Nova-Flow Flow Computer

Product catalog summary

Introduction: The Nova-Flow Series by Hoffer Flow Controls is a versatile range of flow computers designed for various applications including rate and total flow display, batch control, and thermal energy measurement. With over 500,000 configurations, these devices support up to four flowmeter inputs and multiple temperature, pressure, and density inputs. They offer a variety of outputs and control interfaces, including up to three serial communication ports.

Features: The series includes Nova-Flow, Nova-Batch, and Nova-Energy models, each supporting different numbers of inputs and outputs. Key features include two-stage batch control, multiple batch modes, flash memory, infrared optical port, and Windows-based setup software. All models offer temperature, pressure, and density compensation, and support 20-point linearization.

General Specifications: The display is a 128x64 graphical interface with LED backlight and adjustable contrast. The keypad includes 3 softkeys and 14 assigned keys. The CPU is a 16-bit, 40 MHz processor with 512 kB flash memory. Environmental specifications include an operating temperature range of -20°C to 50°C and storage temperature of -40°C to 85°C.

Enclosure and Power Supply: The units are housed in a 1/2 DIN panel mount aluminum housing with optional explosion-proof NEMA 4X. Power supply options include 10 to 30 Volt DC and 110/220 AC.

Approvals and Compliance: The devices comply with CE, Class I, DIV 2, and various international standards such as AGA 8/API 14.2 and ISO 6551.

Installation and Configuration: The Nova-Flow series supports field-expandable hardware and software, allowing easy module addition or replacement. The base unit provides one flowmeter input and 8 digital I/O lines, with 8 expansion slots for optional modules.

Hardware Specification: The base unit supports various flowmeter inputs and digital I/O configurations. Optional I/O modules include dual RTD and analog input, analog output, dual relay, RS232 and RS485 ports, and high-speed pulse out modules.

Quality Assurance: The quality system for design, manufacture, and testing is certified to ISO 9001 standards. Specifications are subject to change, and users should verify current specifications with the manufacturer.

Catalog excerpts

HOFFER FLOW CONTROLS, INC.HOFFER FLOW CONTROLS, INC.www.hofferflow.comwww.hofferflow.com >

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Max. Number of Flowmeter Inputs 4 2 Pulse & 2 Analog 1 2 Max. Number of Temperature & Pressure Inputs 2 of each 1 of each 2 of each Max. Number of Density Inputs 2 1 2 Max. Number of Analog Outputs 2 2 2 Max. Number of Serial Ports 3 3 3 2 Stage Batch Control No Yes No Max. No. of Alarm/Relay Outputs 2 2 2 Max. No. of TTL/CMOS Pulse Inputs/Outputs 8 8 8 Two-Level Password Protection Yes Yes Yes Multiple Batch Modes (Manual, Auto, Auto-Continue & Remote) No Yes No Flash Memory Yes Yes Yes Infrared Optical Port/Interface (Modbus Protocol) Yes Yes Yes Max. No. of Fluid Property Tables 4 4 4 Windows-Based...

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Fluid A Fluid B ComputerTurbine FlowmeterOr Positive DisplacementMeter Turbine FlowmeterOr Positive DisplacementMeter P P T T D D TM ELIZABETH CITY, NCHOFFER FLOW CONTROLS, INC. NOVA - FLOW PLC 2 3 Industrial Network 5 6 741 8 9 +/- . PalmTopInfrared TempOut Approvals and Regulatory Compliance CPU > Meets: AGA 8/API 14.2 AGA 7 OIML Tc 8 Sc 7, R117, R118 ISO 6551, 7637 NIST Handbook 44, 3.37 IR Interface Enclosure >

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Field expandable hardware and software Easy to add/replace module. Software configurable based on installed modules. > Dual RTD and dual Analog Input Module Includes two RTDs and two analog inputs. RTD selectable for 100, 1000, 2500, and DIN 100 Ohms. Analog inputs software configured for temperature, pressure, density, specific gravity or flow. Accuracy: 0.025%. Resolution: 12 bit. Range: 4-20mA, or 1-5V. Overvoltage, overcurrent protected. > Alarms Multiple visual/audio alarms. HI/LO, HI/HI, LO/LO. > Batch, BTU Single/Dual Stage batch operations. Count UP/DOWN. BTU functions (Cooling, Heating,...

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