Agilent Technologies 6634B, 66332A, 6633B, 6632B service manual Measurement Techniques, Test Setup

2 - Verification and Performance Tests

Resistor	1 ohm, 50 W		Ohmite L50J1R0
(substitute for electronic	3 ohm, 100 W	(Agilent 66332A/6632B)	Ohmite RLS5R0 (adjustable)
load if load is too noisy	24 ohm, 100 W	(Agilent 6633B)	Ohmite RLS25R (adjustable)
for CC PARD test)	99 ohm, 100 W (Agilent 6634B)		Ohmite RLS100 (adjustable)
	1k ohm, 5%, 3W (all models)		Agilent 0813-0001
Oscilloscope	Sensitivity: 1 mV		Agilent 54504A or equivalent
	Bandwidth Limit: 20 MHz
	Probe: 1:1 with RF tip
RMS Voltmeter	True RMS		Agilent 3400B or equivalent
	Bandwidth: 20 MHz
	Sensitivity: 100 ∝V
Variable-Voltage	Adjustable to highest rated input voltage range.
Transformer	Power: 500 VA

Measurement Techniques

Test Setup

Most tests are performed at the rear terminals of the supply as shown in Figure 2-1a. Measure the dc voltage directly at the +S and -S terminals.

- + 240 VDC MAX TO - + 240 VDC MAX TO

+S + - -S +S + - -S

DVM, Scope, or	+
RMS voltmeter
(for CV tests)	-

	+
DC	Load
Ammeter	resistor
	1 k

-

DVM or	+
RMS voltmeter
(for CC tests)	-

Current

monitor

+-

Electronic

Load

(see note)

B.

+

DC

Ammeter

-

- + 240 VDC MAX TO

+S + - -S

Load

resistor 1 k

	Note: Use dc supply with same polarity
	connections for - CC tests.
A.	Replace load with appropriate
	resistor for CC noise test.

C.

+-

External

DC supply

Figure 2-1. Test Setup

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