National Instruments 5102 User Manual
USER GUIDE
C
ALIBRATING THE
C
ALIBRATIONEXECUTIVE
NI 5102
Contents
Introduction............................................................................................. 2
What Is Calibration? ........................................................................ 2
Why Should You Calibrate? ............................................................ 2
How Often Should You Calibrate?.................................................. 2
Equipment and Other Test Requirements ...............................................3
Test Equipment ................................................................................ 3
Recommended Equipment........................................................3
Alternative Equipment.............................................................. 4
Connectors ................................................................................4
Documentation................................................................................. 4
Software ........................................................................................... 5
Test Conditions ................................................................................ 5
Calibration Procedures............................................................................ 6
Connecting Your Calibrator, DMM, and NI 5102........................... 6
Running the Calibration Executive Procedure................................. 6
Viewing the Calibration Report....................................................... 7
Technical Support Resources.................................................................. 8
NI Web Support ............................................................................... 8
Worldwide Support.......................................................................... 8
™
WITH
National Instruments™,NI™, and ni.com™are trademarks of National Instruments Corporation. Product and company names mentioned herein are
trademarks or trade names of their respective companies.
323070A-01 Copyright © 2001 National Instruments Corp. All rights reserved. April 2001
Introduction
This document contains information and step-by-step instructions for
loading and running the calibration procedure for the NI 5102 using
Calibration Executive.
What Is Calibration?
Calibration consists of verifying the measurement accuracy of a device
and correcting for any measurement error. Verification is measuring the
performance of a device and comparing the results to the factory
specifications of the device. National Instruments calibrates every 5102
device at the factory. During the factory calibration process, the calibration
constants are stored on the EEPROM. These values are loaded from
memory and used as needed by the device.
Why Should You Calibrate?
The accuracy of electronic components drifts with time and temperature,
which can affect measurement accuracy as the device ages. Calibration
restores your device to its specified accuracy and ensures that it still meets
National Instruments standards.
How Often Should You Calibrate?
The measurement accuracy requirements of your application determine
how often you should externally calibrate your NI 5102 device.
National Instruments recommends that you perform a complete
calibration at least once every year. You can shorten this interval to
90 days or six months based on the demands of your application.
You can also use the verification procedure at a regular interval to
determine if your oscilloscope needs adjustment.
Calibrating the NI 5102 with Calibration Executive 2 ni.com
Equipment and Other Test Requirements
This section describes the equipment, documentation, software, and test
conditions needed for calibration.
Test Equipment
Tables 1 and 2 list specifications for equipment you can use to calibrate
your NI 5102 with Calibration Executive.
Recommended Equipment
Table 1 lists the equipment that National Instruments recommends for this
procedure.
Table 1. Required Equipment Specifications for NI 5102 Calibration
Required
Equipment
Scope Calibrator Wav ete k 95 00
Active Head Wav ete k 95 10
Recommended
Equipment
Scope Calibrator
Active Head or
better
If you do not have the recommended instruments, use the accuracy
requirements listed above to select a substitute calibration standard.
Refer to Table 2 for a list of alternative instruments you can use for the
calibration procedure. Although these instruments are acceptable,
National Instruments recommends that you use the instruments from
Table 1.
Parameter
Measured
Ve r t i c a l O f f s e t 0 VDC ±0.1 mV
Ve r t i c a l G a i n DC ±40 mV to ±4.5 V, ±0.1%
AC Coupling sine wave 9–13 Hz ±100 ppm,
Bandwidth 1.5% amplitude flatness
Input Impedance 2-wire resistance accuracy of
— —
Necessary Specifications
into 1 M Ω
1.8 Vpp ±2%into1MΩ
for leveled sine wave
100 kHz–15 MHz ±50 ppm,
0.2–1.9 Vpp ± 2% into 1 MΩ
0.25% for 1 MΩ measurement
© National Instruments Corporation 3 Calibrating the NI 5102 with Calibration Executive
Loading...