Contrec 515 Steam Flow Computer (SC02)

Name: Contrec 515 Steam Flow Computer (SC02)
Brand: Contrec
SKU: 515–SC02
Availability: InStock

SKU: 515–SC02 Category: Digital Indicators Tag: Contrec 515 Series

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The Contrec Model 515 (Application SC02) is an industrial-grade analog steam energy flow computer engineered specifically to monitor steam loops utilizing standard volumetric analog transmitters, such as vortex or turbine meters. Built to process thermodynamic properties in strict accordance with the IAPWS-IF97 Industrial Formulation (1997), this advanced math engine combines live analog volume flow inputs with companion pressure and/or temperature sensors to accurately compute mass flowrate and total energy content. The instrument accommodates wide process variations cleanly by supporting stacked analog flow inputs and applying multi-point non-linear correction matrices to maximize low-flow precision. Housed in a weather-tight IP65 weatherproof housing featuring an alphanumeric backlit display and a tactile keypad, the Model 515 SC02 delivers high-integrity data retention and audit trail safety. Outfitted with an adjustable 8-24V DC sensor supply, isolated 4-20mA loop retransmission, and dual-port RS-232/RS-485 Modbus RTU serial communication, it serves as a definitive fiscal tracking center for modern plant automation networks.

Key Product Features

Analog Volumetric Optimization: Specifically tailored to capture standard 4-20mA, 0-5V, or 1-5V analog signals from vortex, turbine, or traditional steam meters.
Stacked Transmitter Integration: Incorporates dual stacked analog flow inputs to broaden the overall measurement turndown ratio and preserve low-flow loop precision.
IAPWS-IF97 Steam Formulations: Resolves exact real-time calculations of specific volume and specific enthalpy across water, saturated steam, and superheated steam configurations.
Onboard Transducer Power Supply: Reduces field cabling footprints by delivering a front-panel software-adjusted 8-24V DC excitation output providing up to 50mA to power field transmitters.
Extensive Multi-Protocol Telemetry: Standardized with simultaneous isolated analog retransmission, scaled open collector pulse outputs, and serial links supporting Modbus RTU and Ticket Printers.

Contrec Model 515 SC02 Technical Specifications
● POWER SECTION
Power Supply Options	115 Vac ±15% standard (Optional: 230 Vac ±15% layout via model code E) 12 to 28 Vdc external field loop power input
Transducer Power Output	Adjustable 8 to 24 Vdc sensor excitation voltage regulated via software controls; maximum continuous current capacity up to 50mA.
Memory Retentivity	Non-volatile flash memory permanently stores accumulative steam totalizers, hardware constants, data logs, and system configurations during full plant power failure events.
● INPUT SECTION
Analog Flowmeter Inputs	Single or dual stacked analog flow channels. Configurable Signal Formats: 4 to 20 mA current loops, 0 to 5 Vdc, or 1 to 5 Vdc voltage signals. Signal Correction: Multi-point non-linear correction filters can be assigned to better reflect the flowmeter’s calibrated behavior.
Compensation Analog Inputs	Analog Temperature Input: RTD (Pt100) or linear 4 to 20 mA process loop. Analog Pressure Input: 4 to 20 mA active linear transmitter input.
● OUTPUT SECTION
Analog Retransmission Loop	Fully isolated 4 to 20 mA DC current loop retransmission output channel with programmable range scaling.
Digital Pulse Retransmission	Open collector transistor output featuring software-defined volumetric scaling factor and adjustable pulse width duration.
Serial Infrastructure	RS-232 Port: Dedicated port optimized for direct PC terminal setup or local ticket receipt printing. RS-485 Port (Optional): Multi-drop serial bus supporting robust long-distance plant networking. Supported Protocols: Modbus RTU (Slave), standard Ticket Printer, and Contrec command-line protocols.
Local Display Screen	Backlit alphanumeric LCD display showcasing raw Volume, Volume Flowrate, Mass, Mass Flowrate, Temperature, Pressure, Energy, Power, Specific Volume, and Specific Enthalpy.
● PERFORMANCE
Calculation Accuracy	Better than ±0.01% of reading for all internal flow metrics, mass equations, and mathematical IAPWS-IF97 steam parameters.
Analog Transmittance Precision	Better than ±0.05% of full scale range under reference conditions.
Data Logging Matrix	Real-Time Clock (RTC) event log memory block capturing over 1,000 entries for continuous process audit tracking.
● PHYSICAL
Mechanical Housing Layout	Molded field-mounting enclosure utilizing high-rigidity impact polymers (Optional flush panel mount, pipe track mount, or deployment within a heavy Ex410 explosion-proof housing).
Tactile Operator Array	Robust elastomeric keyboard layout providing precise tactile user input feedback.
● STANDARDS CONFORMITY
Environmental Safeguarding	Standard IP65 weatherproof frontal fascia shield protection. *Note: Conformal PCB coating (Option C) is highly recommended to protect internal circuits from harsh humidity and ambient chemical corrosion.