Verifying Ac Voltage - Keithley SourceMeter 2790 Reference Manual

Hide thumbs Also See for SourceMeter 2790:

Table of Contents

Verifying AC voltage

Check AC voltage accuracy by applying accurate AC voltages at specific frequencies from

the AC voltage calibrator to the Model 7702 inputs. Verify that the displayed readings fall

within specified ranges.

Follow these steps to verify AC voltage accuracy:

Connections for Model 7702 AC volts verification

Do not exceed 300V RMS between Model 7702 INPUT H and L termi-

nals or between adjacent channels, or 8 × 10

instrument damage may occur.

Connect the Model 7702 CH1 H and L INPUT terminals to the AC voltage calibrator

Install the Model 7702 in Slot 1 of the Model 2790, then turn on the power and

allow the unit to warm up for two hours before proceeding. Be sure the front panel

INPUTS switch is set to the REAR position.

Select the AC volts function by pressing the ACV key. Close Channel 1 by press-

ing the CLOSE key and then keying in 101.

Set the Model 2790 for the 100mV range; make sure that REL is disabled.

Model 2790 SourceMeter

Amplifier (Connect to calibrator)

Calibrator (Output AC Voltage)

Switch System Reference Manual

V•Hz input, because