G4420

Technical specifications

General:

• Voltage sampling frequency, maximum number of samples per cycle: 512
• Voltage harmonics (individual, even, odd, total) up to –: 255th
• Type of analogue-to-digital converter: 16
• Internal memory: 4 GB
• Transient detection, microseconds (50 Hz/60 Hz): 39/32.5 μs
• Ethernet ports: 2
• Power over Ethernet (PoE output): 1
• Voltage maintenance during a power cut (up to): 25 sec.
• Applicable measurement standards: EN50160, IEEE1159, IEEE519, IEC61000-4-15, IEC61000-4-7, IEC 61000-4-30 Class A, IEC 62053-22/23 Class 0.2
• Applicable EMC standards: EN55011 Group 1 Class A, EN61000-6-2, IEC 60255, EN 60439-1 (clauses 7.9.1, 7.9.3, 7.9.4, 7.10.3, 7.10.4), FCC Part 15 Subpart B Class A, IEC 61000-3-3

Voltage channels:

• Channels: 3-phase + neutral
• Nominal full scale: 1,000 V
• Maximum peak value: 8 kV
• Input impedance: 3 MΩ
• Uncertainty: 0.1% of the nominal value

Power channels:

• Channels: 3-phase + neutral
• Nominal full scale: 5 A
• Maximum peak value: 50 A
• Load: 0.0001 VA at 5 A
• Phase: ±0.42° at 3 A, ±0.17° at 5 A
• Uncertainty: 0.1% of the nominal value

Frequency measurement:

• Fundamental frequency: 42.5 Hz to 69 Hz
• Frequency resolution: 10 mHz
• Frequency accuracy: ±10 mHz

Physical:

• Dimensions: 175 mm x 232 mm x 138 mm
• Weight: 1.7 kg

Power Supply:

• Operating range: 100–260 VAC: 50/60 Hz 100–300 VDC
• DC auxiliary power supply: 48 VDC
• Auxiliary power supply – PoE input: PoE input in accordance with 802.3af

Time synchronisation:

• Real-time clock: 20 ppm
• GPS: 100–200 μs
• IRIG B: 100–200 μs
• SNTP server: 50–100 μs
• DCF-77: ±15 ms

Environmental conditions:

• Operating temperature: -20 °C to 70 °C (-4 °F to 158 °F)
• Storage temperature: -40 °C to 85 °C (-40 °F to 185 °F)