Fluke 187 사용자 설명서
Specifications
Detailed Accuracy Specifications
7
7-5
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.
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.
Accuracy
Function
Range
Resolution
45 Hz-1 kHz
20-45 Hz
1 kHz-10 kHz
10 kHz-20 kHz 20 kHz-100 kHz
AC mV
1, 2
50.000 mV
0.001 mV
0.4 % + 40
2 % + 80
5 % + 40
5.5 % + 40
15 % + 40
500.00 mV
0.01 mV
0.4 % + 40
2 % + 80
5 % + 40
5.5 % + 40
8 % + 40
3000.0 mV
0.1 mV
0.4 % + 40
2 % + 80
0.4 % + 40
1.5 % + 40
8 % + 40
AC V
1, 2
5.0000 V
0.0001 V
0.4 % + 40
2 % + 80
0.4 % + 40
1.5 % + 40
8 % + 40
50.000 V
0.001 V
0.4 % + 40
2 % + 80
0.4 % + 40
1.5 % + 40
8 % + 40
500.00 V
0.01 V
0.4 % + 40
2 % + 80
0.4 % + 40
Not specified
Not specified
1000.0 V
0.1 V
0.4 % + 40
2 % + 80
0.4 % + 40
Not specified
Not specified
dBV
−
52 to
−
6
0.01 dB
0.1 dB
0.2 dB
0.5 dB
0.5 dB
1.4 dB
−
6 to +34
0.01 dB
0.1 dB
0.2 dB
0.1 dB
0.2 dB
0.8 dB
+34 to +60
0.01 dB
0.1 dB
0.2 dB
0.1 dB
Not specified
Not specified
1. For the 5,000 count mode, divide the number of least significant digits (counts) by 10.
2. A residual reading of 8 to 180 digits with leads shorted, will not affect stated accuracy above 5 % of range.
2. A residual reading of 8 to 180 digits with leads shorted, will not affect stated accuracy above 5 % of range.