Agilent Technologies AGILENT MODELS 6023A and 6028A Performance Tests, Measurement Techniques

Table 2-3. Guide to Recalibration After Repair

Printed Circuit		Block Name	Circuit Within		Ref.	Perform These
	Board			Block	Designator	Procedures*
A1 Main Board					R3	4
A1	Main Board				T1	4 then 5
A4	Power Mesh				T3	4 then 5 Board
A4 Power Mesh					CR7	4 then 5 Board
A2	Control Board	Constant Voltage	All Except Current		All	1 then 2
		(CV) Circuit		Source
A2	Control Board	Constant Voltage	Current Source		All	6
		(CV) Circuit
A2	Control Board	Constant Current			All	3 then 4
		(CC) Circuit
A2	Control Board	Power Limit			All	4 then 5
		Comparator
A2	Control Board	Bias Power Supplies	± 15V Supplies		All	All
A2	Control Board				U9, R79, R80, R24	7
		* Code To Calibration Procedure To Be Performed
1.	V-MON Zero Calibration		4. I-MON Full Scale (F/S) Calibration
2.	Common-Mode Calibration		5.	Power Limit Calibration
3.	I-MON Full Scale (F/S) Zero Calibration		6. Resistance Programming Full Scale (F/S) Calibration
			7.	Meter Full Scale (F/S) Calibration

Performance Tests

The following paragraphs provide test procedures for verifying the unit's compliance with the specifications of Table 1-1 in the Operating Manual. Please refer to CALIBRATION PROCEDURE or TROUBLESHOOTING if you observe out-of-specification performance.

Measurement Techniques

Setup For All Tests. Measure the output voltage directly at the + S and - S terminals. Connect unit for local sensing, and ensure that MODE switches are set as shown below. Select an adequate wire gauge for load leads using the procedures given in the Operating Manual for connecting the load.

Electronic Load. The test and calibration procedures use an electronic load to test the unit quickly and accurately. If an electronic load is not available, you may substitute a 2Ω 250W load resistor for the electronic load in these tests:

CV Source Effect (Line Regulation)

CC Load Effect (Load Regulation)

You may substitute a 0.25Ω 250W load resistor in these tests:

CV Load Effect (Load Regulation)

CV PARD (Ripple and Noise)

CCSource Effect (Line Regulation) CC PARD (Ripple and Noise)

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