Current transducers measure up to 250 A

16 July 2014 Test & Measurement

LEM has released three new HO series high-performance current transducers which extend nominal current measurement up to 250 A and come in PCB, panel or busbar mounting.

The transducers measure DC, AC and pulsed signals using the latest generation of LEM’s open-loop Hall effect ASIC. The new models exhibit offset and gain drifts which are up to twice as accurate across the temperature range as the previous generation and have a faster response time of 2,5 to 3,5 μs.

Operating from a single supply voltage of 3,3 V or 5 V, the HO series can measure up to 2,5 times the primary nominal current and includes an additional pin which provides over-current detection set at 2,93 times the nominal current IPN (peak value). Fault reporting is also provided in the event of memory corruption.

Extended clearance and creepage distances of more than 8 mm, together with a comparative tracking index (CTI) of 600, mean that, despite small packages of 22,95 cc to 33,15 cc, there is no compromise on the insulation level provided between the primary and measurement circuits.

The range of options offered by HO transducers makes them suitable for a wide selection of applications, including solar combiner boxes and solar power inverters, small smart meters, variable speed drives, uninterruptible and switch-mode power supplies, air conditioning, home appliances, static converters for DC motor drives, and robotics.

A wide operating temperature range of -40°C to +105°C also makes the HO series suitable for use in any industrial application. The transducers are CE marked and conform to the EN 50178 standard as well as being covered by a five-year warranty.

Further reading:

SIGLENT launches new 8 GHz DSO
Vepac Electronics Test & Measurement
SIGLENT has unveiled the enhanced SDS7000A/AP models, building on the success of its SDS7000A high-resolution digital oscilloscope series.

Read more...

---

Multi-functional high-res oscilloscopes
Coral-i Solutions Test & Measurement
RIGOL Technologies has launched two powerful additions to its oscilloscope portfolio that are tailored to meet the growing challenges of power electronics, automotive systems, and high-speed digital designs.

Read more...

---

TDK expands programmable PSU series
Accutronics Test & Measurement
With a 3U high chassis, the GAC and GAC-PRO provide extremely high-power density for a fully featured programmable AC power source.

Read more...

---

Analysing magnetic fields
Accutronics Test & Measurement
The engineers at Narda Safety Test Solutions have achieved a breakthrough in isotropic measurement and analysis of low-frequency magnetic fields in the form of their latest digital H-field probe.

Read more...

---

A new class of sampling scope
Comtest Test & Measurement
The PicoScope 9400A Series combines the huge analogue bandwidth of sampling oscilloscopes with the triggering architecture of real-time oscilloscopes.

Read more...

---

Single channel, programmable PSU
Electrocomp Express Test & Measurement
Rohde & Schwarz’ NGC101 is a NGC100-series power supply with a wide range of functions that make them ideal for use in development labs and industrial environments.

Read more...

---

Next-gen LineScan camera
Eagle Africa Technology Test & Measurement
New Imaging Technologies has launched the new LiSaSWIR, its next-generation SWIR LineScan camera and sensor.

Read more...

---

Ultra-portable spectrum analyser
Vepac Electronics Test & Measurement
The PXN-400Z from Harogic is a handheld spectrum analyser covering a frequency range of 9 kHz to 40 GHz with a 100 MHz analysis bandwidth.

Read more...

---

Why your next oscilloscope should be PC-based
Comtest Test & Measurement
For decades, traditional benchtop oscilloscopes have been a cornerstone of engineering, offering reliability, precision, and familiarity. However, as technology evolves, so do the tools we rely on.

Read more...

---

Versatile 3-in-1 instrument
Vepac Electronics Test & Measurement
The ARB Rider AWG-2000 is the cost-effective and powerful two or four channel arbitrary function generator and two or four channel arbitrary waveform generator with advanced sequencer functionality.

Read more...

---