Verifying The Current Source - Keithley SourceMeter 2790 Reference Manual

Hide thumbs Also See for SourceMeter 2790:

Table of Contents

Verifying the current source

Check the Model 7751/7752/7753 current source accuracy by setting the current source to

a specific value and then measuring the current with a DMM.

Follow these steps to verify current source accuracy:

Figure 16-16

Connections for Model 7751/7752/7753 current source verification

HP3458A Digital Multimeter

Connect the Model 7751/7752/7753 current source terminals to the DMM, as

Install the Model 7751/7752/7753 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 DMM DC amps function and enable autorange.

Set the Model 7751/7752/7753 source current to 50mA as follows:

Press SHIFT, CARD, then CONFIG.

Select SLOT1: 7751, SLOT1: 7752, or SLOT1: 7753, then press ENTER.

Select the I-C submenu, then set the source to 50mA.

Press EXIT to return to normal display.

Verify that the DMM reading is within these limits: 49.96mA to 50.04mA.

Model 2790 SourceMeter

Switch System Reference Manual

Model 7751, 7752, or 7753

SOURCE SENSE

7751, 7752, or 7753