• Can temperature measurements with U1272A be compensated?

    Ambient temperature measured with a K type thermocouple connected to my U1272A agrees with the constant temperature displayed in the upper right of the display (within 1 degree C). Plugging the same thermocouple into ...
    last modified by Involute
  • 3458A System Error 114 on Start up

    Hi,   I have a older HP 3458A, SN 2823A18621, that has stated having a System Error 114, Multislope Rundown Conversion on Start up. Then it goes away and passes ACAL. The Keysight Service Note 3458A-07B sta...
    last modified by TSOneill5776
  • Cal Ram Battery

    I have a Agilent 3458A that needs a Cal Ram battery, however, I need to find out the manufacturing date. The SN is 2823A18621 and the is no date on the back of the unit. According to the Keysight instruction...
    last modified by TSOneill5776
  • U1273A vs. U1273AX

    The only difference I can find between the A and AX models is the specified operating temperature range. However, is the difference only due to the fact that the AX comes with and uses AA lithium batteries (which happ...
    last modified by glowitz
  • 34972A and Excel

    CAn I control this unit from excel? I want to be able to use excel as the external trigger and then have it: scan, export to an open excel file, and then whatever I want.  
    last modified by simister
  • u1241b AErr

    Hi all,   from some days, powering on the multimeter, in whatever option, with or without probes connected, i get a continuous sound and "AErr" error.   Any help would be very appreciated.   Regards,...
    last modified by angelo
  • 3458A boots up with "move JM132 and cycle power".

    Moving JM132  causes no change so instrument is stuck in this loop. Has anyone seen this and a fix?
    last modified by jazzmens1
  • 34461A C program dependencies

    Hi We are moving from RS232 to USB using multimeter 34461A as the replacement. I've installed the 'Keysight Instrument Control Bundle'. I can see the device connected and working using a USB connection.   I ha...
    last modified by ProsigDFB
  • How to Find Resource Name From IP Address

    My 34461A DMM uses a static IP address.  Connection Expert is able to find the networked resource from the IP address.  How do I do this in my C# application?  I have IO Libraries 18.1 installed.
    last modified by pcpro178
  • 34461A Firmware

    When upgrading to firmware 3.0 there was a power blackout and all firmware seems to be lost. I'm no longer able to access user interface. When switching on the DMM I get a message on screen and the DMM halts...
    last modified by franklin
  • Multimeters 34450A cannot remember settings after restart.

    Hello I have several 34450A multimeters and I have a problem with restoring settings after turning off. I can save and recall settings, but the multimeter is not loading settings after rebooting from memory "Last". I...
    last modified by Miro112

    i'm looking at the U1733 to measure impedance of a shielded twister pair on our shop floor. Will this meter achieve this? Our lab has a TDR for design and development but not practical for lot testing on the productio...
    last modified by mnwire
  • 34401A's failing to power up?

    Hi we have several 34401A's which were working fine prior to being put into (climate controlled) storage for 18 months or so. On retrieving the units and testing them, it was found that a number of them failed to powe...
    last modified by bysteve
  • What is the confidence level for Keysight DMM specifications?

    For example, the Keysight 3458A 90-day DC Voltage accuracy specification for a 1 V nominal reading in 1 V range would be 4.9 uV. When using this accuracy specification in an uncertainty budget one needs to k...
    last modified by JacoEngelbrecht
  • Troubleshooting Overload AAC

    1A range reads Overload AAC, 3A range reads 25mA with no load. 10A  reads fine.
    created by flashover21541
  • Is the USB interface of the U2741A modular multimeter optically isolated to prevent ground loops?

    Is the USB interface of the U2741A modular multimeter optically isolated to prevent ground loops?
    created by e22
  • peak-to-peak is described as cumulative for 34465A but is it really?

    The peak to peak description in the "Compatibility and Differences: 34465A and 34410A..." says it is cumulative in the 34465A model but it does not seem to behave that way. It suggests (and the operating guide uses it...
    last modified by cl2
  • 34461A Taking periodic samples

    Hello,   I would like to take periodic measurements spaced 20 ms apart using the 34461A. I am using previous code I wrote for a 34410A but found the 34461A does not have a sampling:source option so you can ...
    last modified by JasonAG
  • How to use the 2nd display on the 34410A DMM

    This video describes how to setup the 34410A or 34411A Digital Multimeter using the front panel to view the 2nd display. While the main display shows DC Volts, the second display will show you the peak to peak voltage...
    last modified by jdwindrvr
  • Agilent 34401A Digital Multimeter, 6.5 Digit DMM Product Demonstration

    The Agilent 34401A is the industries most popular 6.5 digit digital multimeter. The 34401A is a true multimeter as it offers DCV, ACV, DC and AC current, 2 and 4 wire resistance, frequency, period, diode test and much...
    last modified by tomc