NanoVipPlus
Portable Power Analysers
The NANOVIP PLUS is a hand-held portable instrument which supplies all the information provided by the NANOVIP base model and NANOVIP PLUS model.
Voltage (V rms), Current (A rms), P.F. Cosj, Active power (W), Reactive power (var), Apparent power (VA), Frequency (Hz), Variations in V, I, W, of the memorized values (MEM function, frozen values of the mean measurements in correspondence with the max. A or W values or the minimum V value (PEAK function), DC measurements with optional Hall effect clamp meters.
As well as all the measurements envisaged by the basic version, the NANOVIP PLUS MEM offers many additional functions the total number of measurements is over 100:
- Active energy (kWh) and reactive energy (kvarh) meters in Standard or Cogeneration version (kWh and positive and negative kvarh meters)
- Total Harmonic Distortion Factor (THD) of V and I in relation to the fundamental and the total rms value
- V harmonics and the value of Cosj from the 1st to the 24th plus their DC component (i.e. j harmonic) in absolute value and as percentage of the fundamental
- Crest factor of V and I as absolute value and percentage
- DC Ripple of V and I as absolute value and percentage of the DC value
- RS232 serial communications port for connection to PC with choice of settings of: 38.4, 19.2, 9.6, 4.8, 2.4, 1.2, Kbaud
- 7/8 data bits
- 1/2 stop bit
- no/odd/even parity
- NANOVIP PLUS MEM is equipped with an internal 1 Megabyte flash memory (4032 records)
- LCD Display with Backlight. The backlight can be set to DISP ON, DISP OFF, DISP AUT (DISP ON for 10 seconds after a key has been pressed).
- Display of the active power relative to the displayed harmonic
- Setup Restore Command to restore factory settings of the Setup parameters.
- Serial line download on PC of the voltage and current waveforms and of the contains of the internal 1Megabyte memory
These functions are useful for a wide range of applications which include:
- Control and optimization of load electrical consumption levels
- Analysis of the harmonic distortion caused by non linear loads
- Prevention of the risk of resonance between banks of power factor correction capacitors and power supply transformers
- Verification of the DC ripple (residual ripple of direct current power supply units)
- Acquisition of data on Personal Computer for compilation of graphic and numerical reports on tests on electrical machines and systems
Technical Specification
General specificationsInputs
- Voltage: (L1,N) max 600 VAC (20 Hz - 600 Hz)
- Current: 1 Volt (20 Hz - 600 Hz.)
Voltage inputs overload
- Maximum permitted voltage 825VAC,1.17 KV peak
Current input overload
- 5 times Full scale value (a protective device trips when this limit is reached)
Number of scales
- 3 voltage ranges
- 3 current ranges
Automatic scale change
- Response time for scale change: 1 sec. The change to the next (higher) scale occurs at 105% of full scale value of the scale activated. The change to the next lower scale occurs at 20% of full scale value of the scale activated
Dimensions
- 80 x175 x 32,5 (without cover)
Weight of the instrument
- 4.00 gr including cover and batteries
Weight of the whole kit
- 1,6 Kg
Protection level
- IP40 (IEC 529)
Operating temperature range
- -10°C to 50°C
Relative humidity range
- 20% to 80% R.H.
Storage temperature range
- -20°C to 60°C
Insulation
- compliant to VDE 0110 group C for operating voltages 500 VAC
Insulation resistance
- 500 MOhm between short-circuited input terminals and the case
Insulation voltage between voltage inputs
- Test voltage= 2000V for 60 seconds
Insulation voltage between voltage inputs and case
- Test voltage= 3000V for 60 seconds
Reference standards
- IEC 348, VDE 0411 class 2, for low voltage circuits
- 600 VAC. IEC 1010 600V CAT III level of pollution 2
EMC reference standards
- EN 50081-1, EN50082-2, EN 55022
Battery type
- 1,5V AA alkaline-manganese IEC
- LR6, nominal capacity 2700mAh
Battery life
- 50-60 hours typical
- 40-50 hours when PEAK function is activated
Measurement method
- Fixed sampling and A/D conversion
Sampling frequency
- 1.25 KHz
Number of samples
- 250 (200 mS)
Measurement rate
- 1second in normal operation
- 0.4 second in PEAK mode
Zero self-regulation
- every minute
Measurement error in environment of 18°C to 25°C (after 10’ warming up)
- Expressed as ± % Rdg. (reading) + % F.S. (Full Scale) – see tables
Additional measurement error outside this temperature range
- ± 0,02% F.S. for each °C outside range
Sensitivity and accuracy of voltage measurements
- Direct input with max voltage = 750 Vrms at Full Scale
- Input voltage peak factor .1,6
- Input impedance .4 M
Sensitivity, Full Scale and voltage accuracy
| Rated Range | Sensitivity | Full Scale | S between 20% F.S. and 100% F.S. |
| 37 Vrms | 24 mV* | 37,0 V | 0,5%F.S.+ 0,5%Rdg. |
| 174 Vrms | 111 mV | 174 V | 0,3%F.S.+ 0,3% Rdg. |
| 750 Vrms | 480 mV | 750 V | 0,3%F.S.+ 0,3% Rdg. |
Sensitivity and accuracy of current measurement
- Direct input with max
- 1 Vrms at Full Scale
- Input current peak factor .1,6
Sensitivity, Full Scale and current accuracy
| Rated Range | Sensitivity | Full Scale ** | S between 20% F.S. and 100% F.S. |
| 50 mV | 32 µ V* | 50 mV | 0,5%F.S.+ 0,5%Rdg. |
| 232 mV | 140 µ V | 232 mV | 0,3%F.S.+ 0,3% Rdg. |
| 1 V | 640 µ V | 1 V | 0,3%F.S.+ 0,3% Rdg. |
(**) Full Scales for 50,0 - 232 - 1000 Amp. with 1000 A/1V clamp meters provided.
(Error = sum of instrument + clamp meter errors).
Accuracy does not take account of clamp meter error.
Voltage and current measurement precision as a function of frequency
- No error over errors specified in tables for signal frequencies in 20-90 Hz range
Measurement of other secondary values
- Error is expressed by the formula which defines the value, as a function of V and I
Measures
| TOTAL | |
| V | · |
| A | · |
| KW | · |
| KVA | · |
| KVAR | · |
| +KWH / -KWH | · |
| +KVARH / -KVARH | · |
| PF | · |
| THDF V | · |
| THDF I | · |
| CF V | · |
| CF I | · |
| HZ | · |
|
Harmonics order i=0,..,24 for 50Hz i=0,..,19 for 60Hz |
L1 | L2 | L3 |
| Vi | · | · | · |
| Ai | · | · | · |
| Cosfi1 | · | · | · |
