Fluke 1760TR Basic

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 || With Sensor 1000 V: 0,1% at Udin = 480 V and 600 V P-N || Sensor 600 V: 0,1% at Udin = 230 V P-N

Intrinsic uncertainty for harmonics

Class I as per EN 61000-4-7:2002

Reference conditions

23°C ±2 K < 60% rH; 74°F ±2 K < 60% rH || Warmed up instrument > 3h || Power supply: 100 V to 250 VAC

Temperature drift

100 ppm / K || Change of amplification through temperature: < 0.005% / K

Aging

< 0.05% / year || Change of amplification due to ageing: < 0.04% / year

Common mode rejection

> 100 dB at 50 Hz

Noise

Noise voltage, input short-circuited: < 40 µV

DC

±(0.2% rdg + 0.1% sensor)

General Data

Intrinsic uncertainty

refers to reference conditions and is guaranteed for two years

Quality system

developed, manufactured as per ISO 9001: 2000

Environment conditions

Operating temp. range: 0°C to +50°C; 32°F to +122°F || Working temp. range: -20°C to +50°C; -4°F to +122°F || Max. operating altitude: 2000 m: max. 600 V CAT IV1, power supply: 300 V CAT III 5000 m: max 600 V CAT III1, power supply: 300 V CAT II || Max. operating altitude: 1. Depending on sensor

Environment conditions Storage temp. range

20°C to +60°C; -4°F to 140°F

Environment conditions Reference temperature

23°C ± 2 K; 74°F ± 2 K

Environment conditions Climatic class

B2 (IEC 654-1), -20°C to +50°C; -4°F to +122°F

Reference conditions Environment temp.

23°C ± 2 K; 74°F ± 2 K

Reference conditions Power supply

230 V ± 10%

Reference conditions Power frequency

50 Hz / 60 Hz

Reference conditions Signal

declared input voltage Udin

Reference conditions

Averaging: 10 minute intervals

Housing

Insulated, robust plastics housing

EMC Emission

Class-A as per IEC/EN 61326-1

EMC

Immunity: IEC/EN 61326-1

Power supply Range

AC: 83 V to 264 V, 45 to 65 Hz || DC: 100 V to 375 V

Power supply Safety

IEC/EN 61010-1 2nd edition || 300 V CAT III

Power supply Power consumption

NIMH, 7.2 V, 2.7 Ah

Power supply Battery pack

In case of a power supply failure an internal battery maintains the supply for up to 40 minutes. Afterwards, or in case of discharged accumulators 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.

Display

Fluke 1760 features LED indicators for the status of the 8 channels, phase sequence, power supply (mains or accumulator), memory usage, time synchronization, and data transfer.

Display Power LED

Permanent light: normal power supply from mains.OFF: supply via internal accumulator in case of a power failure.

Display Channel LEDs

3-color LEDs per channel for:Overload conditionUnder load condition

Data memory

2 GB Flash memory depending on model

Memory model

Linear

Interfaces

Ethernet (100 MB/s), compatible to Windows® 98/ME/NT/2000/XP RS 232, external modem via RS 232

Baud rate for RS 232

9600 Baud to 115 kBaud

Dimensions (H x W x D)

325 x 300 x 65 mm (2.8 x 11.8 x 2.6 in)

Weight

appr. 4.9 kg; 10.8 lbs (without accessories)

Warranty

2 years

Calibration interval

1 year recommended for Class-A, otherwise 2 years

Signal Conditioning

Range for 50 Hz systems

50 Hz ±15% (42.5 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

10.24 kHz, The sampling rate is synchronized to mains frequency.

Uncertainty for frequency measurements

< 20 ppm

Uncertainty of internal clock

< 1 s/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

Measurement intervals Transients

Sample rate 100 kHz to 10 MHz per channel

Harmonics

as per IEC 61000-4-7:2002: 200 ms

Flicker

as per EN 61000-4-15:2003: 10 min (Pst), 2 h (Plt)

Overview of Measurement Functions

Statistical evaluation

Power quality statistics according to EN50160 and DISDIP tables like ITIC, CEBEMA, ANSI

Event list

Dips, swells and interruptions are detected and stored in the event list. Also any trigger which fires generates an event added to this list. || The Event list shows the exact time when the event occurred as well as the duration and magnitude. Sorting by several attributes of these events is possible to select one for further root cause analysis. || RMS values, transients and fast transients can be stored if a trigger fires

Continuous recording

Fluke 1760 records rms values together with corresponding minimum and maximum values for:• Voltage• Current• Power P, Q, S• Power Factor• kWh• Flicker• Unbalance• Frequency• Harmonics/InterharmonicsContinuously with the following time aggregations:Day10 minFree Interval, e.g.: 15 min, 2 h

Triggered recordings rms

Aggregation time is adjustable between 10 ms (1/2 cycle), 20 ms (1 cycle), 200 ms (10/12 cycles) or 3 sec (150/180 cycles). || Calculating rms values, Harmonics and Interharmonics is performed synchronous to the power frequency. || Basic aggregation for harmonics and interharmonics is 200ms

Triggered recordings Oscilloscope:

Sample rate is 10.24 kHz for all 8 channels

Triggered recordings

Mains signalling: Phases and N-conductor, Voltage and current

Online mode

Variable refresh rate. This feature allows verification of instrument set up and delivers a quick overview of oscilloscope, transients and events.

Measurement Inputs

Number of inputs

8 galvanically isolated inputs for voltage and current measurements.

Sensor safety

up to 600 V CAT IV depending on sensor

Basic safety

300 V CAT III

Nominal voltage (rms)

100 mV

Range (peak value)

280 mV

Overload capacity (rms)

1000 V, continuously

Voltage rise rate

max. 15 kV/µs

Input resistance

1 MΩ

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 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.

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