Fluke 187, Руководство пользователя

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Model 187 & 189
Users Manual
7-8
Function Range Resolution Accuracy
Resistance
1
500.00
Ω
0.01
Ω
0.05 % + 10
3
5.0000 k
Ω
0.0001 k
Ω
0.05 % + 2
50.000 k
Ω
0.001 k
Ω
0.05 % + 2
500.00 k
Ω
0.01 k
Ω
0.05 % + 2
5.0000 M
Ω
0.0001 M
Ω
0.15 % + 4
2
5.000 M
Ω
up to
32.000 M
Ω
0.001 M
Ω
1.0 % + 4
2
32.0 M
Ω
up to
50.0 M
Ω
0.1 M
Ω
3.0 % + 2
4
50.0 M
Ω
up to
100.0 M
Ω
0.1 M
Ω
3.0% + 2
4
100.0 M
Ω
up to
500.0 M
Ω
0.1 M
Ω
10.0 % + 2
4
Conductance 50.00 nS 0.01 nS 1 % + 10
1. For the 5,000 count mode, divide the number of least significant digits (counts) by 10.
2. For relative humidity greater than 70 %, resistance accuracy is 0.5 % over 1 M
Ω
and 2.5 % over 10 M
Ω
.
3. Using relative mode (REL
∆
) to zero residual reading.
4. To ensure stated accuracy, switch to conductance mode and verify that the open circuit reading is less than 0.10 nS.