FAQs
I need a different line frequency or voltage. What should I
do?
The Model 2657A requires a line voltage of 100 V AC to 240 V
AC (±10%) and a line frequency of either 50 Hz or 60 Hz.
Keithley Instruments configures the Model 2657A to the line
frequency appropriate to the final shipping destination of the
instrument. This line frequency is used for aperture (NPLC)
calculations for the integrating analog-to-digital converter (ADC).
You can manually configure the instrument to match the actual
line frequency.
To configure the line frequency from the front panel:
1. Press the
MENU
key.
2. Turn the navigation wheel to select
LINE-FREQ
.
3. Press the
ENTER
key.
4. Turn the navigation wheel to select the appropriate frequency.
Summary of Contents for 2657A
Page 1: ...Model 2657A High Power System SourceMeter Instrument Quick Start Guide...
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