°C to +60|C (-40°F to +140°F) ambient
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Storage Temperature Limits
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-30°C to +65°C (-22°F to +149°F)
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Inputs
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Signal from another LevelPRO detector; Additional input for gas density compensation or buildup available
Dry contact closure
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Current Outputs
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4 to 20mA isolated loop-powered into 800ohm, field scalable; 4 to 20mA isolated self-powered into 800ohm, field scalable
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Serial Outputs
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RS485 half duplex; RS232 full duplex
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Contact Closure Inputs
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2X programmable dry contact inputs
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Contact Closure Outputs
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Two 115VAC/28VDC SPDT @ 10A (230VAC SPDT @ 8A)
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Source Decay Compensation
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Selectable Cs-137, Co-60 or Am-241
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Linearization
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Logarithmic and multipoint characterization
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Analog Output Adjustment
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Engineering units and range values user-selected; All analog trim and adjustments made through software commands
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Circuitry
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Digital; Fully integrated
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Physical Specifications
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Electrical Connections
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Two 3/4 in. NPT fittings; HART Communicator interface connects directly into 4 to 20mA loop
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Interface Cable
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Shielded 14 to 22 gauge Belden 9318
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Transmitter Display
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Thermo Scientific Model 9723: two line, 16 alphanumeric character, backlit LCD; Powered from electronics
Maximum separation from electronics 91.4m (300 ft.)
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Mounting Hardware
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Integrated transmitter/detector: integral bolt-on bracket; Gamma ray source: integral bolt-on bracket
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Housing
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Detector: Carbon steel, polyurethane painted; Optional 316 stainless steel; Optional water-cooled detector for high temperature applications
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Size
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Standard detector lengths are in 1 ft. increments from 1 to 12 ft. (0.3m to 3.6m);
Multiple detectors can be wired together for large measurement spans (unlimited in number)
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Weight, Detector/Electronics
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Size dependent; consult Thermo Fisher
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