Fluke 87 V/AN - Page 14

87 V/AN
Service Manual
6
Table 2. AC Voltage Function Specifications
Function Range Resolution Accuracy
45 - 65 Hz 30 - 200 Hz
200 - 440 Hz
440 Hz - 1
kHz
1 - 5 kHz 5 - 20 kHz
1
± (0.7 % + 4)
± (0.7 % + 2)
± (2.0 % + 4)
± (2.0 % + 20)
600.0 mV
6.000 V
60.00 V
600.0 V
0.1 mV
0.001 V
0.01 V
0.1 V
± (2.0 % + 4)
3
unspecified
1000 V 1 V
± (1.0 % + 4)
unspecified unspecified
K
2,4
Low pass filter ± (0.7 % + 2)
± (1.0 % + 4)
+1 % + 4
-6 % - 4
5
unspecified
unspecified unspecified
1. Below 10 % of range, add 12 counts.
2. The Meter
is a true rms responding meter. When the input leads are shorted together in the ac functions, the Meter
may display a residual reading between 1 and 30 counts. A 30 count residual reading will cause only a 2-digit
change for readings over 3 % of range. Using REL to offset this reading may produce a much larger constant error
in later measurements.
3. Frequency range: 1 kHz to 2.5 kHz.
4. A residual reading of up to 13 digits with leads shorted, will not affect stated accuracy above 3 % of range.
5. Specification increases from -1% at 200 Hz to -6% at 440 Hz when filter is in use.
Table 3. DC Voltage, Resistance, and Conductance Function Specifications
Function Range Resolution Accuracy
L
6.000 V
60.00 V
600.0 V
1000 V
0.001 V
0.01 V
0.1 V
1 V
± (0.05 % + 1)
± (0.05 % + 1)
± (0.05 % + 1)
± (0.05 % + 1)
F
mV
600.0 mV 0.1 mV ± (0.1 % + 1)
e
nS
600.0 Ω
6.000 kΩ
60.00 kΩ
600.0 kΩ
6.000 MΩ
50.00 MΩ
60.00 nS
0.1 Ω
0.001 kΩ
0.01 kΩ
0.1 kΩ
0.001 MΩ
0.01 MΩ
0.01 nS
± (0.2 % + 2)
1
± (0.2 % + 1)
± (0.2 % + 1)
± (0.6 % + 1)
± (0.6 % + 1)
± (1.0 % + 3)
2
± (1.0 % + 10)
1
1. When using the REL ∆ function to compensate for offsets.
2. Add 0.5 % of reading when measuring above 30 MΩ in the 50 MΩ range.
Table 4. Temperature Specifications
Temperature Resolution Accuracy
1,2
-200 °C to +1090 °C
-328 °F to +1994 °F
0.1 °C
0.1 °F
1 % + 10
1 % + 18
1. Does not include error of the thermocouple probe.
2. Accuracy specification assumes ambient temperature stable to
± 1 °C. For ambient temperature changes of ± 5 °C,
rated accuracy applies after 1 hour.