Micronics Portable Ultrasonic Flow Measurement

About Micronics Flow Measurement

Micronics ultrasonic flow meters are widely used in the Energy Management and retrofit Building Services markets in the UK and around the world to help reduce energy consumption and monitor water use. Our extensive range of products includes: Ultrasonic Clamp-On Flow Meters, Portable & Fixed Liquid Flow Meters, Energy Meters for heating and cooling applications and in-line MID approved ultrasonic energy and water meters for direct billing applications with a radio-based automatic reading system.

Since its inception Micronics have sold clamp-on water meters in more than 50 countries. Concentrating mainly on portable “Time of Flight” meters, some of which are marketed under the registered trade name of Portaflow™. Our clamp-on flow meters for many purposes continue to grow in popularity. clamp-on flow meters img

Flow sensors detect and then measure flow rates from the outside of the pipework, without any interruption to flow or process. In addition, for Process or Water industry applications, we can provide Clamp-On, full pipe or “Doppler” open channel flow meters for contaminated or dirty liquid flows.

In addition to product supply, Micronics offer a wide range of flow measurement solutions. Combining the Micronics product range with Flow Analysis software and expert staff to conduct flow surveys. Starting with the introduction of the first portable instrument, the company now markets a range of different products including “Time of Flight” and “Doppler” technology.

The range includes portable instruments and fixed meters based on the use of non invasive ultrasonic sound transmission. This detects liquid flow velocity within closed pipes or open channels. There are Energy options for clamp-on fixed meters, tank and level meters are also available.

Types of  Ultrasonic Flow Meter

The two types of Flow Meter, Transit Time (Time of Flight) and Doppler and they are both available in a clamp-on meter style with transducers. These are used to detect and then measure flow rates from the outside of the pipework, without any interruption to flow or process. Ultrasonic clamp on flow meters readings are altered by acoustic properties of fluids and impacted by density, viscosity, temperature and suspended particulates. These are all dependent on the type of flow meter.

Applications of an Ultrasonic Flow Meter

Ultrasonic Flow Meter applications include measuring liquid flow in full pipes as well as the measurement of liquids such as water, wastewater, acids and solvents, chemicals, hydrocarbons and oils. These can also be used to monitor and control heating, ventilation and air conditioning systems. They are perfect for applications where flow disruption is simply not an option.

Micronics Flow Measurement Product

The Micronics product range is also available on a competitive hire basis to provide emergency cover for failed meters. They provide customers with the tools to undertake their own short term flow survey work.

Micronics Portable Flow Measurement
Micronics Portable Flow Measurement

Energy Meters, Energy Management, Building Services & Group or District Heating Schemes

  • Data Loggers – Energy and Building
  • Heat Meters
  • Energy Calculators
  • MID/RHI Products
  • Ultrasonic Flow Meters
  • Ultrasonic Heat Meters
  • Fixed Clamp-on Flow Meters
  • Portable Flow Meters – Clamp-On
  • Water Sub-Metering

Water & Environmental

  • Ultrasonic Flow Meters
  • Flow Switches
  • Data Loggers
  • Wastewater Meters
  • Level Meters – Water and Environmental
  • Portable Ultrasonic Flow Meters
  • Clamp on Flow Meters
  • Open Channel Flow Meters
  • Ultrasonic Water Meters

Manufacturing and Processing

  • Wastewater Meters
  • Level Meters
  • Ultrasonic Flow Meters
  • Data Loggers – Mfg and Process
  • Flow Switches – Mfg and Process
  • Open Channel Flow Measurement
  • Portable Clamp-on Flow Meters
  • Fixed Clamp-on Flow Meters
  • Water Meters

Micronics PF LV550 Portable Area/Velocity meter 

Area-Velocity Flow Measurement in Open Channels and Pipes

PF LV550 measures Level and Velocity in open channels or pipes. No calibration is required. The sensor is a completely sealed ultrasonic unit with no ori ces or ports. It mounts inside the pipe or at the bottom of a channel. The watertight electronics enclosure is hung in the manhole or at a convenient location. Sensor mounting bracket, batteries, software and cables are included with each PF LV550.

Micronics PF LV550 Portable velocity meter
Micronics PF LV550 Portable velocity meter

This compact new meter operates on standard alkaline batteries for extended time periods to log level, velocity and water temperature in open channels, partially full sewer pipes and surcharged pipes without a flume or weir. It is
designed for municipal storm water, combined effluent, raw sewage, irrigation water and stream flow.

PF LV550 uses a submerged ultrasonic sensor to continuously measure both Velocity and Level in the channel. The sensor has no moving parts and is resistant to fouling and corrosion.

Portable instrument for open channel and part filled pipe flow measurement and logging. 

  • Compact, rugged, water tight, dustproof
  • Up to 4 years logging from Alkaline “D” cells
  • Free onboard Windows compatible analysis software
  • Large capacity memory store
  • USB data download
  • For part filled pipe and open channel monitoring
  • Built in display
  • Long term datalogging capability
  • Portable and Easy to use
  • Streamlined sensor for invasive measurement

Technical Information

  • Electronics Housing:– 232 x 192mm x 111mm, polycarbonate, 4.5kg.
  • Operating Temp. Range:– -20°C to +60°C.
  • Set-Up:– Via Windows compatible on-board software.
  • Display:– LCD Bar Graph selectable Displays:- Memory, battery, temp, velocity, level.
  • Logger Interval:– 10secs (15 days) to 20mins (4 years).
  • Data Capacity:– 130,000 Data points.
  • Output:– USB.
  • Power:– 4 Alkaline “D” cells.
  • Velocity Range:– 0.03m/sec to 3m/sec.
  • Level Range:– Minimum Head 25.4mm, Maximum Head 4.5metres.
  • Sensor Operating Temp Range:– -15°C to +65°C (5°F to +150°F).

Features

  • Easy to Operate
    • No calibration is required.Just install the sensor at the  bottom of the pipe or channel and the PF LV550 logs level and velocity readings. Use the Logger software (included) to set the logging interval, and to view readings in real-time on your laptop or PC. PF LV550’s built-in LCD display lets operators check level and velocity rates, remaining battery life and logger memory.
  • Efficient, Battery Powered
    • With 4 standard Alkaline D-cells the PF LV550 will operate and data logger for extended time periods. (For example: logging at 5 minute intervals the PF LV550 batteries will last for 12 months and store over 105,000 separate level, velocity and temperature readings!)

How it Works

The sensor transmits ultrasonic pulses that travel through the water and reflect on the liquid surface. To monitor water level, the PF LV550 precisely measures the time it takes for echoes to return to the sensor. Velocity is measured with an ultrasonic signal continuously injected into the now.

This high frequency sound is reflected back to the sensor from particles or bubbles suspended in the liquid. If the fluid is in motion, the echoes return at an altered frequency proportionate to flow velocity.

The PF LV550 uses this Doppler frequency shift to accurately calculate flow velocity

Specifications PF LV550

General 
Electronics Enclosure: Watertight, airtight, dust proof (IP 67) polycarbonate
Accuracy: Level: ±0.25% of Range. Velocity: ±2% of Reading
Display: LCD displays: Level, Velocity, WaterTemperature, Battery and Memory capacity
Operating Temp. (electronics): -20° to 60°C (-4° to 140°F)
Instrument Set-up: via Logger software forWindows: LoggingTime Interval, Site Name
Logger Interval: 10 sec (15 days),30 sec (45 days),1 min (3 months), 2 min (6 months),5 min (1 year), 10 min (2 years), 20 min (4 years)
Data Logger Capacity: 130,000 data points
Power: 4Alkaline‘D’ cells
Output/Communications: RS232,28,800 Baud
RS232 Cable: 6 m (20 ft)shielded with DB9 M/F connectors
Software: Logger forWindows.Supports real-time monitoring, log le download an export, graph and data table presentation,level/velocity to  ow conversion
QZ02 Sensor
Velocity Measurement Range: 0.03 to 3.05 m/sec (0.1 to 10 ft/sec)
Level Measurement Range: Minimum Head:25.4 mm (1 in). Maximum Head:4.5 m (15 ft.)
Operating Temperature: -15 to 65°C (5 to 150°F)
Exposed Materials: PVC,polyurethane, epoxy
Sensor Cable: 7.6 m (25 ft.) submersible polyurethane jacket, shielded, 3-coaxial
Sensor Mounting: includes MB-QZ stainless steel mounting bracket
Temperature Compensation: Automatic, continuous
Options
Sensor Cable Extension: shielded 15 m (50 ft.)submersible, polyurethane jacket with watertight connectors
Sensor Mounting Bands Stainlesssteel sensor mounting bands for pipes from 150 to 1800 mm (6” to 72”)

Portaflow PF333/PF222 Portable Clamp-on Ultrasonic Flow Meter

THE NEW PORTABLE CLAMP-ON FLOW METER FROM MICRONICS, FOR SIMPLE, ACCURATE FLOW MEASUREMENT FROM OUTSIDE THE PIPE!

Our portable flow solutions are ultrasonic, clamp on and non-invasive, for closed pipe applications. This means no interruption to process and no downtime whilst the portable flow  meters are installed. The Portaflow range brings simplicity to the non-invasive measurement of liquid flow. Portaflow offers the user quick and accurate flow measurement. And with its easy to follow menu and simple set up results can be achieved within minutes of opening the case!

Portaflow Portable Ultrasonic Flow meter
Portaflow Portable Ultrasonic Flow meter

The Portaflow range brings simplicity to the non-invasive measurement of liquid flow and hydronic energy. Portaflow offers the user quick and accurate flow and energy measurement with its easy to follow menu and simple set up. Results can be achieved within minutes of opening the case! Compact, rugged and reliable, the Portaflow range has been designed to provide sustained performance in industrial environments.

  • Ultrasonic, cross-correlation flow measurement n Reynolds number correction
  • Easy to install
  • Simple to follow set-up menu
  • Clamp-on flow and temperature sensors (IP54 with IP68 option)

Application/use:

  • HVAC and flow system surveys,
  • Check system meters,
  • Pump verification,
  • Boiler testing,
  • Leak detection,
  • Filter sizing,
  • Ultrapure water measurement,
  • Heavy fuel oil metering,
  • Condensate measurement,
  • Balancing systems,
  • Clean in place evaluation,
  • Fire system testing,
  • Hydraulic system testing

PORTAFLOW PF333 Portable Ultrasonic Liquid Flow/Heat Meter

SPECIFICATION

  • Temperature sensors with PF333 energy meter.
  • Improved data logger logs energy and flow all date stamped.
  • Measurement Technique: Ultrasonic, cross-correlation transit time method for flow measurement and PT100 Class B 4 wire for temperature measurement.
  • Heat Meter Standard: The Heat/Energy calculation is designed to comply with EN1434 section 6.
  • Temperature sensors: Clamp-on PT100 Class B 4 wire, range 0°C – 200°C (32°F – 392°F), resolution 0.1°C (0.18°F). Minimum delta T is 0.3°C IP54 with IP68 option.
  • Carry Case: The PF333 is supplied in a hard wearing IP67 carry case.
  • ‘A’ Transducers: 13mm OD to 115mm OD pipes IP54 with IP68 option.
  • ‘B’ Transducers: 50mm OD to 2000mm OD pipes IP54 with IP68 option.
  • Transducer Operating Temp: ‘A’&‘B’ -20°C to +135°C. ‘A’&‘B’ Optional Hi-Temp -20°C to +200°C. Turn Down Ratio: 100:1.
  • Data Communications: USB, supports most USB 2.0 BOM drives.
  • 3 x Pulse Output: Pulse or Frequency. Opto-isolated MOSFET relay.
  • Max Current: 150mA. Isolation: >100V AC/DC. Pulse for volume flow and alarms, frequency for flow rate. The pulse outputs can be configured including: flow totals, energy, loss of signal, low flow alarms.
  • 4-20mA Output: 4-20mA flow proportional output, optically isolated 1500 volts, 620 ohms maximum load.
  • Volumetric mode: Pulse repetition rates: up to 50 pulses/sec (depending on pulse width).
  • Frequency mode: Max. pulse frequency: 200Hz
  • Flow at max frequency: User selectable
  • Data Logging: 100,000,000 data points. 12 named sites. Download via USB to CSV file and export to Excel. Logs application details, time, date, flow rate, forward total, reverse total, flow velocity, flow side temperature, return side temperature, temperature difference, power, total energy, signal quality, signal SNR, signal status.

PORTAFLOW PF222 Portable Ultrasonic Liquid Flow Meter

SPECIFICATION

  • Now available with both A and B sensors.
  • Carry Case: Polypropylene case, with foam insert and double wall for extra strength.
  • PF222A with ‘A’ Transducers: 13mm OD to 115mm OD pipes IP54 with IP68 option.
  • PF222B with ‘B’ Transducers: 50mm OD to 1000mm OD pipes IP54 with IP68 option.
  • Transducer Operating Temp: ‘A’& ‘B’ -20°C to +135°C.
  • Turn Down Ratio: 100:1.
  • 3 x Pulse Output: Pulse or Frequency. Opto-isolated MOSFET relay.
  • Max Current: 150mA. Isolation: >100V AC/DC. Pulse for volume flow and alarms, frequency for flow rate. The pulse outputs can be configured including: flow totals, loss of signal, low flow alarms.
  • 4-20mA Output: 4-20mA flow proportional output, optically isolated 1500 volts, 620 ohms maximum load.
  • Volumetric mode: Pulse repetition rates: up to 50 pulses/sec(depending on pulse width).
  • Frequency mode: Max. pulse frequency: 200Hz.
  • Flow at max frequency: User selectable.

PORTAFLOW PF333 and PF222 Product Features

  • New cross correlation flow measurement system
  • Flow Range – 0.1m/sec to 20m/sec bi-directional
  • Sensor cables, blocks and temp sensors: IP54 with IP68 option.
  • Display – 64 x 240 pixels graphic display
  • Set-up via 16 key control panel
  • Battery or mains operation
  • Rechargeable NiMH battery
  • Battery Life – 14 hours 2.5 hours charge time, depending on load
  • Power – 110 – 240VAC +/-10% supply via PSU
  • 4 user selectable languages including English, German, French and Spanish
  • Accuracy Pipe ID > 75mm – ±0.5% to ±2% of flow reading for flow rate >0.2m/s
  • Accuracy Pipe ID 13-75mm – ±3% of flow reading for flow rate >0.2m/s
  • CE approved

How does it work?

The Portaflow 333/222 is a transit time ultrasonic flow meter designed to work with clamp-on transducers,
to provide accurate measurement of liquid flowing within a closed pipe, without the need for any mechanical parts to be inserted through the pipe wall or to protrude into the flow system. It takes just a few minutes to install and there is no need to shut down flow or drain the system!

When ultrasound is transmitted between the transducers, its velocity is slightly increased when travelling in the direction of flow, and slightly reduced when travelling against the flow. The resulting transit time difference is directly proportional to the velocity of the flow in the pipe. Having measured the flow velocity and knowing the pipe cross-sectional area, the volumetric flow can be easily calculated. Hydronic thermal energy, heat or cooling load is calculated from a combination of the flow rate and the flow and return temperature difference or delta T to comply with EN1434 section 6.

Source: micronicsflowmeters.com

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