The ADI40 extends the versatility of the N4L Precision Power Analyzers (PPA3500, PPA4500 and PPA5500), collecting a multitude of DC measurements and streaming the data digitally to the Power Analyzer. Featuring 4x direct thermocouple inputs (type J or type k), 16x analogue DC inputs and 20x analogue DC outputs. Analogue outputs can be mapped to any PPA measured parameter, as well as the 16x analogue inputs. More detailed information on the ADI40 can be found here

N4L LEM-6 Interface serves as a high accuracy, highly stable interfacing unit allowing simple “plug and play” connection of any N4L PPA to the LEM IT and ITN current transducers.

The LEM-6 supplies the LEM transducer with a highly stable isolated supply voltage, each channel is isolated from the next providing excellent cross channel coupling immunity. There are 4x current shunts per channel, ranging from 1Ω ~ 10Ω, this ensures the transducer can be utilized accurately throughout its dynamic range without the introduction of noise into the measurement.

If the LEM-6 is purchased with an N4L power analyzer and LEM transducers, the LEM-6 Interface can be “system calibrated” within N4L’s ISO17025 UKAS laboratory. This provides the engineer with a single uncertainty figure and improved accuracy performance, the LEM-6 is 19in rack mountable and available in 1~6 phase configurations.

N4L LEM-1 Interface module serves as a high accuracy, highly stable interfacing unit allowing simple “plug and play” connection of any N4L PPA to the LEM IT and ITN current transducers.

Due to the “one interface box, one transducer philosophy” The LEM-1 supplies the LEM transducer with a highly stable isolated supply voltage, providing excellent cross channel coupling immunity.

If one or more of the LEM-1 interface module is purchased with an N4L power analyzer and LEM transducers, the LEM-1 Interface can be “system calibrated” within N4L’s ISO17025 UKAS laboratory. This provides the engineer with a single uncertainty figure and improved accuracy performance.

The BDR01 series shunt provides an accurate current sensing solution for current transducers/transformers outputting a current signal, the shunts feature BNC input and Output connectors.

The BDR01 is ideal for use in conjunction with current output transformers or zero flux based current sensing transducers such as the LEM IT and ITN series. The BDR01 extends the low current sensitivity significantly due to the higher shunt impedance, this is essential for current transducers with high “turns ratios”.

While the BDR series was primarily designed for use with the PPA series power analyzers from N4L that provide exceptional wideband accuracy, dynamic range and common mode rejection, they can also be used as a precise current sensing device for other equipment.

N4L Resistive Current Shunts provide the engineer with a wide range of current measurement options. The range spans from the 1Arms rated HF01A to the 500Arms HF500, the HF01A provides accurate current measurement down to 500uA RMS.

HF100_200 Fixing Bolt Guide
HF500 Fixing Bolt Guide V2
HF500 – Thermal Characteristic

N4L High Frequency Rogowski Current Transducers provide current measurement from 1A up to upwards of 30,000A depending upon the model selected. The two standard models in our range provide 1A → 5,000A(WR5000) and 2A → 10,000A(WR10000) dynamic measurement ranges.

Other models available upon request

N4L are pleased to offer the LEM range of Zero flux current measurement transducers, these current sensors based upon the Zero Flux measurement technique provide high accuracy current measurement up to 1,000Apk

These devices operate as current output transducers, voltage output transducers are available upon request

Our AC+DC Current Clamp range provide current measurement up to 5,000A (P50-3C) with an upper bandwidth of 5kHz (SC3C), these current clamps offer a convenient method of measurement for applications where the DC component of a signal is of particular interest. For example, these clamps are ideally suited to measurement of the DC bus in an inverter drive.

Other models available upon request

Our AC Current Clamp range provide current measurement up to 3,000A (P32-UE) with an upper bandwidth of 15kHz (SMUB), these current clamps offer an accurate measurement of an AC signal over a wide bandwidth. Typical applications include PWM Invert Driver output power measurement, transformer loss testing and a range of other AC applications. The wideband response of these current clamps is very flat well beyond the stated frequency range, these AC current clamps offer an ideal solution where cost and convenience must be accompanied with sufficient accuracy.

Other models available upon request

The 3 Phase Voltage Interface is designed for use with PPA series power analyzers in applications where high speed switching events may be outside the instrument frequency range.

By suppressing frequency components outside the measurement band, this accessory provides a simple solution to instability that can be caused by high dV/dt voltage switching components..

Fitted with touchproof 4mm connectors, the interface provides a convenient way to terminate voltage lines from a device under test then connect to a PPA analyzer in either 3 Phase 2 Wattmeter (Delta) or 2 Phase 3 Wattmeter (Star) configuration, with internal filters to limit unwanted high frequency components.

Although N4Lpower analyzers feature 3000Vpk (PPA4500 and PPA5500) and 2500Vpk (PPA500 and PPA1500) voltage inputs, a particularly useful feature of all N4L power analyzers is the 3Vpk BNC inputs situated on both the voltage and current channels. This results in the ability to measure 6 x high voltage signals (with attenuators on external inputs) on a 3 Phase instrument, in this case the three current channel “External Inputs” could be used to measure a voltage via an input attenuator such as the TT-HV250.

Other models available upon request

The TTV-HVP-15HF High Voltage Probes allows any of our power analysers to be connected to signals up to 15kV, this is particularly useful for voltage measurement of power line applications, the high voltage probes is connected to the power analyzer via the Vext BNC connection on the instrument, the probe is then enabled in the RANGE menu of the power analyser.

Other models available upon request

The ULCP ultra low capacitance probe is intended for voltage measurement of devices which are particularly sensitive to capacitive loading. This is particularly useful when measuring start up characteristics of low power lighting ballasts, the ULCP Ultra Low Capacitance Probe utilises a differential input design that provides a capacitance to ground of 1pF.

Other models available upon request

The HVDP high voltage differential probe is a reliable and accurate voltage sensing device designed to maintain a precise attenuation value over a wide frequency range. The active circuitry provides a low impedance output which does not need to be trimmed to adjust to the characteristics of the measurement input.

Supplied with 12V 15W International power supply

1m Unterminated HV input leads

2m BNC-BNC cable

All N4L Power Analyzers are supplied with the necessary voltage and current connection leads in order to make measurements “out of the box”. It may be the case that the supplied lead set has been damaged/gone missing, in these situations it is possible to order a replacement lead set.

Other lead lengths available upon request

The 10Arms Single Phase Universal breakout box is a convenient solution to single phase power measurement of domestic appliances. The breakout box features a universal CE compliant shuttered outlet for connection of a range of sockets. The 4mm safety connectors offer seamless connection to any of the N4L power analyzer range.

At only 2U high, the PPA500 and PPA1500 power analyzers offer exceptional accuracy at this form factor. The PPA500/PPA1500 rack mount kit provides the ability to perform 6 phase 0.1% accurate power measurement whilst only occupying a height of 2U in any rack. This level of accuracy is not available from any other manufacturer at this form factor*.

*according to N4L market research July 2014

The ATT10, ATT20 and ATT1000 are BNC to BNC voltage attenuators designed for the PPA Vext and Aext inputs. They provide high accuracy wide bandwidth gain, typical applications are in situations when the output of a voltage attenuator (such as the TT-HV250) is above the 3Vpk range of the voltage channel external input.

The PPA4500/5500 feature torque and speed inputs fitted as standard, both inputs are ground referenced and in certain circumstances where grounding is an issue an isolated torque and speed input is required.

The Phase Controlled Inrush Switch provides the engineer with the ability to “program” the phase angle of the input power waveform at which power is applied to any DUT. The PCIS allows the user to pre program 0º, 45º, 90º, 135º, 180º, 225º, 270º and 315º. This function is particularly useful when testing the inrush current of a device which is either inductive or capacitive, allowing “worst case” phase angles to be applied to the device under test.

The GPIB515 Accessory makes a GPIB link available to the PPA500 and PPA1500 Instrument range, this is achieved through a serial link to the PPA that handles all necessary status lines and registers for IEEE488 Communication.

The CAN-port unit is designed as an interface between a CAN network and a Newtons4th PPA series Power Analyzer. The unit receives commands from the CAN network or via serial (RS232) and then processes these commands and controls and instructs the PPA; responses from the PPA are reformatted and split into multiple messages and placed onto the CAN network.

The N4L PPA500/PPA1500 Aluminium carry cases offer ruggedness in a lightweight package, providing the engineer with the ability to transport the Power Analyzer via freight or an aircraft hold. The Aluminium design offers protection whilst the CNC machined foam inserts secure the instrument in place.