HP Official Manual for 3325A and 3325B Calibration and Service

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TB 9-6625-2049-35

 

 

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SECTION

II CALIBRATION PROCESS - Continued

 

 

 

I.

 

 

 

Triangle and ramp amplitude

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Dc offset

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Dc offset with ac

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High voltage output option 002 only

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Power supply

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Final procedure

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SECTION I

IDENTIFICATION AND DESCRIPTION

1.Test Instrument Identification. This bulletin provides instructions for the calibration of Synthesizer/Function Generator, Hewlett-Packard, Models 3325A( ) and 3325B( ). The manufacturer's manuals and TM 11-6625-3065-14 were used as the prime data sources in compiling these instructions. The equipment being calibrated will be referred to as the TI (test instrument) throughout this bulletin.

a.Model Variations. Option 001: High Stability Frequency Reference; Option 002: High Voltage Output; Option E04: includes Options 001, 002, and instrument front handles and chassis slides; Option 907: Front Handle Assembly; Option 908: Rack Mount Flange Kit; Option 909: Rack Mount Flange Kit/Front Handle Assembly; Option 910: Additional Operating and Service Manual. Variations among models are described in text, tables, and figures.

b.Time and Technique. The time required for this calibration is approximately 4 hours, using the dc and low frequency technique.

2.Forms, Records, and Reports

a. Forms, records and reports required for calibration personnel at all levels are prescribed by TB 750-25.

b. Adjustments to be reported are designated (R) at the end of the sentence in which they appear. When adjustments are in tables, the (R) follows the designated adjustment. Report only those adjustments made and designated with (R).

3.Calibration Description. TI parameters and performance specifications which pertain to this calibration are in table 1.

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Contents Models 3325A and 3325B Section Identification and Description Forms, Records, and ReportsProgrammed amplitude at 1 kHz Section Equipment Requirements Spectrum Analyzer Preliminary Instructions Equipment SetupSection Calibration Process Entry Amptd 20 dBm Entry DC Offset Volt Entry Freq 20 MHz Harmonic Distortion a. Performance CheckIN/OUT Signal on Entry Freq 25 kHz Entry Amptd Volt 50 Hz Entry Amptd VoltEntry Freq MHz Entry Amptd Volt Entry DC Offset Square Wave Characteristics Performance CheckAmplitude Modulation Distortion a. Performance Check Entry Freq 10 kHz Entry Amptd Volt Entry Freq MHz Entry Amptd RMSRamp Retrace Performance Check Entry Freq 60 MHz Frequency Accuracy Performance CheckEntry Freq 20 MHz Entry Amptd Volt Adjustments SIG InputEntry Freq 100 kHz Entry Amptd 13 dBm Entry PhaseBlue then Asgn Zero Phase Entry Amptd RMS Entry Freq 100 Hz Amptd CAL Sine wave Amplitude and Flatness Performance CheckEntry DC Offset Volt Entry DC Offset Entry Freq KHz Entry Amptd RMS Amptd CAL Press Entry Amptd keySquare Wave Amplitude and Flatness Performance Check KHz Entry Amptd RMS Amptd CAL Triangle and Ramp Amplitude Performance Check100 Hz Amptd CAL Dc Offset Performance CheckDc Offset with Ac Performance Check High Voltage Output Option 002 only Performance Check Entry Freq KHz Entry Amptd RMS Amptd CAL Power SupplyEntry Freq 100 kHz Entry Amptd RMS Amptd CAL Final Procedure Power supply assembly A2 test instrument top viewPIN