Keithley 2280S-32-6 - Select a Specific Measurement Range; Selecting a Specific Measurement Range

Series 2280 Precision DC Power Supply Reference Manual Section 2: General operation
077085503 / March 2019 2-75
Select a specific measurement range
You can set specific measurement ranges or allow the instrument to choose the ranges automatically.
The measurement range determines the full-scale input for the measurement. The measurement
range also affects the accuracy of the measurements and the maximum signal that can be measured.
Selecting a lower measurement range can increase measurement accuracy, but the measurement
must not exceed the range. If the measurement exceeds the range, an "Overflow" error will occur.
The Series 2280 has multiple current measurement ranges and one voltage range. These ranges are
listed in the following table.
Model
Current measurement range
Voltage measurement range
2280S-32-6
10 A
32 V
1 A
100 mA
10 mA
2280S-60-3
10 A
60 V
1 A
100 mA
10 mA
Selecting a specific measurement range
You must set the measurement function before you can set the measurement range. If you set the
measurement range to a specific value, measurement autoranging is disabled.
To ensure the best accuracy and resolution when selecting a measurement range, use the lowest
range possible that does not cause an overflow error.
To select a measurement range using the front-panel home screen:
1. Press the HOME key and select the Range key. The Range dialog box is displayed.
2. Use the up and down arrows to select the range. The home page is displayed again with the
selected value.