HP 3325A, 3325B manual Dc Offset with Ac Performance Check

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TB 9-6625-2049-35

Table 5. Dc Offset - Continued

Test instrument		Multimeter indications
DC OFFSET			(V dc)
settings		Min		Max
14.99	mV	0.01493		0.01505
-14.99	mV	-0.01505		-0.01493
4.999	mV	0.004979		0.005019
-4.999	mV	-0.005019		-0.004979
1.499	mV	0.001479		0.001519
-1.499	mV	-0.001519		-0.001479

NOTE

Perform (8) through (11) below for option 002 only.

(8)Remove 50Ω feedthrough termination from equipment setup.

(9)Press SIGNAL key on.

(10)Enter 20 VOLT using DATA keys. Multimeter will indicate between 19.775 and 20.225 V dc.

(11)Enter -20 VOLT using DATA keys. Multimeter will indicate between -19.775 and -20.225 V dc.

b.Adjustments. No adjustments can be made.

18.Dc Offset with Ac

a.Performance Check

(1) Connect SIGNAL to multimeter INPUT HI and LO using 50Ω feedthrough

termination.

(2)Press keys and enter values using DATA keys as listed in (a) through (i) below:

(a)SIGNAL off (option 002 not lit).

(b)FUNCTION sine wave.

(c)ENTRY FREQ.

(d)20.999 999 999 MHz.

(e)ENTRY AMPTD.

(f)1 VOLT.

(g)ENTRY DC OFFSET.

(h)4.5 VOLT.

(i)AMPTD CAL.

(3)Multimeter will indicate between 4.35 and 4.65 V dc.

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Contents Models 3325A and 3325B Forms, Records, and Reports Section Identification and DescriptionProgrammed amplitude at 1 kHz Section Equipment Requirements Spectrum Analyzer Section Calibration Process Equipment SetupPreliminary Instructions IN/OUT Harmonic Distortion a. Performance CheckEntry Amptd 20 dBm Entry DC Offset Volt Entry Freq 20 MHz 50 Hz Entry Amptd Volt Signal on Entry Freq 25 kHz Entry Amptd VoltAmplitude Modulation Distortion a. Performance Check Square Wave Characteristics Performance CheckEntry Freq MHz Entry Amptd Volt Entry DC Offset Ramp Retrace Performance Check Entry Freq MHz Entry Amptd RMSEntry Freq 10 kHz Entry Amptd Volt Entry Freq 20 MHz Entry Amptd Volt Frequency Accuracy Performance CheckEntry Freq 60 MHz SIG Input AdjustmentsBlue then Asgn Zero Phase Entry PhaseEntry Freq 100 kHz Entry Amptd 13 dBm Entry DC Offset Volt Sine wave Amplitude and Flatness Performance CheckEntry Amptd RMS Entry Freq 100 Hz Amptd CAL Press Entry Amptd key Entry DC Offset Entry Freq KHz Entry Amptd RMS Amptd CALSquare Wave Amplitude and Flatness Performance Check Triangle and Ramp Amplitude Performance Check KHz Entry Amptd RMS Amptd CALDc Offset Performance Check 100 Hz Amptd CALDc Offset with Ac Performance Check High Voltage Output Option 002 only Performance Check Entry Freq 100 kHz Entry Amptd RMS Amptd CAL Power SupplyEntry Freq KHz Entry Amptd RMS Amptd CAL Power supply assembly A2 test instrument top view Final ProcedurePIN