Instructions

AP033 Active Differential Probe
24
Performance Verification
This procedure can be used to verify the warranted characteristics of the AP033 Active
Differential Probe. You can do the performance verification without removing the
instrument covers and exposing yourself to hazardous voltages.
Adjustment should only be attempted if a parameter measured in the Performance
Verification Procedure is outside of the specified limits. Adjustment should only be
performed by qualified personnel.
The recommended calibration interval for the model AP033 is one year. The complete
performance verification procedure should be performed as the first step of annual
calibration. You can record test results on a photocopy of the Test Record at the end of
this section.
Test Equipment Required
Table 3 lists the test equipment and accessories (or their equivalents) that are required
for performance verification of the AP033 Active Differential Probe. Only the parameters
listed in boldface
in the “Minimum Requirements” column must be calibrated to the
accuracy indicated. Because the input and output connector types may vary on different
brands and models of test instruments, additional adapters or cables may be required.
Table 3, Performance Verification Test Equipment
Description
Minimum Requirements
Example Test Equipment
Wide Band Oscilloscope
(see note)
Minimum 1 GHz bandwidth
2 mV to 5 V scale factors ProBus
interface equipped
2% vertical accuracy
Teledyne LeCroy Wavepro 950
Digital Multimeter
DC: 0.1% accuracy
AC: 0.2% accuracy to measure
200 mV and 2 V rms @ 1 kHz 5½
digit resolution
Agilent Technologies 34401A
Fluke 8842A-09
Keithley 2001
Function Generator Sine Wave and Square Wave
output waveforms
20 Vp-p into 1 MΩ
70 Hz to 10 MHz frequency range
Agilent Technologies 33120A
Stanford Research Model
DS340
Leveled Sine Wave
Generator
2
Relative output level accurate to
3% flatness from 50 to 500 MHz
and 50 kHz. Output adjustable to
2 Vp-p
Tektronix SG504 with TM series
mainframe A high frequency
sine wave generator calibrated
using semi-automated software
leveled with a power meter may
be substituted.
Terminator, in-line, BNC
50 Ω ±2% coaxial termination
Pomona 4119-50
Terminator, precision,
BNC 50 Ω ±0.2%
Teledyne LeCroy TERM-CF01