Input |
Measurement line |
Single-phase two-wire (1P2W), single-phase three-wire (1P3W), threephase three-wire (3P3W2M, 3P3W3M), three-phase four-wire (3P4W) |
1P2W |
1P2W |
1P2W |
1P2W |
1P3W |
1P2W |
1P2W |
3P3W2M |
1P2W |
1P2W |
1P3W |
1P3W |
3P3W2M |
1P3W |
3P3W2M |
3P3W2M |
3P3W3M |
1P2W |
3P4W |
1P2W |
|
Number of input channels |
Voltage: 4 channels U1 to U4
Current: 4 channels I1 to I4 |
Input terminals |
Voltage: Plug-in terminal (safety terminal)
Current: Dedicated connector |
Input method |
Voltage: Isolated input, resistance voltage dividing method
Current: Isolated input using current sensor (voltage output) |
Measurement range
Voltage range
Current range () indicates the sensor rating used
Power range |
(Selectable for each connection, auto range available)
15.000V / 30.000V / 60.000V / 150.00V / 300.00V / 600.00V / 1500.0V
*400.00mA / *800.00mA / 2.0000A / 4.0000A / 8.0000A / 20.000A (20 A rating)
4.0000A / 8.0000A /20.000A / 40.000A / 80.000A / 200.00A (200 A rating)
1.0000A / 2.0000A / 5.0000A / 10.000A / 20.000A / 50.000A (50 A rating)
10.000A / 20.000A / 50.000A / 100.00A / 200.00A / 500.00A (500 A rating)
Depends on the combination of voltage and current (6.0000 W to 2.2500 MW) |
Crest factor |
3 (voltage/current), 1.33 for 1500 V |
Input method (50/60Hz) |
Voltage input part: 2 MO ±40 kO (Differential input and isolated input)
Current sensor input part: 1 MΩ ±50 kΩ |
Maximum input voltage |
Voltage input part: 1500 V ±2000 V peak
Current sensor input part: 5 V ±10 V peak |
Maximum rated voltage to ground |
Voltage input terminal 1000 V (50/60 Hz)
Measurement category III 600 V (Expected transient overvoltage 6000 V)
Measurement category II 1000 V (Expected transient overvoltage 6000 V) |
Measurement method |
Voltage and current simultaneous digital sampling and zero cross synchronization calculation method |
Sampling |
500kHz / 16bit |
Frequency band |
DC,0.5Hz to 150kHz |
Synchronization frequency range |
0.5Hz to 5kHz |
Synchronization source |
U1 to U4 / I1 to I4 / Ext (with motor analysis option, CH B: when pulse is set) / DC (50 ms, 100 ms fixed) |
Data update rate |
50ms |
LPF |
OFF / 500 Hz / 5 kHz / 100 kHz (Selectable for each connection)
When 500 Hz: Accuracy +0.1%f.s. specified at 60 Hz or less
When 5 kHz: Accuracy specified at 500 Hz or less
When 100 kHz: Accuracy specified at 20 kHz or less (1%rdg. is added at 10k Hz to 20 kHz) |
Polarity determination |
Voltage/current zero cross timing comparison method |
Polarity determination Measurement parameters |
Voltage (U), current (I), active power (P), apparent power (S), reactive power (Q), power factor ( ?), phase angle (f), frequency (f), efficiency (?), loss (Loss), voltage ripple factor (Ufr), current ripple factor (Ifr), current integration (Ih), power integration (WP), voltage peak (Upk), current peak (Ipk) |
Accurate Voltage, currency, and active power measurements |
±0.1%rdg.±0.1%f.s. |
±0.1%rdg.±0.1%f.s. |
±0.1%rdg.±0.1%f.s. |
±0.1%rdg.±0.2%f.s. |
±0.1%rdg.±0.2%f.s. |
±0.1%rdg.±0.2%f.s. |
±0.1%rdg.±0.1%f.s. |
±0.1%rdg.±0.1%f.s. |
±0.1%rdg.±0.1%f.s. |
±0.05%rdg.±0.05%f.s. |
±0.05%rdg.±0.05%f.s. |
±0.05%rdg.±0.05%f.s. |
±0.1%rdg.±0.1%f.s. |
±0.1%rdg.±0.1%f.s. |
±0.1%rdg.±0.1%f.s. |
±0.2%rdg.±0.1%f.s. |
±0.2%rdg.±0.1%f.s. |
±0.2%rdg.±0.1%f.s. |
±0.3%rdg.±0.2%f.s. |
±0.3%rdg.±0.2%f.s. |
±0.4%rdg.±0.3%f.s. |
±1.0%rdg.±0.3%f.s. |
±1.0%rdg.±0.3%f.s. |
±1.5%rdg.±0.5%f.s. |
±20%f.s. |
±20%f.s. |
±20%f.s. |
|
Accuracy guarantee period |
6 months (One-year accuracy is the above accuracy x 1.5) |
Temperature coefficient |
±0.01%.f.s / °C (When DC: Add ±0.01%f.s./°C) |
Effect of common mode voltage |
±0.01%f.s. or less (When applying 1000 V (50/60 Hz) between the voltage input terminal and the case) |
Effect of external magnetic field |
±1.0%f.s. or less (in a magnetic field at 400 A/m, DC, and 50/60 Hz) |
Effect of power factor |
±0.15%f.s. or less (When power factor = 0.0 at 45 Hz to 66 Hz), add ±0.45%f.s. when LPF is 500 Hz |
Effective measurement range |
Voltage, current, and power: 1% to 110% of range |
Display range |
Voltage, current, and power: Range’s zero suppress range setting to ±120% |
Zero suppress range |
Selects from OFF, 0.1%f.s., and 0.5%f.s. * When OFF is selected, a numerical value may be displayed even if zero is input |
Zero adjustment |
Voltage: ±10%f.s.
Current: ±10%f.s. zero correction is performed for an input offset less than ±4 mV |
Waveform peak measurement |
Range: Within ±300% of respective voltage and current range Accuracy: Voltage and current respective display accuracy ±2%f.s. |
Frequency measurement |
Number of measurement channels |
4 channels (f1, f2, f3, f4) |
Measurement source |
Selects from U / I for each input channel |
Measurement method |
Reciprocal method + zero cross sampling value correction |
Measurement range |
Within synchronization frequency range between 0.5 Hz and 5 kHz |
Data update rate |
50 ms (Depends on the frequency when 45 Hz or less ) |
Accuracy |
±0.05%rdg. ±1dgt. |
Display range |
0.5000Hz to 9.9999Hz / 9.900Hz to 99.999Hz / 99.00Hz to 999.99Hz / 0.9900kHz to 5.0000kHz |
Display |
Display character |
English / Japanese / Chinese (simplified characters) |
Display |
9-inch TFT color LCD display (800 × 480 pixels) |
LCD backlight |
ON / Auto OFF (1min / 5min / 10min / 30mim / 60min) |
Display resolution |
99999 counts (Integrated value: 999999 counts) |
Display refresh rate |
200 ms (Independent from internal data update rate, and waveform and FFT depend on the screen) |
Display screen |
Measurement, Setting, File Manipulation screens |
General specifications |
Operating location |
Indoors, altitude up to 2000 m, contamination class 2 |
Storage temperature and humidity ranges |
-10°C to 50°C, 80%RH or less (No dew condensation) |
Operating temperature and humidity ranges |
0°C to 40°C, 80%RH or less (No dew condensation) |
Withstand voltage |
For 15 seconds at 50/60 Hz AC5.312 kVrms: Between the voltage input terminal and the unit case AC3.32 kVrms: Between the voltage input terminal and the current input terminal / interface AC370 Vrms: Between the 9791 and 9793 input terminals (CH A, CH B, CH Z) and the unit case Between CH A and CH B / CH Z |
Applicable standard |
Safety: EN61010-1
EMC: EN61326-1 Class A, EN61000-3-2, EN61000-3-3 |
Rated power supply voltage |
100 to 240 VAC (expected transient overvoltage of 2500 V), 50/60 Hz |
Maximum rated power |
140VA |
Dimensions |
340 (W) × 170 (H) ×157 (D) mm (excluding protrusions) |
Weight |
4.8 kg (including the 9793) |
Backup battery life |
About 10 years (a reference value of a lithium ion battery used at 23°C to back up the clock, setting conditions, and integrated values) |
Product warranty period |
1 year |