HP 3325B, 3325A manual Section Equipment Requirements

Page 4

TB 9-6625-2049-35

Table 1. Calibration Description - Continued

Test instrument parameters

Performance specifications

Amplitude

accuracy

with dc

 

 

Tolerance relative to

offset and

no

attenuation

 

 

programmed amplitude

(range 1)

into 50Ω load

 

 

 

 

 

 

Sine wave: .001 Hz to 100 kHz

±0.3 dB

 

 

 

Square: .001 Hz to 100 kHz

±3%

 

 

 

Triangle: .001 Hz to 2 kHz

±4%

 

 

 

2 kHz to 10 kHz

±6%

 

 

 

Ramps: .001 Hz to 500 Hz

±4%

 

 

 

500 Hz to 10 kHz

±11%

 

 

 

 

 

Tolerance relative to

 

 

 

Function and frequency range

programmed amplitude

Attenuator accuracy (these

.001 Hz to 100 kHz

±0.1 dB

errors are additive with the

Attenuator ranges 2 through 8

 

amplitude accuracy errors)

 

 

 

 

 

 

 

 

 

 

 

 

100 kHz to 10 MHz

±0.2 dB

 

 

 

Attenuator ranges 2 through 8

 

 

 

 

10 MHz to 20 MHz

 

 

 

 

Attenuator ranges 2 through 4

0.2 dB

 

 

 

Attenuator ranges 5 through 8

±0.5 dB

Amplitude output

 

Range: 1.000 mV to 10.00 V p-p

 

 

Amplitude (option 002)

Range: 4 mV to 40 V p-p (>500Ω)

 

(high voltage output)

Accuracy: +2% of full output for each range at 2 kHz

 

 

 

Flatness: +10% of programmed amplitude

Dc offset

 

 

Range: +5 V dc

 

 

 

 

Accuracy: +0.4% of full peak output for each attenuator range2

Dc offset (option 002)

 

 

Range: +20 V dc

 

 

 

 

Accuracy: + (1% +25 mV) of full output for each attenuator range

Dc plus ac

 

 

 

 

Range: <1 MHz

 

 

 

 

Accuracy: +1.2%

 

 

 

 

Ramps: +2.4%

 

 

 

 

Range: >1 MHz

 

 

 

 

Accuracy: +3%

 

1Not verified below 50 Hz.

 

 

 

2Except lowest attenuator range where accuracy is ±20 μV.

SECTION II

EQUIPMENT REQUIREMENTS

4.Equipment Required. Table 2. identifies the specific equipment to be used in this calibration procedure. This equipment is issued with Secondary Transfer Calibration Standards Set AN/GSM-287. Alternate items may be used by the calibrating activity. The item selected must be verified to perform satisfactorily prior to use and must bear evidence of current calibration. The equipment must meet or exceed the minimum use specifications listed in table 2. The accuracies listed in table 2 provide a four-to-one ratio between the standard and TI.

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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 Section Calibration Process Equipment SetupPreliminary Instructions IN/OUT Harmonic Distortion a. Performance CheckEntry Amptd 20 dBm Entry DC Offset Volt Entry Freq 20 MHz Signal on Entry Freq 25 kHz Entry Amptd Volt 50 Hz 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 Adjustments SIG InputBlue 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 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 100 kHz Entry Amptd RMS Amptd CAL Power SupplyEntry Freq KHz Entry Amptd RMS Amptd CAL Final Procedure Power supply assembly A2 test instrument top viewPIN