At 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 AP
/AG Pressure Sensor Series are high performing gauge pressure sensors with calibration ranges from 0-25 kPa up to 0-1 MPa. With a high accuracy of +/-1.5% FS and a wide temperature compensated range of 0-85C, the AP/AG Series are an ideal alternative for those considering NXP (formerly Freescale) or Honeywell Sensors. The AP represents the through-hole version while the AG represents the surface-mount package. The 3 basic model families include:
Users can order sensors with a smooth or barbed port with either 3 mm or 6 mm length. In addition, the sensors can be ordered with a specific input voltage range of 5, 3.3 or 3.0 Volts.
Servoflo offers a large number of ultra low pressure sensors for under 10" H2O. Here is a short summary of some examples:
FSP1000is a flow through differential pressure sensor for +/- 1" H2O or +/-2" H2O. These sensors are fully calibrated and compensated from -5C to 65C with an analog or digital output. These sensors accept a 3 to 3.6V supply.
SM9541 &
SM9543. The SM9541 is a gauge or differential sensor with ranges from 0.15 psi up to 2 psi with temperature compensation from -5 to 65C. The output is calibrated digital I2C. The SM9543 is similar but has a lower range of +/- 0.7 psi with a differential configuration only.
AL4 has various pressure ranges from 0- 1 kPa (0.145 psi) up to 0-10 kPa (1.45 psi). With a gauge configuration, there are various power supply options including 5V, 3.3V or 3.0V. The AL4 has dual barbed ports.
Alpha Instruments has 12 different capacitive pressure sensor models in various packages including plastic, screw terminals, stainless steel, din rail, NEMA4 or LED display. Various ranges starting at 0.1" H2O. Output choices include voltage or current in either a uni or bi-directional configuration.
The FS4001 mass flow sensors are manufactured using Siargo's proprietary MEMS flow sensor and packaging technology. The sensors are specially designed for low flow rates from 0-30 sccm up to 0-1000 sccm. With a high overpressure of 5 bar (73 psi), the FS4001 can be used in a wide range of applications including instrumentation (such as mass spectrometry), leak detection, process control, gas flow metrology and medical applications. The FS4001 requires a power supply of 8-18 VDC and provides an analog (0.5 to 4.5 VDC) and/or digital user interface (RS232). The calibration is generally performed with nitrogen at 20C and 101.325 kPa pressure rating. Calibration with other gases and conditions available upon request.
The
mp6 micropump has many excellent documents for users to better understand and utilize the mp6 pumps. Today we are highlighting some of the more popular application notes and instructions as a way to inform you of various tips.
mp6 Controller Overview - This is an important tech note to understand the various controller options (mp-x, mp-eva, Quad-Key & Quad-OEM) available for the mp6 pump.
