Agilent Technologies 5749A Welding System User Manual


 
Appendix B Verification and Calibration
94 Series N5700 User’s Guide
Verification
Verification procedures verify that the power supply is operating
normally and is within published specifications. There are two types
of verification tests:
Performance These tests verify that the power supply meets all of the specifications listed
in Appendix A. They can also be used to verify that the power supply is
properly calibrated.
Calibration These procedures calibrate the power supply.
If the power supply fails any of the tests or if abnormal test results
are obtained, try calibrating the unit. If calibration is unsuccessful,
return the unit to an Agilent Technologies repair facility (see
Appendix D).
Equipment Required
The equipment listed in the following table, or the equivalent to this
equipment, is required for the calibration and performance tests. A
test record sheet may be found at the back of this section.
Type Specifications Recommended Model
Digital Voltmeter Resolution: 10 nV @ 1V;
Readout: 8 1/2 digits
Accuracy: 20 ppm
Agilent 3458A or equivalent
Current Monitor
15 A (0.1) 0.04%, TC=5ppm/°C
100 A (0.01) 0.04%, TC=5ppm/°C
300 A (0.001) 0.04%, TC=5ppm/°C
Guildline 9230/15
Guildline 9230/100
Guildline 9230/300
Load Resistor For 750 W models:
0.06, 0.09, 0.21, 0.53, 1.20, 2.11, 4.80, 8.42,
13.33, 30.0, 120, 462 - all resistors 1kW minimum.
For 1500 W models:
0.03, 0.04, 0.10, 0.26, 0.60, 1.05, 2.40, 4.21,
6.67, 15.0, 60, 231 - all resistors 2kW minimum.
Electronic Load 150 V, 100 A minimum (for Models N5741- N5750A)
150 V, 180 A minimum (for Models N5761- N5770A)
Agilent N3300A mainframe,
with 3 - N3305A modules
GPIB Controller Full GPIB capabilities (for calibrating the unit over the GPIB) Agilent 82350B or
equivalent
Oscilloscope Sensitivity: 1 mV
Bandwidth Limit: 20 MHz
Probe: 1:1 with RF tip
Agilent Infiniium or
equivalent
RMS Voltmeter True RMS
Bandwidth: 20 MHz
Sensitivity: 100 µV
Rhode and Schwartz Model
URE3 or equivalent
Differential Amplifier Bandwidth: 20 MHz LaCroy 1855A, DA1850A,
or equivalent
Terminations
1 – 50 BNC termination
2 – 50, 1/8 W termination resistors
Variable-voltage xfmr
or AC source
Adjustable to highest rated input voltage range.
Power: 2000 VA
Agilent 6813B or equivalent