Cameron NuFlo MC-III EXP Local Flow Analyzer/Totalizer

Overview

The Cameron NuFlo MC-III EXP is an explosion-proof local flow analyzer and totalizer designed to pair directly with NuFlo turbine flowmeters and other pulse-output flow sensors, providing a rugged, field-mounted display and data logging solution for liquid and gas measurement points. Packing a full spectrum of flow measurement functionality into an easy-to-use, six-button keypad interface with an eight-digit odometer-style LCD total display and a separate six-digit rate display, the MC-III EXP gives field operators immediate local rate and total flow readouts without needing to access a separate control room system.

Working closely with plant engineers in the region, Seven Star LLC supplies the Cameron NuFlo MC-III EXP to oilfield production facilities, water transfer stations, and industrial flow measurement installations across Muscat, Sohar, and Salalah, giving operators a certified explosion-proof local totalizer solution for hazardous-area flow measurement applications throughout the Gulf region.

Operating Principle

The Cameron NuFlo MC-III EXP accepts a pulse frequency input from a connected turbine flowmeter or other compatible flow sensor and processes it through onboard electronics that calculate instantaneous flow rate and accumulate total throughput. The unit’s high-speed processing and log archive and retrieval capabilities allow it to capture and store flow data at intervals suitable for detailed production accounting, custody transfer verification, or regulatory reporting, with stored logs downloadable through the unit’s Modbus communications interface.

Because the MC-III EXP is built specifically for gas and liquid measurement in classified hazardous locations, its explosion-proof lithium-powered housing isolates all internal electronics from the surrounding atmosphere, allowing safe operation in the presence of flammable vapors typical of oilfield wellhead, tank battery, and pipeline transfer installations. Local configuration and calibration can be performed directly from the front-panel keypad or remotely through dynamic interface software, giving technicians flexibility in how they commission and maintain each measurement point.

Engineering Design of the Cameron NuFlo MC-III EXP

The Cameron NuFlo MC-III EXP is housed in a rugged, white explosion-proof enclosure rated for local mounting directly at the flow measurement point, with a clear circular LCD window displaying the eight-digit odometer-style total alongside the six-digit rate readout, units, and menu status indicators. A threaded conduit connection on the base of the unit accommodates standard hazardous-area wiring practices for the pulse input and power/communications cabling.

Installation follows standard hazardous-area local flow computer practice: the unit is mounted at or near the flowmeter, the pulse input wiring is connected through the explosion-proof conduit entry, and the unit is powered from its internal lithium battery pack or an external power source depending on the specific configuration ordered. Once powered, the six-button keypad allows technicians to configure engineering units, K-factor or meter factor values, and totalizer reset functions directly at the measurement point, with all settings retained through a non-volatile memory design.
The Cameron NuFlo MC-III EXP carries hazardous-area certification for CSA Class I, Division 1, Groups B, C, and D (explosion-proof, T6 temperature class) as well as ATEX and IECEx approval as Ex d IIC T6 Gb / Ex tD A21 IP66 T85°C, alongside CE compliance with the EMC Directive, giving procurement teams the certification paperwork needed for wellhead and tank battery installations across classified zones in Oman and the wider Gulf. Power is drawn from a 3.6 V DC lithium battery pack rated for roughly two years of typical field service, with an alkaline pack available as a CSA-only alternative, or the unit can run from an external 6 to 30 V DC supply or a loop-powered 4 to 20 mA configuration – in every case retaining internal battery backup so logged data and totals are never lost during a power interruption. The lithium-powered unit is rated for continuous operation from -40°C to 70°C, comfortably covering desert daytime highs and winter overnight lows across the interior of Oman.

Beyond its local rate and total display, the MC-III EXP retains 384 daily logs, 768 hourly logs, and 345 event logs in non-volatile memory, all downloadable through the unit’s Modbus RTU interface – with Enron Modbus support, selectable baud rates from 300 to 115.2 kbps, and 16-bit slave addressing – in under a minute using optional RS-485 or USB adapters, with pulse inputs optically isolated across a 0 to 3500 Hz frequency range matching virtually every turbine flowmeter in common oilfield and water transfer service.

Key Features

The Cameron NuFlo MC-III EXP flow analyzer and totalizer is engineered to deliver dependable, hazardous-area-rated local flow indication and data logging:

• Explosion-proof housing rated for local mounting in classified hazardous locations at wellhead and tank battery sites.
• Eight-digit odometer-style LCD total display with a separate six-digit rate display provides clear, at-a-glance local rate and total flow readout.
• High-speed processing and extensive log archive and retrieval capabilities support production accounting and custody transfer verification.
• Modbus communications enable remote data download and integration with SCADA or flow computer systems.
• Six-button front-panel keypad allows direct field configuration and calibration without additional tools.
• Compatible with NuFlo turbine flowmeters and other pulse-output liquid and gas flow sensors.
• Lithium-powered design supports extended unattended operation at remote measurement locations.
• Supplied on request by Seven Star LLC, with technical support for oilfield and industrial flow measurement teams.

Industrial Applications

The Cameron NuFlo MC-III EXP serves any facility requiring certified, explosion-proof local flow indication and data logging paired with turbine or other pulse-output flowmeters. Typical applications include oilfield wellhead and tank battery liquid production measurement, gas gathering and pipeline transfer station flow totalization, and raw water or produced water transfer line measurement where local, hazardous-area-rated readout and data logging are required for operational and regulatory purposes.

With fast quotation turnaround and technical support, Seven Star LLC distributes this flow analyzer to oilfield service companies, EPC contractors, and utility operators supporting production and transfer measurement infrastructure across the Sultanate of Oman, Muscat, and the Sohar and Salalah economic zones. Lead time confirmed at quotation helps field teams plan the restoration of local flow measurement capability when replacing an aging or damaged totalizer unit.

Technical Specifications

The table below summarizes the key specifications relevant to the Cameron NuFlo MC-III EXP flow analyzer and totalizer.

Request a Quote for Cameron NuFlo MC-III EXP Local Flow Analyzer/Totalizer

Seven Star LLC invites production engineers, instrumentation teams, and procurement leads across Oman and the GCC to submit a formal RFQ for the Cameron NuFlo MC-III EXP explosion-proof local flow analyzer and totalizer. With engineering support in Muscat, we supply on request, provide full technical datasheets on request, and connect customers directly with our instrumentation division for hazardous-area flow measurement support. Contact Seven Star LLC today to confirm availability, lead time, and pricing for your flow measurement project.

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