Contrec 515 Steam Flow Computer (SC03)

Name: Contrec 515 Steam Flow Computer (SC03)
Brand: Contrec
SKU: 515–SC03
Availability: InStock

SKU: 515–SC03 Categories: Digital Indicators, Flow Computers Tag: Contrec 515 Series

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The Contrec Model 515 (Application SC03) is a heavy-duty industrial steam energy flow computer designed specifically for differential pressure mass flowmeters utilizing single or stacked transmitter configurations. Engineered to serve as a fiscal calculation core, this advanced instrument implements generic differential pressure flow equations while fully incorporating the reference calibration conditions of the primary element. To expand the overall measurement range and retain exceptional precision during low-flow processing states, the hardware supports stacked differential pressure analog inputs. A core advancement in the SC03 software pack is its capability to accept a Specific Enthalpy (initial energy) offset, allowing precise enthalpy adjustments and net energy balances. Real-time mass flow and thermodynamic variables are continuously evaluated via the international IAPWS-IF97 Industrial Formulation (1997) across water, saturated steam, and superheated steam phases. Protected by an IP65 field-mounting enclosure featuring a backlit LCD screen and an ergonomic keypad, it ensures secure local data tracking, isolated 4-20mA retransmission, and dual-port RS-232/RS-485 Modbus RTU serial communication for advanced utility plant telemetry.

Key Product Features

DP Mass Meter Specialization: Designed specifically for differential pressure mass flow elements, processing primary field calibration states within real-time equations.
Specific Enthalpy Offsetting: Integrates unique offset variables to execute customizable initial energy enthalpy adjustments and track net specific enthalpy.
IAPWS-IF97 Steam Formulations: Leverages live analog temperature and pressure loops to resolve exact thermodynamic properties, specific volume, and specific enthalpy changes.
Onboard Transducer Power Supply: Features an integrated, front-panel adjustable 8-24V DC excitation output providing up to 50mA to eliminate secondary sensor power loops.
Robust Audit Tracking: Onboard non-volatile flash memory combines with an integrated Real Time Clock (RTC) data logger to securely capture over 1,000 entries of process totals, logs, and diagnostic states.

Contrec Model 515 SC03 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.
Data Security Retentivity	Non-volatile flash memory ensures that all steam totalizers, user variables, and system logs remain permanently stored during full plant power failure events.
● INPUT SECTION
Differential Pressure Inputs	Single or dual stacked analog differential pressure input channels. Configurable Signal Formats: 4 to 20 mA current loops, 0 to 5 Vdc, or 1 to 5 Vdc voltage signals. Signal Customization: Programmable linear scaling, noise filtering, and custom low-flow cutoff boundaries.
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, Corrected Volume, Mass, Mass Flowrate, Temperature, Pressure, Energy, Power, Specific Volume, Specific Enthalpy, Specific Enthalpy Adjust, and Specific Enthalpy Net.
● PERFORMANCE
Calculation Accuracy	Better than ±0.01% of reading for all internal generic differential pressure mass equations, enthalpy offsets, and mathematical IAPWS-IF97 density solutions.
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.