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Does the L449XA have USB? What interfaces are built in?
LAN and GPIB are included. The 82357B USB/GPIB converter is available if you require USB.

FAQ 2008-04-04

What DC power is available on the L449XA?
The L449XA can provide 5V/1A, 12V/3A, 24V/0.6A, max power is 42 watts.

FAQ 2008-04-04

Do I have to buy distribution boards for the L4490A/L4491A?
Yes, the distribution boards are required to route the control signals to the switches and attenuators.

FAQ 2008-04-04

How many switch sequences can I save in the L449XA and where are they stored?
Up to 500 switch sequences, each sequence up to 1024 bytes.

FAQ 2008-04-04

How many instrument states can I save in the L449XA?
Five instrument states, but you have the ability to save up to 500 switch sequences.

FAQ 2008-04-04

What is the expected lifetime of the relays used in the Keysight 34970A plug-in modules?
The Keysight 34970A Relay Maintenance System automatically counts the cycles on each relay in the instrument and stores the total count in non-volatile memory on each switch module.

FAQ 2008-01-08

How do I configure Keysight I/O cards and converters to work with the National Instruments software?
There are a few, simple steps that you need to take to make National Instruments software work with Keysight I/O cards and converters.

FAQ 2007-12-09

What limit types are available?
For multiplexer channels you can select any of these six limit settings:

FAQ 2007-11-19

What are events?
Events allow you to control what happens when a scan is started or stopped or one or more limits occur.

FAQ 2007-11-19

How do I stop a scan when using multiple scan lists?
Scanning can be stopped in these ways:

FAQ 2007-11-19

What are notifications?
You can perform a notification when the corresponding event (“Configure Events” tab) occurs.

FAQ 2007-11-19

Does the Keysight 34951A D/A Converter require a Settling Time for Generated AC Signals?
Yes. Settling time depends on the number of points of the AC waveform and the type of load.

FAQ 2007-11-18

What is the replacement for the Keysight 11764A drive cable?
11764-60004

FAQ 2007-11-14

What are the differences between the BenchLink DataLogger software for 34970A and 34980A?

FAQ 2007-07-20

Can Excel control a scan, and make and record measurements using the 34980A?
Use the 34980A IntuiLink add-in or the Excel Macro language.

FAQ 2007-01-22

Can the 34980A automatically open or close Switches based on Alarm Conditions?
Yes. The 34980A can use the Sequence feature to allow the instrument to automatically open or close switches in the event of an alarm.

FAQ 2007-01-11

What is the maximum number of readings you can obtain from the 34970A directly?

FAQ 2007-01-10

What type of cable is supplied with the Keysight 34905A and 34906A dual 4-channel RF multiplexers?
An 18 inch cable with SMB to BNC connectors is supplied.

FAQ 2007-01-10

How do I disable the front panel display on the 34970A Data Acquisition Unit in order to achieve the maximum scanning speed for measurement?
This cannot be done via the front panel controls, it can only be done remotely via the Benchlink Data Logger II Software or programmatically.

FAQ 2007-01-10

Can I remove a 100V or above common mode voltage when making thermocouple measurements using the 34970A?
Yes, for less than 300V peak by setting the internal DMM's integration time to a value of 1 or larger number of power line cycles.

FAQ 2007-01-10

Can the measurements be displayed on the 34980 front-panel?
No.

FAQ 2007-01-10

What is the Temperature Measurement Range of the Keysight 34307A Thermocouples?
Use the specifications of the Omega Engineering Inc thermocouple wire with part number TT-J-24.

FAQ 2007-01-09

Why I am getting incorrect results when measuring the temperature of a switch with the 34901A?
If you are doing thermocouple measurements with an AC signal, you need expect noise in the readings. You can reduce this noise by applying the common mode noise rejection.

FAQ 2007-01-09

What types of internal memory does the Keysight 34970A Data Acquisition Switch Unit have?
Please refer to the document linked to this page for a comprehensive listing of Keysight 34970A internal memory.

FAQ 2006-10-31

Keysight DIO Diagnostic Help File
Help File of Keysight U2100A Series USB DIO Diagnostic

FAQ 2006-10-18

CHM CHM 930 KB

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