Contrec 515 Steam Flow Computer (SC04)

Name: Contrec 515 Steam Flow Computer (SC04)
Brand: Contrec
SKU: 515–SC04
Availability: InStock

SKU: 515–SC04 Categories: Digital Indicators, Flow Computers Tag: Contrec 515 Series

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The Contrec Model 515 (Application SC04) is an advanced, industrial-grade steam mass and energy flow computer engineered specifically for differential pressure meters operating under ISO 5167 (2003) or V-Cone calibration standards. Designed to serve as a fiscal measurement core for complex thermal utility loops, this sophisticated instrument features built-in mathematical profiles supporting 9 distinct ISO 5167 primary element types (including orifice plates, nozzles, and venturi tubes) and 2 specialized cone categories. To expand the overall operational range without losing precision during low-flow processing states, the system natively integrates stacked differential pressure analog inputs. Mass flow and thermodynamic energy variables are dynamically resolved in strict accordance with the international IAPWS-IF97 Industrial Formulation (1997), providing tailored multi-mode logic for water, saturated steam, and superheated steam applications. Enclosed in a ruggedized, weather-sealed IP65 weatherproof housing, it delivers heavy-duty data protection for steam utility lines. Complete with an onboard adjustable 8-24V DC sensor excitation supply, isolated 4-20mA loop retransmission, and dual-port RS-232/RS-485 Modbus RTU serial architecture, it ensures secure local tracking and definitive audit transparency.

Key Product Features

Standardized DP Flow Integration: Native processing of ISO 5167 (2003) parameters for 9 distinct primary elements and V-Cone algorithms for 2 cone configurations.
IAPWS-IF97 Thermodynamic Math: Implements comprehensive international formulations to resolve exact real-time specific volume and specific enthalpy across water, saturated steam, and superheated steam phases.
Stacked Transmitter Optimization: Configured to manage dual stacked differential pressure analog inputs to dramatically broaden the measurement turndown ratio.
Onboard Sensor Power Supply: Features an integrated, front-panel adjustable 8-24V DC excitation output providing up to 50mA to eliminate secondary field power loops.
Comprehensive Audit Trail Logging: Non-volatile flash memory combines with an internal Real Time Clock (RTC) data logger to securely capture over 1,000 entries of totals, rates, and diagnostic states.

Contrec Model 515 SC04 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 totalizers, hardware constants, data logs, and system configurations during full plant power failure events.
● INPUT SECTION
Differential Pressure Inputs	Single or dual stacked analog differential pressure input channels configured for ISO 5167 or V-Cone loops. Configurable Signal Formats: 4 to 20 mA current loops, 0 to 5 Vdc, or 1 to 5 Vdc voltage signals. Signal Processing: Active filtering, programmable low-flow cutoff boundaries, and linear extraction.
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 Differential Pressure.
● PERFORMANCE
Calculation Accuracy	Better than ±0.01% of reading for all internal flow equations, ISO 5167 configurations, and mathematical IAPWS-IF97 steam calculations.
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 required for maximum environmental operating range and to avoid damage from moisture and corrosion.