Contrec 515 Ideal Gas Flow Computer (GC02)

Name: Contrec 515 Ideal Gas Flow Computer (GC02)
Brand: Contrec
SKU: 515–GC02
Availability: InStock

SKU: 515–GC02 Category: Digital Indicators Tag: Contrec 515 Series

Email Us WhatsApp Us Follow Celectric's WhatsApp Channel

The Contrec Model 515 (Application GC02) is a high-accuracy industrial general gas flow computer explicitly optimized to interface with analog volume flowmeters, such as vortex or turbine meters. This advanced processing core uses common industry-standard equations of state, applying a simplified set of parameters to quickly and accurately determine the values of compressibility and actual gas quantity for vapor and non-liquefied gas lines. To accommodate changing flow profiles with premium precision, the hardware supports stacked analog flow inputs and applies multi-point non-linear correction matrices to map the flowmeter’s physical behavior perfectly. Enclosed in an IP65 weatherproof housing featuring a backlit alphanumeric LCD display, it delivers heavy-duty data integrity and definitive audit safety. Complete with an onboard adjustable 8-24V DC sensor excitation supply, isolated 4-20mA loop retransmission, and dual RS-232/RS-485 Modbus RTU serial architecture, it serves as a robust fiscal tracking center for modern plant automation networks.

Key Product Features

Analog Volumetric Optimization: Tailored specifically to capture standard 4-20mA, 0-5V, or 1-5V analog signals from vortex, turbine, or traditional gas flowmeters.
Stacked Transmitter Input Option: Incorporates dual stacked analog flow inputs to expand the overall measurement turndown ratio and retain exceptional low-flow accuracy.
Simplified Gas State Formulations: Combines real-time temperature and pressure analog sensor inputs to accurately resolve complex gas density factors with minimal computational lag.
Onboard Sensor Power Supply: Reduces field cabling footprints by delivering a front-panel software-adjusted 8-24V DC excitation output providing up to 50mA to directly power field transmitters.
Comprehensive Audit Logging: Onboard non-volatile flash memory and a built-in Real Time Clock (RTC) store over 1,000 entries of process totals, fluid averages, and system alarms.

Contrec Model 515 GC02 Technical Specifications
● POWER SECTION
Power Supply Options	115 Vac ±15% standard 230 Vac ±15% option (Model code selection 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 gas totalizers, data logs, hardware constants, 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 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, Corrected Volume, Corrected Flowrate, Mass, Mass Flowrate, Temperature, Pressure, and Compressibility Factor.
● PERFORMANCE
Calculation Accuracy	Better than ±0.01% of reading for all internal flow metrics, mass calculation parameters, and industry-standard gas equations of state.
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.