1760
The Fluke 1760 correlates multiple events, and provides undisputable verification in a Class-A compliant package designed for advanced power quality analysis.
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Features
- Fully Class-A compliant:
- Conduct tests according to the stringent international IEC 61000-4-30 Class-A standard
- GPS time synchronization:
- Correlate data with events or datasets from other instruments with precision
- Flexible and fully configurable thresholds and scale factors:
- Allows user to pinpoint specific issues by defining the detailed criteria for detection and recording of disturbances.
- Uninterrupted power supply (40 minutes):
- Never miss important events - even record the beginning and end of interruptions and outages to help determine the cause
- 2 GB data memory:
- Enables detailed, simultaneous recording of numerous power parameters for long periods of time
- Comprehensive software included:
- Provides trend diagrams for root cause analysis, statistical summaries, report writing and real-time data monitoring in the online mode
- Plug and play:
- Allows quick setup with automatic sensor detection; sensors are instrument powered, eliminating the need for batteries
- Rugged field design:
- Insulated housing and a solid state design with no rotating components enable reliable testing under nearly any conditions
Uncertainties
- Uncertainty at reference conditions
- Uncertainty including the voltage sensors is in compliance with IEC 61000-4-30 Class-A. All voltage sensors are suitable for DC up to 5 kHz
- Aging
- Change of amplification due to ageing: < 0.04%/year
- Noise
- Noise voltage, input short-circuited: < 40 µV
- Common mode rejection
- > 100 dB at 50 Hz
- Aging
- < 0.05% / year
- Temperature drift
- Change of amplification through temperature: < 0.005%/K
- DC
- ±(0.2% rdg + 0.1% sensor)
- Reference conditions
- Power supply: 100 V to 250 V AC
- Reference conditions
- Warmed up instrument > 3h
- With Sensor 1000 V
- 0,1% at Udin = 480 V and 600 V P-N
- Intrinsic uncertainty for harmonics
- Class I as per EN 61000-4-7:2002
- Sensor 600 V
- 0,1% at Udin = 230 V P-N
- Reference conditions
- 23°C ±2 K < 60% rH; 74°F ±2 K < 60% rH
- Temperature drift
- 100 ppm / K
Signal Conditioning
- Resolution
- 16 ppm
- Uncertainty of internal clock
- < 1 s / day
- Uncertainty for frequency measurements
- < 20 ppm
- Measurement intervals
- Aggregation of the interval values as per IEC 61000-4-30 Class-A
- Flicker
- as per EN 61000-4-15:2003: 10 min (Pst), 2 h (Plt)
- Range for 50 Hz systems
- 50 Hz ±15% (42.5 Hz to 57.5 Hz)
- Harmonics
- as per IEC 61000-4-7:2002: 200 ms
- Range for 60 Hz systems
- 60 Hz ±15% (51 Hz to 69 Hz)
- Min-, Max-values
- Half cycle, e.g.: 10 ms rms values at 50Hz
- Sampling frequency for 50 Hz power frequency
- 10.24 kHz, The sampling rate is synchronized to mains frequency.
- Transients
- Sample rate 100 kHz to 10 MHz per channel
Class-A Compliance For The Most Demanding Power Quality Tests
- Detailed disturbance analysis
- – Perform high-speed transient analysis and uncover root cause of equipment malfunction for later mitigation and predictive maintenance. The fast transient option, with its 6000 V measurement range, allows capture of very short impulses such as capacitor switching and lightning strikes.
- Class-A quality-of-service compliance
- – Validate incoming power quality at the service entrance. Thanks to Class A compliance, the Fluke 1760 allows undisputable verification. The Fluke 1760 Class A compliance has been independently verified at a world leading power quality laboratory.
- Event correlation at multiple locations
- – Utilizing GPS time synchronization, users can quickly detect where a fault occurred first, either inside or outside the facility. The accuracy of this time-stamping enables users with multiple 1760s on their network to understand the propagation of events across the network.
- Galvanic separation and DC coupling
- – Allows complete measurements on dissimilar power systems. For example troubleshoot UPS systems by simultaneously recording the battery voltage and power output.
- Power quality and power load studies
- – Assess baseline power quality to validate compatibility with critical systems before installation and verify electrical system capacity before adding loads.
Measurement Inputs
- Basic safety
- 300 V CAT III
- Sensor safety
- up to 600 V CAT IV depending on sensor
- Input filter
- Each channel is equipped with a passive low-pass filter, an anti-aliasing filter and a 16-bit A/D converter. All channels are sampled synchronously with a common quartz-controlled clock pulse. The filters protect against voltage transients and limit the signal rise rate, reduce high frequency components and especially the noise voltage above half the sampling rate of the A/D converter by 80 dB, thus achieving very small measuring errors in an exceptionally large amplitude range. This is also valid under extreme operating conditions like transient voltages at the output of converters.
- Overload capacity (rms)
- 1000 V, continuously
- Number of inputs
- 8 galvanically isolated inputs for voltage and current measurements.
- Input capacitance
- 5 pF
- Voltage rise rate
- max. 15 kV / µs
- Input resistance
- 1 MΩ
- Nominal voltage (rms)
- 100 mV
- Range (peak value)
- 280 mV