Pressure switches suitable for up to 1 MPa

July 2002 Pressure Measurement & Control

SMC offers a wide range of pressure sensors for general use on pneumatic systems as well as for fluids compatible with SUS304 and SUS630. These include remote, digital, and mechanical type switches for pressures up to 1 MPa.

A remote sensor, PSE, offers IP66 protection and high accuracy, with the output displayed on an LED screen that has a built-in keypad. This controller can process the information from two remote sensors and has a selection of outputs (two channels), and a hysteresis or window comparator function option.

The ISE range of pressure switches includes all the features of the remote switch as well as NPN, PNP or 1-5 V analog outputs and a backlit option. They come with one or two outputs, depending on the model. Both the remote PSE and the ISE are also available as vacuum switches. The ISE devices exhibit a standard protection to IP40, but this may be increased to IP67 when using a special enclosure. Compact in size, (30 x 30 mm) the ISE comes in a panel-mount or standard, 1/8" BSPT, screw-in version. A keypad on the face of the gauge allows for the setting of the hysteresis or window comparator parameters and the reversal of the switching function, as per the PSE.

IS3000 series mechanical air pressure switches may operate with an AC or DC supply, with currents up to 10 mA and they can interface directly with PLCs, relays etc. The GP46 pressure gauge and switch combination is suitable for visual confirmation as well as configured as normally open or normally closed by means of a micro switch inside the gauge. An LED on the face of the gauge makes this mechanical pressure switch a convenient and simple pressure-monitoring device.

For more information, contact Hyflo SA, tel: 011 444 2400, e-mail: [email protected]

Further reading:

VEGA handles the pressures of water treatment systems
VEGA Controls SA Pressure Measurement & Control
A water treatment system for a major metropolitan area in the Midwestern United States demands careful monitoring and management of processes across its sprawling network. Choosing VEGA for its process automation needs meant more than just obtaining precise and reliable pressure sensors.

Read more...

---

Pressure sensors for hydrogen applications
Instrotech Pressure Measurement & Control
Keller manufactures isolated piezoresistive pressure sensors. The great advantage of the piezoresistive measuring principle is its high stability.

Read more...

---

Sensor technology for cartonboard machine for paper and packaging
VEGA Controls SA Pressure Measurement & Control
Paper and packaging specialist, LEIPA undertook a comprehensive modernisation project, combining three stock preparation lines into one, and making investments in new plant components and extensive automation technology. Because of the good experiences the company had already had with VEGA sensors, those responsible for planning and maintenance decided in favour of the VEGABAR 82 pressure transmitter as the standard instrument for level and pressure measurement in the new stock preparation system.

Read more...

---

Pressure measurement without risk of contamination
WIKA Instruments Pressure Measurement & Control
Injectables are among the most sensitive products in the pharmaceutical industry. Sterility is essential during production. For this reason, a manufacturer of biopharmaceuticals decided to implement the pressure monitoring of its processes with hygienic instruments from WIKA.

Read more...

---

Pressure monitoring for oil and water tempering machines
Instrotech Pressure Measurement & Control
Temperature plays a significant role in many manufacturing processes. In such cases, a tempering machine is used to maintain the manufacturing process at the desired temperature. Keller supplied PR-21Y piezoresistive pressure transmitters to a client specialising in developing and producing oil and water tempering machines.

Read more...

---

How to look after your pressure gauge
SA Gauge Editor's Choice Pressure Measurement & Control
Pressure and temperature gauges are very widely used on process plants. Specialising in the design and manufacture of pressure and temperature measuring instruments, SA Gauge believes that all process and ambient factors should be considered when selecting and installing pressure measuring devices. The company recommends that the following guidelines on selection and calibration be followed in order to prevent gauge failure.

Read more...

---

Process measurement solution for Copper Belt’s Kansanshi Mine
VEGA Controls SA Pressure Measurement & Control
Kansanshi Mine faced measurement challenges in its gland water tanks, slurry, and raw materials in the stockpiles and crusher bins. VEGA was able to offer a suitable solution to resolve these challenges.

Read more...

---

Pressure and level switches for food production
VEGA Controls SA Pressure Measurement & Control
New compact measuring instruments from VEGA prove that automation in food production can be very simple and economical without compromising on hygiene or safety.

Read more...

---

Safe pressure measurement in chlorine production
WIKA Instruments Pressure Measurement & Control
Pressure measurement plays a central role in chlorine production, which is a safety-critical process.

Read more...

---

Interference-resistant pressure transmitters
Instrotech Pressure Measurement & Control
Instrotech offers a pressure transmitter from Keller for temperature compensation and protection from electromagnetic fields (EMC) in the recently approved 21Y Series.

Read more...

---