Kepco Power Supply ATE 6-5M

Check the PRECISION VOLTMETER (M1) for 'zero' reading and correct, if necessary, with the PREAMP 'B' ZERO CONTROL.

Calibration of EXT. CURRENT CONTROL

Set EXT. CURRENT CONTROL to its maximum resistance.

Observe M1 and calibrate the ATE output current to the exact maximum rated value by adjusting the EXT. I₀ CAL. control.

Set EXT. CURRENT CONTROL to zero ohms again.

Re-check the previously calibrated zero point on M1 and correct with the PREAMP 'B' ZERO control if required.

Check the PRECISION VOLTMETER (M1) 'zero' reading and correct, if necessary, with the ATE I₀ ZERO control.

Model SN-488 Output Calibration

Set the Model SN-488 output to 1 volt.

Calibrate the ATE output current to the exact maximum rated output current using the SN-488 calibration control.

Set the Model SN-488 output to 'zero'.

Check the previously calibrated zero point on M1 and correct with the ATE I₀ ZERO control if required.

Refer to Section II, FIG. 2-1 for the location of all internal power supply controls

Refer to your SN-488 system manual for the location of the system calibration controls

Set VOLTAGE CONTROL SIGNAL to zero

Check the PRECISION VOLTMETER (M1) for 'zero' reading

Correct the M1 reading with the 'E₀ ZERO' control if necessary

Check the PRECISION VOLTMETER (M1) for 'zero' reading and correct, if necessary, with the PREAMP 'A' ZERO control.

Set EXT. VOLTAGE CONTROL to its maximum resistance.

Observe M1 and calibrate the ATE output voltage to the exact maximum rated value by adjusting the EXT. I₀ CAL. control.

Set EXT. VOLTAGE CONTROL to zero ohms again.

Re-check the previously calibrated zero point on M1 and correct with the PREAMP 'A' ZERO control if required.

Ensure the following equipment is available

Set CURRENT CONTROL SIGNAL to zero

Check the PRECISION VOLTMETER (M2) for 'zero' reading

Correct the 'zero' reading with the power supply 'I₀ ZERO' control if necessary

Set CURRENT CONTROL SIGNAL to its maximum value