Name: Keithley 2002
Brand: Keithley
Rating: 4 (1 reviews)

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Relative

Rel subtracts a reference value from actual readings. When rel is enabled, the instrument uses

the present reading as a relative value. Subsequent readings will be the difference between the

actual input value and the rel value.

Actual Input – Reference = Displayed Reading

Thus, when you perform a zero correction for DCV,

Ω

2, and

Ω

4 measurements by enabling

REL, the displayed offset becomes the reference value. Subtracting the offset from the actual

input zeroes the display.

The rel (relative) operation is enabled by pressing the REL key (REL annunciator turns on).

Pressing REL a second time disables rel. You can also enter and enable a rel value from the

CONFIG-REL display.

A rel value can be established for each measurement function. The state and value of rel for

each measurement function are saved when changing functions. Once a rel value is established

for a measurement function, the value is the same for all ranges.

Conﬁguring Rel

To check or change a rel value for a measurement function, perform the following steps:

1. Select the desired measurement function.

2. Press the CONFIG key and then the REL key to display the present rel value.

3. Use the cursor keys ( and ) and the RANGE keys to change the rel value and press

ENTER. The instrument will return to the normal display state with rel enabled.

2-10 Measurement Options

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