Atec Fluke-1760 - Manual (Page 7)

7 Fluke Corporation Fluke 1760 Three-Phase Power Quality Recorder Topas
Power supply
Range AC: 83 V to 64 V, 45 to 65 Hz
Safety DC: 100 V to 375 V
IEC/EN 61010-1 nd edition
300 V CAT III
Power consumption max. 54 VA
Battery pack NIMH, 7. V, .7 Ah
In case of a power supply failure an internal battery maintains the supply for up to 40
minutes. Afterwards, or in case of discharged battery the Fluke 1760 is turned off and
continues the measurements with the latest settings as soon as the supply voltage
returns. The battery can be replaced by the user.
Signal conditioning
Range for 50 Hz systems 50 Hz ± 15 % (4.5 Hz to 57.5 Hz)
Range for 60 Hz systems 60 Hz ± 15 % (51 Hz to 69 Hz)
Resolution 16 ppm
Sampling frequency for 50 Hz power frequency 10.4 kHz, The sampling rate is synchronized to mains frequency.
Uncertainty for frequency measurements < 0 ppm
Uncertainty of internal clock < 1s/day
Measurement intervals Aggregation of the interval values as per IEC 61000-4-30 Class-A
Min-, Max-values Half cycle, e.g.: 10 ms rms values at 50 Hz
Transients Sample rate 100 kHz to 10 MHz per channel
Harmonics as per IEC 61000-4-7:00: 00 ms
Flicker as per EN 61000-4-15:003: 10 min (Pst), h (Plt)
Measurement inputs
Number of inputs 8 galvanically isolated inputs for voltage and current measurements
Sensor category rating up to 600 V CAT IV depending on sensor
Basic category rating 300 V CAT III
Nominal voltage (rms) 100 mV
Range (peak value) 80 mV
Overload capacity (rms) 1000 V, continuously
Voltage rise rate max. 15 kV/µs
Input resistance 1 M Ω
Input capacitance 5 pF
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 achieve extremely high accuracy throughout a wide frequency range. 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. This is also valid under extreme operating conditions such
as transient voltages at the output of converters.