Measurements
Current sensors NanoFlex™
Rogowski sensors for NanoVIP® power quality analyzers
Based on the principle of the Rogowski coils, the NanoFlex™ current sensors allow the measurement of a wide range of currents (from 6A up to 3000A) ensuring, thanks to a particularly thin cord (only 5.5mm diameter), a high flexibility.
Flexible, precise, strong with a wide range of measurement
- Can be used on NanoVIP® family analyzers without the need for external power supply or amplification
- Equipped with automatic recognition system if used on the latest NanoVIP® series analyzers: TWOTM, CUBETM and QUADRATM
- Cord only 5.5mm in diameter.
- Flexible and light
- Designed for the measurement of alternating currents in a wide range of values: from 6A to 3000A
- Thanks to its mechanical characteristics it can easily be wound in two turns to bring its measuring range from 3A to 1500A with an increase in precision itself
- Excellent response to rapid changes in current, not being subject to induction of Fourier currents.
- Very high linearity due to the absence of magnetic saturation even in the presence of very high currents, such as in the case of electricity transmission, electric welding or applications involving high power pulses
- The particular closing system allows safe use even when wearing safety gloves
Characteristics
NanoFlex™ is a current sensor with an active part (Rogowski coil) characterized by a high flexibility that allows it to be installed in the most demanding positions. The particular closing system allows easy use even with safety gloves. Not subject to magnetic saturation phenomena, they offer a very high linearity, a low phase shift and a wide measuring range.
NanoFlex™ can be used on all the analyzers of the latest generation of NanoVIP® family (production from 2015 onwards with automatic recognition of the current clamps) except for the DS model that can only mount the DC clamp.
For the older NanoVIP® analyzers (without clamps recognition), suitable adapters are available to allow their use.
[
Brochure current sensors NanoFlex™ 500 kb 195 downloads
Flexible current sensors (from 6A to 3000A) for NanoVIP® Power Quality analyzer...| Measured range | 6A up to 3000A |
| Operating voltage | 600V rms or DC (CAT IV) 1000V rms or DC (CAT III) |
| Voltage at sensor terminals | 39,1µV/A at 50Hz on 10kΩ load |
| Accuracy | ≤ 1 % + 0.3 A (only sensor) |
| Linearity | <0.3% |
| Phase shift | -90° ± 0,5° at 50 Hz |
| Interchangeability error | ≤ 0.5% (maximum error between 2 sensor for the same measurement point) |
| Influence of temperature | 0.05%/10 °k from -20 °C to +60 °C |
| Influence of humidity | 0.1% from 10% to 90% RH |
| Influence of conductor position with non sensor deformation: | ≤ 1.5% |
| Influence of adjacent conductor placed 1cm from sensor: | ≤ 0.7% of the adjacent current at 50Hz |
| Influence of sensor deformation (flattened/oblong shape): | ≤ 0.5% |
| Common mode rejection | ≥ 100dB for a voltage of 600V / 50Hz applied between the sensor enclosure and the secondary |
| (1) Conditions of reference | 23 °C ± 5 °K, 20% to 75% RH Continuous external DC magnetic field (earth field) < 40 A/m Absence of external AC magnetic field External electrical field < 1 V/m Position of conductor measured: centred in the measurement coil Shape of measurement coil: quasi-circular Measurement instrument input impedance (oscilloscope) ≥ 1 MΩ Frequency and form of signal measured: 40 to 400 Hz sinusoidal |
| Electrical safety | Class II equipment with double or reinforced insulation between the primary and the secondary (winding connected to the connection cable) as per EN 61010-1 & EN 61010-2-032: – 1000V CAT III, pollution degree 2 – 600V ACT III, pollution degree 2 – Type-B sensor |
| Dimensions | Ø of sensor: 5.5mm approx. Sensor lenght: 400mm Output cable length: 2m |
| Weight | 60g |
| Operating temperature | -20 °C to +60 °C |
| Storage temperature | -40 °C to +80 °C |
| Max temperature of clamped conductor (measured) | ≤ 90 °C |
| Operating altitude | 0 to 2000 m (for 600V CAT III) |
| Storage altitude | ≤ 12000m |
| Casing protection rating (leakproofing) | IP50 according to EN 60529/A1 Ed.06/2000 |
| Self-extinguishing capability | UL94 V0 |
| 4AAZARP | NANOFLEX CLAMP 3000A WITH RECOGNITION |
