Test & Measurement


Fluid sensors feature automatic calibration

15 April 2009 Test & Measurement

Providing design engineers with a simplified means of detecting the presence of fluid in transparent tubing, Optek Technology has expanded its family of fluid sensors to include automatic calibration circuitry and a preset trip level feature.

The liquid sensor consists of an LED and phototransistor packaged in an opaque plastic housing that enhances ambient light rejection. The housing features an opening designed to accommodate clear tubing with outer diameters of 1,6 mm, 3,2 mm or 4,8 mm. The presence of clear liquid causes the phototransistor to sink the maximum current, while the presence of dark liquid causes it to sink the minimum current. As bubbles pass through the tube, the signal will vary between the 'liquid present' and 'no liquid' states. If no tube is present, the phototransistor sinks current between the dark fluid and clear fluid states.

The OCB350 is designed to maintain the calibrated setting even if power is lost. Designers can initiate the calibration procedure at any time. The output phototransistor features a maximum collector-emitter voltage of 24 V or 30 V, with collector DC current of 50 mA and power dissipation to 100 mW. Operating temperature range is from -40°C to +85°C.

The sensors are ideally suited for non-contact fluid sensing applications including IV fluids, oils and other petroleum products, coloured fluids, toner and water.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

AI Experts provide product-specific intelligence
Measuretest Test & Measurement
VIAVI Solutions has announced AI Experts, the first addition to its NITRO AI portfolio of AI-driven capabilities with each Expert providing product-specific intelligence.

Read more...
Rugged spectrum analyser
Vepac Electronics Test & Measurement
The HAROGIC PXR Series is designed for maximum durability and performance in the most demanding environments.

Read more...
Setting a new benchmark for high-power DC load testing
Conical Technologies Test & Measurement Power Electronics / Power Management
The new ITECH IT8900G/L high-speed, high-power DC electronic load offers a powerful combination of speed, scalability, precision and high-power density.

Read more...
Locate underground cable faults faster with the Fluke AF2082 A-Frame
Comtest Editor's Choice Test & Measurement
Underground cable faults can lead to costly downtime, service disruptions, and extensive excavation if the fault location is uncertain. The AF2082 simplifies this process by guiding operators directly to the fault point.

Read more...
Precision power for electronics testing
Vepac Electronics Test & Measurement
The PeakTech 6168 switching power supply is a versatile and reliable solution designed for professional applications in laboratories, development environments, service centres, and training facilities.

Read more...
12-bit 1-wire temperature sensing
RS South Africa Test & Measurement
The DS18B20 digital thermometer from Analog Devices provides 9-bit to 12-bit Celsius temperature measurements in the range -55°C to 125°C.

Read more...
Ultra-fast wideband RF insight
Vepac Electronics Test & Measurement
The Harogix PXE-200 is a high-performance real-time spectrum analyser designed for demanding RF environments up to 20 GHz.

Read more...
Field calibration made easy
Instrotech Test & Measurement
Built around modern component technology, an intuitive interface, and a rugged IP54-rated housing, Instrotech’s Calog series is engineered for the demands of real industrial field calibration work.

Read more...
Rugged two-pole voltage tester
Vepac Electronics Test & Measurement
A key advantage of the PeakTech 1094 is its battery-free operation, ensuring the tester is always ready for use whenever required by professional electricians or maintenance personnel.

Read more...
Rapid IoT prototyping simplified
Future Electronics Test & Measurement
The STEVAL-MKBOXPRO from STMicroelectronics is a compact, ready-to-use wireless development kit designed to accelerate the creation of intelligent IoT and wearable applications.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved