Kepco Power Supply ATE 36-3M

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.

Ensure the following equipment is available

Select R_M such that a convenient range on the precision voltmeter can be used (e.g., 0.1 ohm for 1 ampere output current)

Close S1 and set CURRENT CONTROL SIGNAL to zero

Check the PRECISION VOLTMETER (M2) for 'zero' reading and correct with the power supply 'I₀ ZERO' control if necessary

Set CURRENT CONTROL SIGNAL to its maximum value

Observe M2 and calibrate the power supply output current to the exact maximum rated value by adjusting the external control voltage (Channel B, full-scale cal. control)

Set CURRENT CONTROL SIGNAL to zero again

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.

Connect power supply to 115V a-c source or refer to par. 2-4 for other input voltages, if required.

Turn CURRENT CONTROL fully clockwise.

Turn VOLTAGE CONTROL fully counterclockwise.

Turn A-C POWER SWITCH/CIRCUIT BREAKER 'on'.

Is the VOLTAGE VIX indicator energized?

Observe and record the gradual increase of the output voltage as VOLTAGE CONTROL is turned clockwise.

Does the VOLTMETER read full scale?

Check the PRECISION VOLTMETER (M1) for 'zero' reading and correct, if necessary, with the ATE E₀ ZERO control.

Set the MODEL SN-488 input to 10 volts and observe M1.

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

Set the MODEL SN-488 output to 'zero' and check the previously calibrated zero point on M1.

Correct with the ATE E₀ ZERO control if required.

Set the ATE front panel CURRENT CONTROL according to your load requirements.