Agilent Technologies Welding System Agilent Technologies Welding System User Manual

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Chapter 3
Calibration Procedures
Automating Calibration Procedures
42
Automating Calibration Procedures
You can automate the complete verification procedures outlined in this chapter
if you have access to programmable test equipment. You can program the
instrument configurations specified for each test over the remote interface.
You can then enter readback verification data into a test program and compare
the results to the appropriate test limit values.
You can also enter calibration constants from the remote interface. Remote
operation is similar to the local front-panel procedure. You can use a computer
to perform the adjustment by first selecting the required setup. The calibration
value is sent to the power supply and then the calibration is initiated over the
remote interface. The power supply must be unsecured prior to initiating the
calibration procedure. An Agilent BASIC program for calibration over the GPIB
interface is listed at the end of this chapter.
For further details on programming the power supply, see chapters 3 and 4 in
the Agilent E3631A User's Guide.
Recommended Test Equipment
The test equipment recommended for the performance verification and
adjustment procedures is listed below. If the exact instrument is not available,
use the accuracy requirements shown to select substitute calibration
standards.
Table 3-1 Recommended Test Equipment
Instrument Requirements
Recommended
Model
Use
GPIB Controller Full GPIB capabilities
Agilent 82341C
interface card
Programming and
readback accuracy
Oscilloscope 100 MHz Agilent 54602A
Display transient response
and ripple & noise
waveform
RMS Voltmeter 20 MHz Measure rms ripple & noise
Digital Voltmeter
Resolution: 0.1 mV
Accuracy: 0.01%
Agilent 34401A Measure dc voltages
Electronic Load
Voltage Range: 50 Vdc
Current Range: 10 Adc
Open and Short Switches
Transient On/Off
Agilent 6063A
Measure load and line
regulations and transient
response time.
Resistive Loads (R
L
)
1.2Ω, 100 W
25Ω, 100 W
Measure ripple and noise
Current monitoring
Resistor (Shunt)
0.1Ω, 0.01% Constant current test setup

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