Fluke 287C User Manual

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Calibration Manual
6
AC Floor:
When the input leads are shorted together in the ac functions, the Meter may display a residual reading up to 200 counts.
A 200 count residual reading will cause only a 20 count change for readings at 2 % of range. Using REL to offset this
reading may produce a much larger constant error in later measurements.
AC+DC:
AC+DC is defined as
22
dcac +
AC Voltage Specifications
Function Range Resolution
Accuracy
20 to 45 Hz 45 to 65 Hz
65 Hz to
10 kHz
10 to 20 kHz 20 to 100 kHz
AC mV
[5]
50 mV
[1]
0.001 mV 1.5 % + 60 0.3 % + 25 0.4 % + 25 0.7 % + 40 3.5 % + 40
[5]
500 mV 0.01 mV 1.5 % + 60 0.3 % + 25 0.4 % + 25 0.7 % + 40 3.5 % + 40
AC V 5 V
[1]
0.0001 V 1.5 % + 60 0.3 % + 25 0.6 % + 25 1.5 % + 40 3.5 % + 40
[5]
50 V
[1]
0.001 V 1.5 % + 60 0.3 % + 25 0.4 % + 25 0.7 % + 40 3.5 % + 40
500 V
[1]
0.01 V 1.5 % + 60 0.3 % + 25 0.4 % + 25 Not Spec’d Not Spec’d
1000 V 0.1 V 1.5 % + 60 0.3 % + 25 0.4 % + 25 Not Spec’d Not Spec’d
dBV -70 to -62 dB
[3]
0.01 dB 3 dB 1.5 dB 2 dB 2 dB 3 dB
-62 to -52 dB
[3]
0.01 dB 1.5 dB 1.0 dB 1 dB 1 dB 2 dB
-52 to -6 dB
[3]
0.01 dB 0.2 dB 0.1 dB 0.1 dB 0.2 dB 0.8 dB
-6 to +34 dB
[3]
0.01 dB 0.2 dB 0.1 dB 0.1 dB 0.2 dB 0.8 dB
34 to 60 dB
[3]
0.01 dB 0.2 dB 0.1 dB 0.1 dB Not Spec’d Not Spec’d
Low pass
filter
[4]
2 % + 80 2 % + 40
2 % +10
-6 % -60
[2]
Not Spec’d Not Spec’d

[4]
1000 V 0.1 V 2 % + 80 2 % + 40 2 % + 40
[6]
Not Spec’d Not Spec’d
[1] Below 5 % of range, add 20 counts.
[2] 10 A to 20 A, 30 seconds on, 10 minutes off. >10 A not specified.
[3] 400 mA continuous; 400 mA to 550 mA for 2 minutes on, 1 minute off.
[4] 289 only.
[5] Add 2.5 % above 65 kHz.
[6] Range is limited to 440 Hz.
See Detailed Specifications introduction for additional information.
AC Current Specifications
Function Range Resolution
Accuracy
20 to 45 Hz 45 to 1 kHz 1 to 20 kHz 20 to 100 kHz
[4]
AC μA
[3]
500 μA 0.01 μA
1 % + 20 0.6 % + 20 0.6 % + 20 5 % + 40
5000 μA 0.1 μA
1 % + 5 0.6 % + 5 0.6 % + 10 5 % + 40
AC mA
[3]
50 mA 0.001 mA 1 % + 20 0.6 % + 20 0.6 % + 20 5 % + 40
400 mA 0.01 mA 1 % + 5 0.6 % + 5 1.5 % + 10 5 % + 40
AC A
[2]
5 A 0.0001 A 1.5 % + 20 0.8 % + 20 3 % + 40
[4]
Not Spec’d
10 A
[1]
0.001 A 1.5 % + 5 0.8 % + 5 3 % + 10
[4]
Not Spec’d
[1] 10 A range (10 % to 100 % of range).
[2] 20 A for 30 seconds on, 10 minutes off. >10 A not specified.
[3] 400 mA continuous; 550 mA for 2 minutes on, 1 minute off.
[4] Verified by design and type tests.
See Detailed Specifications introduction for additional information.

Fluke 287C Specifications

General

Brand	Fluke
Model	287C
Category	Multimeter
Language	English