Visit Us at Sensors Expo June 27-29!

Posted by Seta Davidian on May 18, 2017 1:12:49 PM


Come visit Servoflo at Booth 648 during Sensors Expo June 27-29 in San Jose, California! Here is a great from Sensors Expo:

"The Sensors Conference is where you'll find the best in the sensors industry, along with new and innovative ways to jump start your sensor solutions. It's North America's largest and most comprehensive educational program that brings together thousands of engineering professionals all under one roof.

With updated and expanded tracksexciting and visionary Keynote Presentations, and new Pre-Conference Symposia, the Sensors 2017 Conference Program brings you the leading sensors content that you need to succeed from over 100 industry experts. Expanding the program to include interactive content, applications, demos, and hands-on components, the 2017 Conference will have you walking away with the sensors solutions you need."

Visitors to our booth who share their pressure sensor or mass flow sensor application is elible to enter our drawing for a $100 Amazon gift card!


Topics: Sensors Expo, Pressure Sensors

Pressure Sensor Clearance Sale!!

Posted by Seta Davidian on Jan 19, 2017 12:07:16 PM


We have some specific pressure sensors on sale! Take a look at our clearance inventory for heavily discounted opportunities. These parts have never been used by customers. Check back frequently for updates.

Model Description Qty  Price  Comments
XFGM-6100KPGSR Fujikura pressure sensor, 0-100 kPa, 2.5% accuracy, surface mount 6 mm port 865 $1.00 or best offer Various lots since 2007, must purchase in reels of 500 pcs.
33A-002F-3210-R Sensormate SLP Series, SMT, 0-2 psi, 0.5 to 4.5V output, tape & reel 10,754 $3.75 or best offer From 2014 & 2015. Must purchase reels of 250 pcs.
AG203-050KG-TP Fujikura pressure sensor, 0-50 kPa, 1.5% accuracy, surface mount, 3 mm port, 5V supply, tape & reel 6,000 $3.00 or best offer Brand new! From 2016 & 2017. Must purchase in reels of 500 pieces

ag2.jpgPayment terms are prepayment via check or credit card only. No performance guarantees or warranties are in effect. The pdf data sheet is in the model number link. The quantity available is subject to change without notice.

Contact us or call us at 781-862-9572 to make an offer.

Topics: Pressure Sensors

Ceramic Pressure Sensors - Application Examples

Posted by Seta Davidian on Dec 12, 2016 11:05:29 AM


Ceramic pressure sensors from Metallux have unique features making them ideal in many applications. These features include:

  • Long-life
  • Robust and reliable
  • High temperature tolerance
  • Ability to have direct contact with liquids and harsh media
  • Washable

Servoflo has in depth experience in helping customers integrate ceramic sensors into their designs. Here are some examples:

  • Utilizing a ceramic sensor to develop an oil level sensor in an automotive application
  • Hydraulic & emissions controls for other types of transportation equipment
  • Industrial transducer development for use in the gas & oil industries as well as heavy manufacturing
  • Semiconductor applications to measure process flows
  • Level sensing applications such as reservoir water level management, wastewater controls and chemical processing
  • Food & beverage applications to monitor ingredient flow
  • HVAC pressure transducers to measure refridgerant levels

One of the most important aspects of our customers' success is the wide range of ceramic sensors offered. Our ceramic pressure sensor line includes many models with unamplified mV signals or signal-conditioned with analog or digital outputs. Customers can use sensors with the mV output if they are able to do signal conditioning and calibration. This allows the customer to modify pressure ranges, output, and accuracy to meet their specific application. The fully calibrated versions with voltage, 4-20 mA or I2C come in two levels of accuracy. Customers can do offset calibration after packaging the ceramic sensor. A customer can utilize these many options in one particular sensor model to create a family of products that can be offered to their own customers. 

housing.pngUnlike typical board mount pressure sensors, ceramic pressure sensors do need to be packaged. Our team of experts can assist you in designing the ideal package for your application. Furthermore, Servoflo offers a special evaluation mounting kit called MEKIT 0400 to help users test ceramic pressure sensors.  This kit costs $145 and is useful for the following 18 mm diameter Metallux sensors: ME501/ME505/ME662/ME651/ME75X/ME77X/ME780.

Learn more about Metallux ceramic pressure sensors

Download the information on the MEKIT 0400

Download Ceramic Pressure Sensor Product & Pricing Guide

Topics: Ceramic Pressure Sensors, Pressure Sensors

Water Level Pressure Sensor FPWS

Posted by Seta Davidian on Nov 14, 2016 1:22:05 PM

water level pressure sensorServoflo is pleased to announce the FPWS Water Level Sensor. The FPWS is a gauge pressure sensor for -49 kPa to 68.5 kpa with a linear voltage output. The sensor is oil-filled for specific use in tank level measurement applications. Typical water exposure is tap water with or without bath or cleaning agents.

Below is a sample bath system using the FPWS.


The following cross sectional diagram illustrates the sensor in detail. Items marked in red are exposed to the water.


No. Part Material
1 Housing PPS
2 Cover PBT
3 PC Board FR4
4 Pin Copper Alloy Sn plating
5 Pressure sensor  
6 O ring  
7 Plate SUS
8 Fluorine oil  


Applications where the FWCS can be used include:

  • Consumer bath systems
  • Gas & oil heaters
  • Heat pumps
  • Solar heaters
  • Fuel cells

Download the data sheet


 Contact Us About the FPWS


Topics: Pressure Sensors

Sensor Design Engineering Services

Posted by Seta Davidian on Sep 26, 2016 11:48:16 AM

gauge.jpgServoflo, a premier supplier of pressure, mass flow, environmental sensors and micropumps,  is pleased to announce expansion of its design engineering services for custom sensor development. The objective is to be a primary resource for customers who require modification or customization of sensors and how they are integrated into product designs. Services include but are not limited to:

  • adding flex to a sensor
  • creating a custom flow path for mass flow sensors
  • adding Wi-Fi or BlueTooth™ capabilities to a sensor
  • adding a display
  • custom packaging enclosures
  • hybrid circuit design

flex.jpgThis one-stop solution provides customers with efficient and reliable design expertise without having to manage multiple vendors as well as streamlining assembly. Purchasing a complete solution saves customers money and time. Often, a bill of materials is reviewed and pressure is put on individual component costs. This strategy neglects the labor needed to inspect, integrate, and test various separate components such as a sensor element, cable, and package. A complete sensor solution can actually reduce overall bill of materials and labor costs. This sensor design strategy is also important for customers who may not have design expertise in these areas.

Specific application examples include:

  • Creation of a pressure gauge with display and enclosure
  • Hybrid circuit design to integrate a pressure sensor and electronics for better protection in a high temperature and high humidity environment
  • Adding a flex cable to a standard board level sensor to eliminate the assembly and testing steps at installation
  • Customized sensor calibration and output to meet a specific customer requirement
  • Design of a special flow path in a mass flow sensor for medical equipment
  • Design custom electronics to create a pressure or mass flow switch (or other environmental sensor)

If you have a special requirement you would like to discuss, please utilize the button below for fastest response.

 Discuss a custom solution

Topics: Ceramic Pressure Sensors, Pressure Sensors, Mass Flow Sensors

Key Factors When Selecting A Pressure Sensor

Posted by Seta Davidian on Jul 19, 2016 11:20:10 AM

presentation.jpgAt Sensors Expo, held this past June in San Jose, David Ezekiel gave a special show floor presentation titled Key Factors When Selecting a Pressure Sensor. This presentation was created for those new to pressure sensors.

Presentation highlights included a discussion about:

  • The advent of MEMs sensors and resulting new product features
  • New applications using pressure sensors
  • The huge number of manufacturers and models, each having slightly different features, accuracies and packages
  • The paradox of choice - how too many options results in selection errors and overall dissatisfaction

The presentation detailed how to narrow these choices by looking at the skill set in your organization, overall product & system requirements, and other factors such as time frame, second sources, and contact manufacturers.

By understanding the application basics, mechnical, electrical, and assembly factors, a user can then begin to narrow down the myriad of pressure sensor choices. For example, when should a user pick a lower cost unamplified, uncalibrated sensor over a calibrated and compensated sensor with more features but higher cost?

For new users of pressure sensors, it is easy to get caught in this paradox of choice and be oversold on a sensor with features that may not be needed. Take a look at the presentation, and learn about how to not fall into this trap.


Need help deciding which pressure sensor and conrfiguration is best for your project? Our experts have put together a Pressure Sensor Selection Guide to help you find the right solution for the right price. 


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Topics: Pressure Sensors

How to Choose an O-Ring for TR Series Pressure Sensor

Posted by Seta Davidian on Jun 2, 2016 3:36:10 PM

harsh media pressure sensorThe following is a short synopsis of a new application note for the TR Series harsh media pressure sensor.

The TR Series Pressure Sensor is a fully calibrated, back side pressure sensor for use with any media that is also compatible with silicon, glass, ceramic and solder. The TR Series is designed to be used with an o-ring, creating a face seal to the back of the sensor.

When designing an o-ring face seal, several environmental factors much be taken into consideration:

  • Temperature - What are the minimum/maximum temperatures for both operation AND storage? Does the temperature vary during operation or is it stable?
  • Pressure range - Identify the minimum and maximum pressures. Are they positive, negative or both? Fluctuating or constant?
  • Media - Identify what is in your media. What are the exposure conditions (temperature, pressure and concentration of chemicals in media). The backside is exposed to the harsh media while the front is exposed to another environment. This front side must be protected from harsh media.

Some o-ring features for users to decide include material and geometry options.

  • Material - Different o-ring materials have different temperature handling abilities. A soft o-ring will provide a very compliant seal but many not seal well at high temperatures. A hard o-ring would seal well at high pressures but may induce high packaging stresses.
  • Geometry options - O-ring size (both OD and cross-section) must ensure that media will not leak at the minimum and maximum pressure and operating temperatures.

The bottom line is to test with static and dynamic analyses in addition to customer verification, as each application is a unique combination of temperature, pressure and media.

Access the complete application note

Learn more about the TR Series


Topics: Pressure Sensors

FSP1000 Ultra Low Pressure Sensor

Posted by Seta Davidian on May 17, 2016 2:33:17 PM
fsp1000-header.jpgServoflo is pleased to announce the FSP1000 Ultra Low Pressure Sensor. This sensor is designed to measure ±1" H2O up to ±2" H2O. With a compensated temperature range of -5°C to 65°C, the FSP1000 has a fast response time of 5 milliseconds and has an I2C with 12 bit resolution and linear voltage output of 0.4 to 2.4V. The supply voltage is 3.0 - 3.6 VDC.
This sensor has a flow through design and can be placed in any orientation without affecting performance. The pneumatic flow resistance is less than 95 ml/min at 500 Pa. The sensor is fully compensated for altitude.
Typical applications include but are not limited to medical, HVAC, instrumentation, critical containment and more. 
Download Low Pressure  Product & Pricing Guide

Topics: Pressure Sensors

Monitoring HVAC Filter & Fan Units With AMS5105 Pressure Sensors

Posted by Seta Davidian on Feb 22, 2016 11:40:26 AM

ams5105.jpgAnalog Microelectronics has an application note discussing how to monitor HVAC fan and filter performance using the AMS5105 pressure sensor. The AMS5105 is a board-mount, compensated and calibrated pressure sensor with an analog ratiometric 0.5 to 4.5V output along with two discrete, programmable logic switching ports. For each switching port, the switching function, threshold, hysteresis and delay can be set individually. Having low differential pressure calibration from 100 mbar down to 5 mbar, the AMS5105 is ideal for fan and filter monitoring systems.

Included with the application note are the following four application examples with circuit drawings :

  1. Simple HVAC Filter Monitoring System With Pre-Warning - Here the switching ports are programmed as normally-open and hysteresis is set to 5% of the calibrated pressure range. 
  2. HVAC Filter Monitoring System with a 24V Supply and Robust Outputs - Similar to the first example but includes details what to do if only 24VDC is available as a supply.
  3. HVAC Filter and Fan Monitoring System With Diagnostics - Learn how to set up the switching ports for normal and filter replacement
  4. HVAC Monitoring System with Diagnostics Measured at an Orifice - Similar to #2 but measurement is taken across an orifice to protect the sensor from contaminants. 

Here is the circuit drawing for item #1, Simple HVAC Filter Monitoring System With Pre-Warning:


As you can see, this application note gives great details on how to use the AMS5105 for HVAC filter monitoring. We hope you find it as a useful tool that can be applied across many different applications.

Learn more about the AMS5105

Download the complete application note

Download Low Pressure  Product & Pricing Guide 


Topics: Pressure Sensors

Pressure Sensors for Leak Detection

Posted by Seta Davidian on Feb 9, 2016 10:06:35 AM

Different methodologies exist for creating leak detection systems. In this blog post, we will focus on leak detection using a pressure decay method which is ideal for detecting very small leak rates.

The diagram below illustrates a classic leak detection setup using pressure decay.


The test part is pressurized from a pressure source. At the first X under "Balance" in the chart above, the pressure setpoint is reached and balance is maintained until the leak detection test begins at the second X. The regulator and valve isolate the test part from the source once pressurization is complete. The pressure sensor monitors and measures the pressurized test part. If the pressure measurement decreases, then air is leaking out of the test part. Measuring the change in pressure over a period of time allows the user to calculate the leak rate.

pressure sensors with threshold detection ap ag series fujikuraThe availability of easy-to-use, sensitive pressure sensors at low cost lets designers optimize their leak detection design. The AP3/AG3 Series is an example of a pressure sensor well-suited for leak detection applications. The AP3/AG3 is a calibrated and temperature-compensated pressure sensor with ranges from 0-25 kPa up to 0-1000 kPa. Not only does this sensor have high accuracy of ±1.5% full-scale, the AP3/AG3 has built-in threshold detection (consider how easy it is to set the threshold for the start of the leak test). The AP version has a dual-in-line package while the AG version is surface-mount. With a price of of approximately $7 (depending on the model) at 1,000 pieces, the AP3/AG3 provides has an excellent price-performance ratio.

Applications for leak detection include:

  • Medical devices such as drug delivery, catheters, valve, oxygen delivery
  • HVAC including refridgerant testing, heat exchangers, tubing, radiators, and more
  • Automotive testing such as emission systems, fuels, pumps, and cooling systems
  • Various industrial applications

Learn more about the AP3/AG3 or

Get Fujikura Pricing Now


Topics: Pressure Sensors

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