Detailed Accuracy Specifications - Fluke 87 Series IV User Manual

Detailed Accuracy Specifications

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 ] )
AC mV, AC V, AC µA, AC mA, and AC A specifications are ac coupled, true rms and are valid from 5% of range to
100 % of range. AC crest factor can be up to 3.0 at full-scale, 6.0 at half-scale except the 3000 mV and 1000 V ranges
where it is 1.5 at full scale, 3.0 at half-scale.
Function Range
1, 2
AC mV 50.000 mV
500.00 mV
3000.0 mV
1, 2
AC V 5.0000 V
50.000 V
500.00 V
1000.0 V
dBV 52 to 6
6 to +34
+34 to +60
1. For the 5,000 count mode, divide the number of least significant digits (counts) by 10.
2. A residual reading of 8 to 80 digits with leads shorted, will not affect stated accuracy above 5 % of range.
Resolution 45 Hz-1 kHz
0.001 mV 0.4 % + 40
0.01 mV 0.4 % + 40
0.1 mV 0.4 % + 40
0.0001 V 0.4 % + 40
0.001 V 0.4 % + 40
0.01 V 0.4 % + 40
0.1 V 0.4 % + 40
0.01 dB 0.1 dB
0.01 dB 0.1 dB
0.01 dB 0.1 dB
Detailed Accuracy Specifications
Accuracy
20-45 Hz 1 kHz-10 kHz
2 % + 80 5 % + 40
2 % + 80 5 % + 40
2 % + 80 0.4 % + 40
2 % + 80 0.4 % + 40
2 % + 80 0.4 % + 40
2 % + 80 0.4 % + 40
2 % + 80 0.4 % + 40
0.2 dB 0.5 dB
0.2 dB 0.1 dB
0.2 dB 0.1 dB
Specifications
10 kHz-20 kHz 20 kHz-100 kHz
5 % + 40 15 % + 40
5 % + 40 6 % + 40
1.5 % + 40 6 % + 40
1.5 % + 40 6 % + 40
1.5 % + 40 6 % + 40
Not specified Not specified
Not specified Not specified
0.5 dB 2.0 dB
0.2 dB 0.5 dB
Not specified Not specified
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