Contrec 515 Petroleum Consumption Flow Computer (FP02)

Name: Contrec 515 Petroleum Consumption Flow Computer (FP02)
Brand: Contrec
SKU: 515–FP02
Availability: InStock

SKU: 515–FP02 Category: Digital Indicators Tag: Contrec 515 Series

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Brand: Contrec

The Contrec Model 515 (Application FP02) is a heavy-duty industrial petroleum consumption flow computer engineered to perform precise multi-channel “delta” net volume and mass balancing. Tailored specifically for differential fuel tracking where feed flow exceeds return flow, this advanced device processes two separate analog flow inputs simultaneously. To deliver exceptional precision under volatile process temperatures, each measurement channel features a companion analog temperature input that applies real-time volume correction back to reference conditions. Volumetric compensation calculations are executed in strict accordance with ASTM D1250-04 and ASTM-IP-API Table 54 standards, making it fully compatible with gasolines, jet fuels, heating oils, diesels, lube oils, LPG, and custom fluid blends. Enclosed in a weather-sealed IP65 industrial housing with an alphanumeric backlit LCD interface, it offers exceptional field ruggedness and audit security. Complete with isolated 4-20mA loop retransmission, dual RS-232/RS-485 Modbus RTU serial links, and an adjustable 8-24V DC excitation supply, it serves as the definitive consumption analytics engine for modern automated plant networks.

Key Product Features

Delta Net Consumption Math: Specialized processing model built to accurately calculate net fluid mass and volume usage by subtracting a return line from a feed line.
Dual-Channel Temperature Compensation: Harnesses independent temperature inputs per line to perform highly accurate density corrections to reference states.
Broad Petroleum & Liquid Scope: Native correction tables accommodate a wide cross-section of crude and refined petroleum lines, LPG, as well as general and user-defined custom fluids.
Onboard Transducer Excitation: Features an adjustable, software-controlled 8-24V DC output voltage from the front panel to power connected field transmitters.
Non-Volatile Real-Time Logging: Non-volatile memory pairs with an integrated Real Time Clock (RTC) data logger to capture more than 1,000 entries of process logs, totalizer data, and system alerts.

Contrec Model 515 FP02 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 & Data Security	Non-volatile flash memory ensures that all fuel consumption totalizers, configuration parameters, and history records remain permanently stored during full plant power failure events.
● INPUT SECTION
Analog Flowmeter Inputs	Two separate analog flow input channels to monitor the feed and return loops. Configurable Signal Formats: Normalizes incoming analog flows into a unified value (A) between 0 and 1. Supports standard current/voltage loops. Signal Correction: Multi-point non-linear correction filters can be assigned to map customized meter calibrations.
Compensation Analog Inputs	Two independent analog temperature inputs (RTD Pt100 or linear 4 to 20 mA current loops) for dedicated channel-by-channel volume correction.
● OUTPUT SECTION
Analog Retransmission Loop	Fully isolated 4 to 20 mA DC analog retransmission channel with programmable range scaling.
Digital Pulse Retransmission	Open collector transistor output featuring software-defined volumetric scaling factor and adjustable pulse width duration.
Serial Communications Port	RS-232 Configuration: Standard connection link optimized for local PC terminal programming or direct ticket printing. RS-485 Configuration (Optional): Multi-drop serial bus supporting long-range data tracking. Supported Protocols: Modbus RTU (Slave), standard Ticket Printer, and Contrec command-line protocols.
Fascia Operator Interface	Backlit alphanumeric LCD display showcasing custom tags and units. Main menu tracks: Net Volume 1 & 2, Delta Net Volume & Net Flowrate, Delta Mass & Mass Flowrate, Temperature 1 & 2, Delta Temperature, and Gross Volume / Flowrate 1 & 2.
● PERFORMANCE
Calculation Accuracy	Better than ±0.01% of reading for all internal mass balancing algorithms, ASTM D1250-04 correction tables, and multi-fluid density lookups.
Analog Transmittance Precision	Better than ±0.05% of full scale range under reference conditions.
Data Logging Matrix	Integrated Real-Time Clock (RTC) logging matrix 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 Input Interface	Ergonomic elastomeric tactile keypad providing direct operator command interaction.
● 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.