New V2 System Flow Meter, The Space Saver, Delivers High Accuracy, Economy For Water & Wastewater

Ideal For Water Wells, Pump Stations, Raw Water Influent,

Reclaimed Water And Finished Water Effluent

The V2 System Flow Meter has an advanced differential pressure flow sensing design. The unit features built-in flow conditioning for superior accuracy. The V2 System is the ideal new or retrofit flow meter for multiple clean water and wastewater treatment applications.

The V2 System is especially useful when irregular or crowded piping and equipment make magnetic, turbine or venturi tube meters impractical or unworkable. Other flow technologies often require complex or expensive construction. The V2 System reduces initial costs substantially. The unit eliminates longer straight-run piping requirements.

V2 System's pre-packaged, built-in 3-way valve isolates the transmitter from the process fluid flow for easy maintenance. No need to shut down the pipeline. The flow meter arrives wet-flow calibrated direct from the factory. The ready-to-install V2 reduces many headaches of adding a flow meter to most flow installations.

Key features include:
- Installation: Typically 0-3 diameters upstream; 0-1 diameter downstream
- Acts as its own flow conditioner

- Displays both rate of flow and total flow
- Integral or remote mounted flow display
- Accuracy up to +/-1% of rate
- Flow range: 10:1
- Totalizer pulse and linear 4-20 mAdc outputs
- No parts to wear so little maintenance required
- Line sizes 4" to 18" or greater
- Precise and reliable readings under changing flow conditions

NuFlo developed its first flowmeter for oil field applications in 1957. The meter incorporated a tungsten-carbide shaft and bearing to withstand the rugged conditions of the oil field environment. Over the years, this flowmeter has built an unsurpassed reputation for withstanding severe punishment while maintaining operational and measurement integrity.

NuFlo turbine flowmeters indicate flow rate and measure total throughput of a liquid line. As liquid flows through the meter and over the rotor, the rotor turns at a speed that is directly proportional to the flow rate. A magnetic pickup senses the rotor blades as they pass and generates an electrical (sine wave) signal. These electrical pulses are then transmitted to the flow measurement readout equipment.

Benefits

• More accurate and repeatable measurement
• An economical solution for turbine flowmeter applications
• Easy installation and a variety of end connections
• Minimum maintenance required
• Long service life even in severe applications

The Laureate Model FRT is a UL-listed, 6-digit panel meter which can simultaneously track rate and totalized rate from the same pulse input. The display can be toggled between rate and total at the push of front panel key or external switch. When used with a turbine flow meter, the unit can display rate in units of flow, such as GPM, or totalized flow in units of volume, such as Gallons.

To determine rate, the Laureate FRT first calculates frequency by timing the period between pulses with crystal accuracy, and then multiplies this frequency by a user-programmed scale factor.

The Laureate FRT can also display rate and totals for non-flow applications that utilize a sensor with a pulse output. For example, the unit can display linear speed by timing pulses from a proximity switch, and display total length by integrating these pulses. For rate measurements, the pulse rate can be from 0.05 Hz to 1 MHz.

The Laureate FRT can operate with a wide range of pulse inputs. Exceptional flexibility is provided by the unit's universal dual-channel signal conditioner, which accepts magnetic signals from 12 mV to 250 Vac as well as signals from proximity switches with a PNP or NPN output, TTL or CMOS logic, and contact closures. Jumper selections provide optimum operation for different sensor types and noise conditions.

A built-in isolated 5, 10, or 24 Vdc excitation supply is standard to power proximity switches and other sensors. Options include dual relays for control or alarm, isolated 4-20 mA and 0-10V analog outputs, and an RS232 or RS485 port for data communications with a host computer or PLC. Modbus RS485 is fully supported.

The base price is $270. For more information and pricing of options, visit www.laurels.com/frequency.htm

R-700 and R-800

Now available, two new explosion proof electronics options for GPI turbine meters. The R-700 offers 4-20mA output with Rate and Total display while the R-800 is a Rate and Total display only. Both are mounted in x-proof housings and are designed to mount directly to any G or G2 Series meter. Both feature 20 point linearization and magnetic total reset. Either version can be purchased in a local or remote mount configuration.

Hedland flow meters and flow switches are the industry standard. The product line includes over 10,000 variable area, turbine, and positive displacement meters, as well as pressure indicators, for liquids and gases. The rugged in-line variable area meters can be installed at any angle and perform at +/- 2% full scale accuracy. High pressure and high temperature models are available. Hedland also manufactures the Flo-tech line of portable hydraulic testers, designed for fast, diagnostic troubleshooting of mobile and stationary hydraulic systems and components. The Flo-tech line also includes turbine flow sensors with magnetic pickup, ported for optional pressure and temperature transducers, with or without digital readout.

The UL-listed Laureate Dual-Channel Pulse Totalizer provides two channels, A&B, which may be independently set up and scaled to count up from zero (or other value) to a preset limit, or count down from a preset value to zero (or other limit). Scaling allows direct readout in engineering units, such as gallons, based on counts from a turbine flow meter. Totals are stored in non-volatile memory.

The six-digit counter display is capable of displaying any value from -999,999 to 999,999 with programmable decimal point. The displayed channel (A or B) is selected via a front panel pushbutton.

The minimum recommended option for the Laureate totalizer is a dual setpoint controller output board, which is available with either 10A Form C relays or AC/DC solid state relays.

An optional Extended counter version provides capabilities beyond those of the standard counter:

* Rate and total simultaneously. Channel A can display total while Channel B displays rate. * Up/down counting. Channel A can serve as an up/down counter, where the count direction is dynamically changed by applying a signal to Channel B.
* Totalizing with external inhibit. Totalizing by Channel A can be temporarily inhibited by applying a signal to Channel B.
* Custom curve linearization. Exceptionally accurate custom curve linearization is achievable, for example to linearize the low end of turbine flow meters.
* Arithmetic functions. Channels A & B can be combined mathematically: A+B, A-B, A*B, A/B and A/B-1. For example, A+B allows two input flows to be summed for total volume, while A-B allows outflow to be subtracted from inflow for net volume. A/B allows the mixing of ingredients in a specified ratio. By monitoring and alarming the A/B volume ratio, ingredient B can be added to A until the proper ratio is achieved.

Exceptional flexibility is provided by the unit's universal dual-channel signal conditioner, which can accept magnetic signals from 12 mV to 250 Vac as well as signals from proximity switches with a PNP or NPN output, TTL or CMOS logic, or contact closures. Jumper selections provide optimum operation for different sensor types and noise conditions.

A built-in isolated 5, 10, or 24 Vdc excitation supply is standard to power proximity switches and other sensors. Options include dual relays for control or alarm, isolated 4-20 mA and 0-10V analog outputs, and an RS232 or RS485 port for data communications with a host computer or PLC. Modbus RS485 is fully supported.

The base price is $230. For more information and pricing of options, visit www.laurels.com/totalizer.htm