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Specifications
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Performance Specifications
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Precision
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From ±0.001gm/cc depending upon application
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Repeatability
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±0.001gm/cc depending upon application
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Stability
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Drift less than ±0.05% of radiation change over 6 months
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Resolution
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Analog output 16-bit Internal instrumental IEEE754 floating point
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Magnetic Field Effect
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No effect on output when tested to IEC 770 para. 6.2.11
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Ambient Temperature Field
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±0.09% of radiation change per °C; ±0.06% of radiation change per °C
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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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115/230VAC ±10%; 50 to 60Hz
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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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Type
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Cs-137 or Co-60, both stainless steel, doubly encapsulated
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Size
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10 to 10,000mCi Cs-137 or 1000 to 3000mCi Co-60
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Functional Specifications
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Detector
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PVT plastic scintillator with wide dynamic range (PVT resists shock and moisture damage); Stabilization via electronic control without heater stabilization for optimum performance
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Operating Temperature Limits
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Transmitter/Detector: -40° to +60°C (-40° to +140°F) ambient
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Storage Temperature Limits
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-30° to +65°C (-22° to +149°F)
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Inputs
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Flowmeter: 4 to 20mA linear; Dry contact closure; Temperature compensation circuitry with 100ohm platinum RTD 2 or 3 wire
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Current Outputs
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4 to 20mA isolated, self-powered into 700ohms, field scalable RS 485 duplex
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Serial Outputs
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RS 423 or Bell 202 interface with HART* protocol; Digital signal superimposed on 4 to20mA signal using HART protocol, available for control system interface; Digital signal available via intrinsically safe connection for HART Communicator
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Contact Closure Inputs
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Two programmable dry contact inputs
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Contact Closure Outputs
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Two 115VAC/28VDC SPDT at 10A (230VAC SPDT at 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 function and ratio linearization
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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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Adjustable Damping
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1 to 1040 sec.
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Adaptive Damping
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See Dynamic Process Tracking
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Dynamic Process Tracking
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Selectable; Automatic 8 to 1 time constant reduction based on process rate of change
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Transmitter
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System architecture: 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; Programming options: Menu-driven offers direct keypad entry; HART Smart Model 375 handheld terminal: used to setup and calibrate gauge, and to enter data; Communicates with any
DensityPRO via the current loop; BEL202FSK standard; Thermo Scientific 9734 handheld terminal: used to setup and calibrate gauge, and to enter data; communicates with any DensityPRO via the RS485 connector; provides upload/download of gauge configuration to/from PC via RS232 interface; Comm PC Interface Software: interface with up to 32 DensityPRO units over RS485 loop (RS485 to RS232 converter provided)
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Physical Specifications
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Electrical Connections
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Two 0.75 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 9734 handheld terminal
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Gauge Mounting Hardware
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Gamma ray source: integral bolt-on bracket; Compatible with chain or saddle mount; Transmitter/Detector: single or dual chain universal mount 63.5mm (2.5 in.) to 914.4mm (36 in.); Pipe saddle mount 50.8mm (2 in.) to 1066.8mm (42 in.); Tabs for mounting on insulated pipes
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Housing
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Detector: Carbon steel polyurethane painted or optional SS 316; Source: carbon steel or optional SS 316, lead filled, polyurethane painted; two position shutter, locks in closed position
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Weight, Detector/Electronics
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4.5kg (10 lb.)
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