General Specifications; Detailed Specifications - Fluke 287C Calibration Manual

General Specifications

Maximum voltage between any Terminal and Earth Ground: 1000 V
W Fuse Protection for mA or μA inputs ............. 0.44 A, 1000 V, IR 10 kA
W Fuse Protection for A input ............................ 11 A, 1000 V, IR 17 kA
Battery Type .......................................................... 6 AA Alkaline batteries, IEC LR6
Battery Life ............................................................ 100 hours minimum. 200 hours in Logging mode
Temperature
Operating ............................................................ -20 °C to 55 °C
Storage ............................................................... -40 °C to 60 °C
Relative Humidity .................................................. 0 % to 90 % (0 °C to 37 °C), 0 % to 65 % (37 °C to 45 °C), 0 % to 45 %
Altitude
Operating ............................................................ 3,000 m
Storage ............................................................... 10,000 m
Temperature Coefficient ....................................... 0.05 X (specified accuracy) /°C (<18 °C or >28 °C)
Safety
General ............................................................... IEC 61010-1, Pollution Degree 2
Measurements .................................................... IEC 61010-2-033, CAT IV 600 V/CAT III 1000 V
Electromagnetic Compatibility (EMC)
International ........................................................ IEC 61326-1: Portable Electromagnetic Environment; IEC 61326-2-2
Korea (KCC) ....................................................... Class A Equipment (Industrial Broadcasting & Communication

Detailed Specifications

Accuracy:
Accuracy is specified for a period of one year after calibration, at 18 °C to 28 °C (64 °F to 82 °F), with relative humidity to
90 %. Accuracy specifications are given as: ±( [ % of reading ] + [ number of least significant digits ] ). Accuracy
specification assumes ambient temperature stable at ±1 °C. For ambient temperature changes of ±5 °C, rated accuracy
applies after 2 hours. To obtain full accuracy in DC mV, Temperature, Ohms and Lo (50) Ohms, let the meter stabilize
20 minutes after using LoZ.
True-rms:
AC mV, AC V, AC μA, AC mA, and AC A specifications are ac-coupled, true rms, and are specified from 2 % of range to
100 % of range, except 10 A range is specified from 10 % to 100 % of range.
Crest Factor:
Accuracy is specified with AC crest factor ≤ 3.0 at full-scale, increasing linearly to 5.0 at half-scale, except the 1000 V
range, where it is 1.5 at full scale, increasing linearly to 3.0 at half-scale and 500 mV and 5000 μA, where it is ≤3.0 at
80 % of full scale, increasing linearly to 5.0 at half-scale. For non-sinusoidal waveforms add ±(0.3 % of range and 0.1 % of
reading).
(45 °C to 55 °C)
CISPR 11: Group 1, Class A
Group 1: Equipment has intentionally generated and/or uses
conductively-coupled radio frequency energy that is necessary for the
internal function of the equipment itself.
Class A: Equipment is suitable for use in all establishments other than
domestic and those directly connected to a low-voltage power supply
network that supplies buildings used for domestic purposes. There
may be potential difficulties in ensuring electromagnetic compatibility in
other environments due to conducted and radiated disturbances.
Caution: This equipment is not intended for use in residential
environments and may not provide adequate protection to radio
reception in such environments.
Emissions that exceed the levels required by CISPR 11 can occur
when the equipment is connected to a test object.
Equipment)
Class A: Equipment meets requirements for industrial electromagnetic
wave equipment and the seller or user should take notice of it. This
equipment is intended for use in business environments and not to be
used in homes.
True-rms Digital Multimeters
General Specifications
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