Agilent N3300A Data Sheet

Comparing N3300A Series Electronic Loads with Earlier Models
Introduction
The Agilent N3300A Series Electronic Loads are compatible in many ways with the previous HP/Agilent 6050B, 6051B, 60501B, 60502B, 60503B, 60504B, 60507B Electronic Loads. This means that in most cases, programs written for earlier electronic loads will run on the N3300A Series Electronic Loads. However, be aware that there are also many differences between the previous version and the N3300A Series loads that will require you to modify previous electronic load programs.
It is not the intent of this table to provide an exhaustive list of all the differences between previous version electronic loads and the N3300A Series loads or all possible solutions to problems with previously written software. This table only highlights the areas that affect the behavior of the instrument in normal use.
Table 1: Examples of Operating Differences
Difference Noticed Possible Reason (see table D-2)
Values read back on the display and over the bus are slightly different than on previous electronic load units.
Values read back on the display and over the bus are significantly different than on previous electronic load units.
Values on front panel display fluctuate more than on previous electronic load units.
Unit unexpectedly turns off; Prot annunciator is on. #11, #19 Response to analog programming input is different than on
previous electronic load units. Err annunciator comes on when program is run. #8, #9, #10, #13 Unit under test occasionally behaves unexpectedly. #1, #7
#1, #2, #3, #4
#1, #4, #7, #9
#2, #3, #4
#15, #16
Table 2: Reasons for Differences
Item HP/Agilent Series 6050x Agilent Series N3300A
1. Command 70 milliseconds (typical) 5 milliseconds (typical) Execution Time If external equipment is connected to the load, the decreased command
execution time of the N3300A Series loads may not allow sufficient settling time for the equipment under test. You may need to insert wait statements in your program if the equipment under test requires a certain amount of settling time after a load change before a measurement can be made.
2. Voltage Programming and Readback Range
3. Current Readback Range
4. Measurement Mode Single measurement occurs at
5. Programming Accuracy
(300W model shown)
6. Programming Resolution
(300W model shown)
1 range (model dependent): 0-60 volts or 0-150 volts or 0-240 volts The addition of voltage programming and readback ranges provides 16-bit accuracy with the N3300A Series loads. Existing programs may need to be modified to take advantage of the improved accuracy provided with the additional ranges. 1 range (model dependent): 0-10 amps or 0-30 amps or 0-60 amps or 0-120 amps The addition of current readback ranges provides greater accuracy with the N3300A Series loads. Existing programs may need to be modified to take advantage of the improved accuracy provided with the additional ranges.
command execution.
This feature provides greater accuracy and noise immunity when making measurements. The time required to make measurements with the N3300A Series loads may vary considerably, depending on the type of measurement specified. The default measurement settings on the N3300A Series loads are faster than measurements on previous electronic loads. Voltage (60V) = 0.1% +50mV Current (60A) = 0.1% +75mA Resistance (1) = 0.8% +8m Resistance (100) = 0.3% +8mS Resistance (10k ) = 0.3% +8mS
This feature provides greater accuracy with the N3300A Series loads. Existing programs may need to be modified to take advantage of the improved programming accuracy provided with the additional ranges. Voltage (60V) = 16mV Current (60A) = 16mA Resistance (1) = 0.27m Resistance (100) = 0.27mS Resistance (10k ) = 0.027mS This feature provides greater accuracy with the N3300A Series loads. Existing programs may need to be modified to take advantage of the improved programming resolution.
2 ranges (model dependent): 0-6, 0-60 volts or 0-15, 0-150 volts or 0-24, 0-240 volts
2 ranges (model dependent): 0-1, 0-10 amps or 0-3, 0-30 amps or 0-6, 0-60 amps or 0-12, 0-120 amps
Multiple measurements at command execution. Average value is returned. Number of samples and time interval between samples is programmable.
Voltage (60V) = 0.1% +8mV Current (60A) = 0.1% +12mA Resistance (2) = 0.4% +12m Resistance (20) = XX% +XXm Resistance (200) = XX% +XXm Resistance (2k ) = XX% +XXm
Voltage (60V) = 1mV Current (60A) = 1mA Resistance (2) = 0.02m Resistance (20) = XXm Resistance (200) = XXm
Table2: Differences (continued)
Item HP/Agilent Series 6050x Agilent Series N3300A
7. Mode/Range Change Performance
8. Calibration Calibration procedure for previous
9. Resistance Ranges
(300W model shown)
10. Resistance Slew Rate
11. UNR Status Reporting
12. *SAV 0 Storage Location
13. Error Messages Error messages for previous loads
14. Query Response *IDN? and *RDT? = Hewlett-
Input turns off between mode and range changes. This feature keeps the input on when modes and ranges change. This will affect the behavior of the device under test, since the input of N3300A Series loads no longer turns off as was the case with previous electronic loads.
loads is documented in the Operating manual. Existing programs must be modified to correctly calibrate the N3300A Series loads. 3 ranges: 0-1, 1-1k , 10-10k 5 ranges: 0-2, 1-20, 10-200Ω,
Resistance transients may not work in some cases. For example if you are transitioning from 1Ω to 1k Ω (in previous electronic loads), the command will not work with the resistance ranges in the N3300A Series loads. You can only transition within a specific resistance range (100 to 2k for example). 1 range slew rate uses the value programmed for the voltage slew. 1k and 10k range slew rate uses the values programmed for the current slew. The addition of resistance slew rates provides greater capability when programming input resistance. Existing programs must be modified to correctly program resistance slew rates. Applied in constant current mode and in 1k and the 10k resistance mode. This feature provides more comprehensive status reporting. Programs that use the UNR status reporting to generate service requests may need to be modified to account for the additional operating modes and ranges that may cause an unregulated status condition to be reported. Module settings are saved in individual modules. This feature saves all power up settings in the mainframe, not the module. This will cause the modules to behave according to the settings stored in each mainframe when swapped. Previous load modules cannot be installed in N3300A Series mainframes. N3300A Series modules cannot be installed in previous mainframes.
are documented in the Operating manual. This feature adds more error messages. Existing programs need to be modified to trap the additional error messages.
Packard and earlier model numbers.
This changes the company name and model numbers. Existing programs may need to be modified if the *IDN? and *RDT? queries are used.
Input stays on between mode and range changes.
Refer to the calibration procedure in the N3300A Series User's Guide.
100-2k
Slew rates are programmed in ohms/ second. Each resistance range has its own slew rate. Refer to Appendix A in the N3300A Series User's Guide.
Applies in all operating modes and ranges.
All module settings are saved in the mainframe.
Refer to the error message table in the N3300A Series User's Guide.
*IDN? and *RDT? = Agilent Technologies and N3300A Series model numbers; query number formats may also be different.
Table 2: Differences (continued)
Item HP/Agilent Series 6050x Agilent Series N3300A
15. CC and CV Analog Programming Accuracy
(300W model shown)
16. CR Analog Programming
17. List Programming Not available Lists containing up to 50 steps can be
18. Front Panel Deleted keys
19. Reverse Voltage Available on input terminals Available on input and sense terminals Protection This feature adds reverse voltage protection on the sense terminals. Load
20. Mainframe RS-232 Connector
21. Mainframe Digital Port
22. Module Interconnections
23. Line Voltage Selection
Current (60A) = 4.5% +75mA Voltage (60V) = 0.8% +200mV This feature improves analog programming accuracy in both constant current and in constant voltage mode. Existing programs may need to be modified to take advantage of the improved analog programming accuracy. Not available A 0-to-10V signal at the analog
This feature adds analog programming in constant resistance mode. Existing programs will need to be modified to use the analog programming available in constant resistance mode.
This feature adds list programming to the current, voltage, resistance, transient, and port functions. Existing programs will need to be modified to use lists. Refer to the N3300A Series User's Guide for details.
Range Short on/off Tran Level Tran on/off Slew Freq Dcycl Mode
This feature adds additional keys and menus to the front panel. This results in significant differences in front panel operation between previous and N3300A Series loads. Refer to the N3300A Series User's Guide for more information.
modules will shut down with reverse voltage on remote sense terminals. Not available An RS-232 connector is available on the
Existing programs must be modified to use the digital port on the mainframe. Not available A 2-pin user-programmable digital
Existing programs must be modified to use the digital port on the mainframe. 3 ribbon cables including ac line distribution. Previous load modules cannot be installed in N3300A Series mainframes. N3300A Series modules cannot be installed in previous mainframes. Accomplished via internal switches on the mainframe. This feature eliminates manual line voltage selection. The line input of the N3300A Series mainframe is rated from 85 - 264 Vac.
Refer to Appendix A in the N3300A Series User's Guide.
programming input corresponds to the minimum to full scale input resistance of the selected resistance range.
programmed and downloaded to each electronic load module. They can be run simultaneously in response to an external trigger.
Added keys Ident Sense Channel Protect tuStep π θ List Trigger Func Trigger Control
2-pin user-programmable digital output port is available on the back of the mainframe.
output port is available on the back of the mainframe.
1 ribbon cable with no ac line distribution.
No switching required.
Loading...