Performance Test And Calibration Procedures; Introduction; Equipment Required - Keysight N3300A User Manual

Performance Test and Calibration Procedures

Introduction

This appendix contains test procedures for checking the operation and calibration of the Keysight N330xA
Series Electronic Load Modules. The tests are performed using the front panel keypad of the N3300A or
N3301A Mainframes. The required test equipment is listed in Table B-1 and sample performance test record
cards are included at the end of the performance test section. The performance tests confirm the Keysight
N330xA Series Electronic Load Modules meet all their published specifications.
The calibration (adjustment) procedures create new calibration constants to bring the current, voltage and
resistance values within specifications. Calibration cannot be performed using the front panel keypad, an IEEE-
488 (GPIB) controller is required. Note that the Electronic Load Mainframe does not require calibration.
Important
Perform the verification procedures before calibrating your Electronic Load Module. If the
Electronic Load Module passes the verification procedures, the unit is operating within its
calibration limits and does not need to be re-calibrated.
If the electronic load requires service, refer to the list of Keysight Sales and Support Offices at the back of this
manual.

Equipment Required

The equipment listed in the following table, or the equivalent to this equipment, is required for verification and
calibration. An IEEE-488.2 controller is not required for verification.
Equipment
1
Current Shunts 0.1 Ohms @ 15 Amps, 0.015% @ 25 watts
0.01 Ohms @ 100 Amps, 0.015% @ 100 watts
0.001 Ohms @ 300 Amps, 0.015% @ 100 watts
Cooling Fan A fan is recommended to keep the current shunts cool
during the calibration procedures.
Voltmeter DC accuracy 0.01% 5 digit
Oscilloscope
Power Source 61Vdc / 61A minimum ( N3302A, N3304A, N3306A )
20Vdc / 122A minimum ( N3305A, N3306A )
151V dc / 5A minimum ( N3305A, N3307A )
241Vdc / 10A minimum ( N3303A )
Controller GPIB ( IEEE 488.2 )
1
A 4-terminal resistor ( current shunt ) is required to eliminate output current measurement errors caused by voltage drops in the load
leads and connections.
Table B-1. Equipment Required
Characteristics Recommended Models
Guildline 9230/15
Guildline 9230/100
Guildline 9230/300
Any model
Keysight 34401A or 3458A
Keysight 54520A
6031A, 6032A, 6033A, 6035A or
equivalent
HP Series 200/300 or PC with HP
82341 IEEE 488.2 Interface card and
Basic for Windows or equivalent
B
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