PCB-mounted current transducer
February 2005
Sensors & Transducers
LEM has introduced the HFIS 40-P and HFIS 70-P flat, PCB-mounted current transducers. The units operate from a single +5 V supply, measure only 22 x 20 x 8,7 mm and are designed for nominal current measurements of 40 and 70 ARMS.
The transducers will accept two types of primary conductor: either a round cable of 4,6 mm diameter or a bus bar measuring 7,2 x 2,6 mm. Both models have the same pin-out and are intended for a wide variety of low-voltage applications.
Offset (at no primary current) and gain are ratiometric. The initial offset is equal to Vcc/2 and the gain is defined as VCC/5 x 0,64 V for 40 A (for the HFIS 40-P) and Vcc/5 x 0,7 V for 70 A (for the HFIS 70-P). Both directly depend on power supply variations.
The rated single insulation voltage is 100 VRMS when fully using the round aperture and 150 VRMS when fully using the rectangular aperture (conditions: OVIII and PDII) according to EN 50178. This insulation can be improved by using an isolated cable or bus bar. The use of a unique LEM ASIC provides better offset and gain drifts, linearity and an extended operating temperature range of -40 to +125°C. The transducers are CE marked, conform to the EN 50178 standard and are recognised for industrial applications. LEM Components offers a five-year warranty for each transducer.
Further reading:
Market opportunity for sensors in humanoid robots
Sensors & Transducers
A new IDTechEx report forecasts the market for sensors in humanoid robots will exceed $6,59 billion by 2037, driven by perception sensors, force/torque sensors, encoders and inertial measurement units across a growing range of commercial robot platforms.
Read more...
The wireless route to safer, more efficient mining operations
Emerson Automation Solutions
Editor's Choice Sensors & Transducers
Modern wireless level measurement technologies are helping mining operations improve process control, increase safety and reduce installation costs. Emerson’s Rosemount 3408 wireless non-contacting radar level transmitter uses 80 GHz frequency-modulated continuous wave radar with HART communication to reach remote assets where cabling is impractical.
Read more...
Telco sensors for harsh environments
Sensors & Transducers
Telco sensors are designed to operate where moisture, particulate contamination and surface fouling would disable conventional sensors, with a range including an adjustable five-metre infrared proximity sensor for harsh industrial environments.
Read more...
The data-driven path to sustainable manufacturing
ifm - South Africa
Editor's Choice Sensors & Transducers
Smart automation is closing the gap between operational efficiency and environmental responsibility, and the data to do it is already inside the plant. With ifm’s sensing and digitalisation technologies, manufacturers can turn machine intelligence into measurable sustainability gains.
Read more...
Expanding visibility in mining operations
Emerson Automation Solutions
Editor's Choice Sensors & Transducers
Advances in wireless communications, condition monitoring and sensing technologies are helping mining operators extend measurement into previously under-monitored areas, improving equipment reliability, process performance and water stewardship.
Read more...
Fiber-optic amplifiers for precise object detection
ifm - South Africa
Sensors & Transducers
The OCF fibre-optic amplifier detects even the smallest or most transparent objects in confined spaces, making proven fibre-optic technology easier and more user-friendly than before.
Read more...
The next era of measurement and instrumentation
Sensors & Transducers
Smart sensors and non-contact radar are reshaping industrial measurement, feeding connected platforms that predict failures before they happen.
Read more...
Distance sensor for confined spaces
ifm - South Africa
Sensors & Transducers
The O6D100 from ifm has been designed as a powerful all-rounder for typical applications in object detection, distance measurement and positioning.
Read more...
Optimise sludge treatment and reduce operational costs
Endress+Hauser South Africa
Sensors & Transducers
Endress+Hauser’s inline measuring devices, the Proline Teqwave MW 300 and the Proline Teqwave MW 500, determine the total solids content of wastewater directly through microwave transmission.
Read more...
Inclination sensors for motion control
ifm - South Africa
Sensors & Transducers Motion Control & Drives
The JBC dynamic inclination sensor from ifm offers accurate angle measurement in the most demanding conditions, filtering out motion disturbances such as vibrations, shocks and vehicle dynamics to deliver reliable inclination values via IO-Link or programmable switch outputs.
Read more...
printer friendly version