Dwyer Instruments, Inc.    Michigan City, IN 46361
Apr 26, 2013 Designed for 1–12 in. pipe sizes, Series EFS2 is available in stainless steel, brass, and PVC with variety of custom fittings. Liquid flow through magnetic field produces voltage that is measured and translated into output signal. Capable of measuring flow from 0.28–20 ft/sec with accuracy of ±1% FS, series is suitable for any application where moving parts would by problematic, such as dirty liquids. In addition, sensor can handle applications where there are rapid changes in viscosity and flow.

Dwyer Instruments, Inc.    Michigan City, IN 46361
Apr 05, 2013 Available with brass, stainless steel, PVC, and polypropylene materials, Series PDWS is designed for ½–8 in. pipes and suits chemical proportioning applications or any application with rapidly changing fluid conductivity. Ruby jewel bearings reduce coefficient of friction and maintain accuracy. Covering 0.3–30 fps range and delivering ±1.5% FS accuracy, series features brass, 316 SS, PVC, or polypropylene sensor; PVDF rotor; nickel-bonded tungsten carbide shaft; and EPDM O-ring.

Clark Solutions    Hudson, MA 01749
Mar 29, 2013 With accuracy of 1% of reading, Model PFAD serves applications with flow rates of .06–20 Lpm. Design lets users exchange flow tubes in biomedical, chemical feed, and flow control loop applications. Originally designed for pharmaceutical industry, chemical- and corrosion-resistant sensor has PFA wetted parts with ruby bearings. Optional elements include programmable K factor, flow switch, and programmable batch feedback function for pump control.

Sensortechnics Inc.    Dublin, CA 94568
Mar 27, 2013 Offering flow ranges from 0 to 200 or ±200 sccm and 0 to 1 or ±1 slpm, WBI series includes unidirectional and bidirectional sensors that achieve accuracy of ±2.0% of reading +0.25% FSO. Linear output signal is available via digital I²C bus interface; analog output is available upon request. Utilizing sensitive thermal measuring principle to detect air and gas flows, sensors operate from 2.7–5.5 V supply and are sized to enable space-saving and flexible PCB mounting.

Dwyer Instruments, Inc.    Michigan City, IN 46361
Mar 22, 2013 Available in ¾ or 3/8 in. pipe, Series LOFM liquid mag meter uses conductivity of fluids to measure flow. Liquid flow through magnetic field produces voltage which is measured and translated into pulse output signal. Housed in splashproof HDPE plastic, meter comes with variety of factory-installed adapters and O-rings. With no metal parts, unit is corrosion-resistant and compatible with wide range of chemicals. Meter also has no moving parts, making it suitable for dirty water applications.

Honeywell Sensing and Control    Golden Valley, MN 55422
Dec 13, 2012 Integrating bypass to main flow channel of sensor, digital versions of Zephyr™ HAF Series are designed for direct implementation into main flow channel and provide airflow ranges of 0–20 SLPM (standard liters per minute) and 0–200 SLPM. Total Error Band is ±4% of reading, and accuracy is rated at ±3.5% of reading. Configurable and customizable with multiple interface and package options, flow ranges, and custom calibration, sensors feature interfaces that facilitate integration.

Halma Plc    Cincinnati, OH 45249
Dec 07, 2012 Offering non-contact, remote, and wireless monitoring, battery-powered SonicSens 2 measures distance to water surface and automatically sends alerts to up to 16 phone numbers when level reaches specified thresholds. If alarm condition activates, it can also provide accelerated dial-in functionality, allowing rapid access to detailed information. Intelligent sensor features adjustable range settings, variable dead band/blanking distance, self-diagnostics, and alarm condition in event of echo loss.

MultiDimension Technology    San Jose, CA 95138
Dec 06, 2012 Integrating tunneling magnetoresistance sensors and signal processing ASICs within SOT-23 or TO-92 package, Model MMS101H features bipolar operation with digital latching output, while Model MMS201H provides omnipolar operation that can be triggered by south or north pole. Sensitive operate and release points are ±15 Gauss for MMS101H and ±10/±15 Gauss for MMS201H. Consuming less than 4.5 mA while operating continuously, sensors are intended for battery-powered industrial flowmeters.

Dwyer Instruments, Inc.    Michigan City, IN 46361
Aug 09, 2012 Suited for use with air velocity gauges, transmitters, and switches, Series MAFS utilizes evenly distributed total and static pressure measuring points to deliver accurate measurement of flows in ducts. Blade profile provides optimal performance with minimal flow disruption in air stream. Air flow measuring probe can be completely installed from outside of round or circular ducts. Available from 4-48 in., Series MAFS is useful in HVAC industry.

POSIFA Microsystems Inc    San Jose, CA 95112
Jun 05, 2012 Replacing membrane-cavity structure with solid-state thermal isolation structure on sensor die, PMF2000 Series eliminates field failures associated with pressure shock, humidity, and contamination. Using internal microcontroller, sensors cover ranges from 10-2,000 sccm for both unidirectional and bidirectional flow, and provide 1-5 Vdc linear output with better than 2% FS accuracy. Units are fully calibrated and compensated over temperature range of 0-50°C.

Clark Solutions    Hudson, MA 01749
Apr 11, 2012 Designed for 3 and 4 in. pipe systems, FSI-S00 is constructed with 4-bladed, HDPE impeller; Type 1 PVC sensor housing; tungsten carbide impeller shaft; and BUNA-N O-ring. Sensor is rated to 150 psi and outputs square wave digital signal proportional to flow. Also, pulse signal output will travel up to 2,000 ft without amplification. Installation requires end user to drill pipe and mount saddle, and sensor insert mounts in housing that controls depth and alignment of impeller.

Clark Solutions    Hudson, MA 01749
Apr 11, 2012 Designed for 1, 1½, and 2 in. pipe systems, FSI-T00 Series is constructed with 4-bladed HDPE impeller, Type 1 PVC sensor housing, tungsten carbide impeller shaft, and Buna-N O-ring. Units deliver square wave digital signal output proportional to flow that will travel up to 2,000 ft without amplification. Equipped with threaded retaining nut for servicing, sensors are suited for water treatment systems, water dispensing, cooling loops, irrigation systems, and large scale aquariums.

Honeywell International, Inc.    Morristown, NJ 07960
Mar 07, 2012 Providing flow ranges from ±50 to ±750 SCCM, Zephyr(TM) Analog and Digital Airflow Sensors offer Total Error Band as low as ±2.25% FSS, allowing accurate airflow measurement. Stability minimizes errors due to thermal effects and null shift, providing accurate readings over time and often eliminating calibration after PCB mount. Potential applications include fuel cells, gas meters, and HVAC filters as well as hospital diagnostics, patient monitoring, and ventilators.

POSIFA Microsystems Inc    San Jose, CA 95112
Feb 28, 2012 As drop-in, pin-compatible upgrade to Honeywell AWM3000 series, PMFc3000 series incorporates MEMS and microelectronics technologies and replaces membrane-cavity structure with solid-state thermal isolation process. This promotes reliability by eliminating field failures associated with pressure shock and contamination. While meeting same packaging and calibration specifications of AWM3000, PMFc3000 series offers initial output tolerance to less than 2% FS.

Climatecraft    Oklahoma City, OK 73101
Feb 06, 2012 MatrixMonitor(TM) gauges airflow in arrays with 3-98 fans, with max airflow of 300,000 cfm per array. Offering alternative to fan inlet and piezometric flow monitors, this digital instrument consists of sensors and internal wiring for each fan connected to embedded processor. Solution operates on 100 W power supply and generates one airflow signal for entire fan array. With dual fan array capability, product can operate as stand-alone system or integrate with building automation system.

Honeywell Sensing and Control    Golden Valley, MN 55422
Nov 03, 2011 Delivering ±0.1% BFSL (Best Fit Straight Line) accuracy, Model 425 enables operators to monitor downhole drilling conditions and detect pressure spikes, which promotes accelerated adjustments and control. Model 427, with free flow sensing port @ ±0.2% BFSL, has wider aperture design with rounded edges allowing seamless flow of more viscous media through critical sensing area. This reduces clogging and buildup while providing consistent and accurate pressure measurements.

Sensirion Inc.    Westlake Village, CA 91361
Jul 11, 2011 Able to detect flow rates below 120 mL/min for hydrocarbon-based liquids, SLQ-QT105 offers ~40 msec measurement response time and sensitivity for flow rates down to 3 mL/min. Detection of air bubbles in µL range is also possible, and all wetted materials are made from PTFE or quartz glass. Flow is measured without moving parts and non-invasively through wall of straight flow path. Features include fittings for 4 x 3 mm PFA tubing, digital interface, and RS485 communication.

Sensirion Inc.    Westlake Village, CA 91361
Dec 07, 2010 With 0-3,500 Pa measuring range, fully calibrated and temperature-compensated SDP2108-R offers 8 msec response time and analog output signal with 0-4 V range. Root square output enables measurements at minimal differential pressure (DP) levels, while simultaneously allowing coverage wide dynamic measurement range. Sensor utilizes thermal flow measurement and exhibits freedom from zero point drift.

Degree Controls Inc.    Milford, NH 03055
Nov 18, 2010 Supplied in 1.0 x 0.25 x 0.5 in. package with 0.1 in. pitch, F600 enables electronics manufacturers to anticipate thermal rise before it occurs by directly monitoring airflow at critical board locations. Board level sensor, used for continuous monitoring of airflow in small locations, has air velocity range of 100-1,000 fpm and offers output to sound alarm or reduce system power if loss of air velocity occurs. Communication to sensor is accomplished via I²C or UART interface.

Honeywell International, Inc.    Morristown, NJ 07960
Nov 17, 2010 Suited for customers that are replacing legacy analog parts or who prefer to operate with analog sensors, Zephyr(TM) HAF Series measures mass flow of air and other non-corrosive gases over specified full scale flow span and temperature range. Units provide 2.5% accuracy with maximum stability, minimizing errors due to thermal effects and null shift to provide accuracy over time. With 3.3 Vdc voltage option, units are suited for battery-powered and portable applications.