Agilent Technologies AGILENT MODELS 6023A and 6028A service manual Calibration Procedure, Mon

Table 2-2. Calibration Procedure

TEST	TESTED	TEST POINTS		TEST SEQUENCE AND ADJUSTMENTS		EXPECTED
	VARIABLE					RESULTS
Meter F/S	Meter Ref.	A2J3 pin 6 ( + )	a.	Connect DVM across test points and turn on	0.5V ± 50∝V
Adjust.	Voltage	M ( - )		ac power.
			b.	Adjust A2R24 to obtain the voltage range
				specified in the results.
Resistance	Prog. Voltage	VP ( + )	a.	Connect a 2KΩ 0.01%, ¼W programming	2.5V ±4mV
Programming		P ( - )		resistor and DVM between test points.
F/S			b.	Set MODE switch as in Figure 2-1 and turn on
Adjust.				ac power.
			c.	Adjust A2R23 to obtain the voltage range
				specified in the results.
V-MON	V-MON	VM ( + )	a.	Set voltage and current controls to minimum	0 ± 20∝V
Zero		M ( - )		settings.
Adjust.			b.	Disable power supply as in Initial Setup step i.
			c.	Short circuit output terminals and connect the
				DVM between test points. Turn on power
				supply.
			d.	Adjust V-MON Zero trim pot A2R22 to
				voltage range specified in the results.
Common	Residual	VM ( + )	a.	Set voltage and current controls to minimum.	IR ± 20∝V
Mode	Output	M ( - )	b.	Disable power supply as Initial Setup step i.
Adjust.	Voltage		c.	Turn on ac power and record the initial
	VM( + )			voltage (IR) with DVM across test points.
			d.	Remove the - S( + ) and – OUT( - ) and
				connect a 1Vdc power supply between - S( + )
				and – OUT( - ). See Figure 2-1.
			e.	Adjust A2R21 to the voltage range specified.
			f.	Remove the 1V supply and replace jumpers.
I-MON	I-MON	IM ( + )	a.	Set voltage and current controls to minimum.	0 ± 100∝V
Zero		M (-)	b.	Turn on ac power.	(6023A)
Adjust.			c.	Connect DVM across test points and adjust	0	±		∝
				I-MON Zero trim pot A2R8 as shown in			25 V
					(6028A)
				results.
I-MON	I-MON	IM ( + )	a.	Perform I-MON Zero Adjust before	IR*
F / S		M ( - )		proceeding .
Adjust.			b.	Connect a 0.001Ω 0.05% (6023A), 0.100Ω
				0.05% (6028A) current monitoring resistor
				Rm across the output terminals.
			c.	Turn on ac power and using the “Display
				Setting”, set current control to 30A (6023A),
				10A (6028A), and voltage control to 5V.
			d.	Connect DVM across test points and take an
				initial reading (IR).
		Rm ( + )	e.	Connect DVM across Rm monitoring	0.006 IR*
		Rm ( - )		terminals and adjust A2R9 as shown in the	+40∝V (6023A),
				results.	0.200			±	1	∝
										V
					(6028A)
*IR = Initial Reading

12