Fluke 189 User Manual

Page 92

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Model 187 & 189
Users Manual

7-8

Function

Range

Resolution

Accuracy

Resistance

1

500.00

0.01

0.05 % + 10

3

5.0000 k

0.0001 k

0.05 % + 2

50.000 k

0.001 k

0.05 % + 2

500.00 k

0.01 k

0.05 % + 2

5.0000 M

0.0001 M

0.15 % + 4

2

5.000 M

up to

32.000 M

0.001 M

1.0 % + 4

2

32.0 M

up to

50.0 M

0.1 M

3.0 % + 2

4

50.0 M

up to

100.0

M

0.1 M

3.0% + 2

4

100.0 M

up to

500.0

M

0.1 M

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

and 2.5 % over 10 M

.

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.

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