| General Specifications |
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| Power quality measurement standards |
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| Conformance | IEC 61999-1-4 Class 1, IEC 61000-4-30 (Class A or Class S depending on measurement function), IEEE519, IEEE1159, IEEE1459 and EN50160 |
| Clock/calendar | Leap years, 24-hour clock |
| Real-time clock accuracy | Not more than ± 1 s/day |
| Internal memory capacity for data | At least 2 GB |
| Maximum recording period | At least 31 days |
| Measurement time control | Automatic |
| Maximum number of events | Limited only by the size of the internal memory |
| Power requirements | 100 to 240 V rms ± 10 %, 47-63 Hz, 40 W |
| Operating time during interruptions (internal UPS operation) | 5 minutes per interruption, 60 minutes total operating time without recharging |
| Dimensions | 215 mm x 310 mm x 35 mm (8.5 in x 12.2 in x 3.5 in) |
| Mass (weight) | 6.3 kg (14 lb) |
| Input Specifications |
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| Measurement types | One Phase Plus Neutral, One Phase IT No Neutral, One Phase Split Phase, Three Phase Wye, Three Phase Delta, Three Phase IT, Three Phase High Leg, Three Phase Open Leg, 2 Element Delta, 21/2 Element Wye |
| Input channels | Voltage: 4 channels, ac/dc |
| Current: 5 channels |
| Voltage channels | Input resistance: 2 MΩ Input capacitance: < 20 pF |
| Current input characteristics | 2 V rms = full scale, 1 MΩ Input Impedance for ferro CTs, low impedance for Flexi-CTs |
| Measuring method | Simultaneous digital sampling of voltage and current. Digital PLL synchronized sampling, internal frequency reference used during voltage drops. |
| Synchronization and sampling |
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| PLL-synchronization source | The PLL synchronizes to the A-N voltage for wye power types, and to the A-B voltage for delta power types. All listed power types can be characterized as either wye or delta. |
| PLL lock range | 42.5 to 69 Hz |
| Sampling frequency | Voltage and current: 256 samples/cycle Inter-harmonics per IEC 61000-4-7: 2560 points/10 cycles (50 Hz), 3072 points/12 cycles (60 Hz) Transient Voltage: 5 MHz |
| A/D resolution | Voltage and current: 24 bits Transient voltage: 14 bits |
| Voltage and current measurements |
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| Voltage measurement range | AC voltage: 1000 V rms ± 10 % over range DC voltage: ± 1000 V + 10 % over range |
| Voltage crest factor | 3 or less |
| Current measurement range | Depends on current probe used |
| Current crest factor | 4 or less |
| Voltage and current measurement accuracy |
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| RMS voltage |
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| Measurement type | True-rms calculated continuously: every cycle, every 1/2 cycle, and every 10 or 12 cycles at 50 or 60 Hz respectively, as required by IEC 61000-4-30. |
| Measurement uncertainty | AC: ± 0.2 % reading ± 0.1 % full scale, above 50 V rms DC: ± 0.5 % reading ± 0.2 % full scale, above 50 V dc |
| RMS current |
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| Measurement type | True rms calculated continuously: every cycle, every 1/2 cycle, and every 10 or 12 cycles at 50 or 60 Hz respectively, as required by standards |
| Measurement uncertainty | Ferromagnetic Clamps: ± (0.1 % full scale + 0.2 % reading + current sensor accuracy), valid for 5 % to 100 % of current sensor range |
| Flexible Current Probes: ± (0.1 % full scale + 0.5 % reading + current sensor accuracy), valid for 5 % to 100 % of current sensor range |
| See datasheet in resources for additional specifications |
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