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Firmware revision updates:

- Keysight rebranding, change identity to Keysight and Keysight Logo

- Fix incorrect temperature dual display in fahrenheit

- Fix incorrect analog bargraph indication

- Fix incorrect ACuA level compensation at 20 kHZ and above

- Fix incorrect MAXMIN display, when changing from AC to DC mode, or vice versa

- Fix incorrect MAXMIN display, when changing from LOCK range to AUTO range, or vice versa

- Fix incorrect AUTO HOLD display at HZ measurement

- Fix incorrect range changes in AUTO HOLD

- Fix for MAXMIN feature to restart, when changing from LOCK range to AUTO range, or vice versa

- Fix display update rate

- Fix incorrect LOG view in setup mode setting

- Fix incorrect APO mode when PEAK HOLD is enabled

- Fix incorrect LOG view range display in PERCmA

- Fix incorrect OL flag check for mS, add variable pulse width range and one duty range

How to Install:

- Connect the multimeter to your PC via the U1173B IR-USB connectivity cable and turn on the multimeter.

- Go to Start > All Programs > Keysight Technologies > Keysight U1253B Firmware Update > Keysight U1253B Firmware Update Software (Version 3.04).

- Click "Auto Search COM Port" button to search and detect the unit. The model number, serial number and current firmware version of the multimeter will be displayed in the "Model Number", "Serial Number" and "Current Version" field.

- Make sure the instrument is in connected status before you start firmware update. Click “Upload Firmware” to start firmware update.

- The multimeter will reset and recover itself after the firmware update.

About Device Firmware:

Applying a newer firmware version than the one already installed on your unit can bring various enhancements, include workarounds for diverse problems encountered by the device, and improve or add newly developed features.

On the other hand, downgrading the firmware version can recover the device’s functionality in the event of a software update either turning up faulty or causing the unit’s overall performance to drop. However, bear in mind that applying an older firmware isn’t recommended and might not always be possible.

When it comes to the update steps, due to the large variety of devices and numerous ways for installing a new firmware, it is recommended that you carefully read and understand the upgrade steps, and consider applying a different firmware only when you have familiarized yourself with the update method.

As the installation process is most of the times quite risky, this step should be taken by users that have the ability to successfully complete the update; regular users may initiate it at their own risk. Moreover, it’s best that this task be performed in a steady power environment such as the one ensured by a UPS unit.

Therefore, if you consider applying this release, hit the download button, take into account all the aforementioned aspects, and update the device’s firmware. Also make sure you constantly check with our website to ensure that you don’t miss a single new release.

It is highly recommended to always use the most recent driver version available

Do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games

Try to set a system restore point before installing a device driver

This will help if you installed a wrong driver

Problems can arise when your hardware device is too old or not supported any longer

Keysight U1253B Firmware U1253B Digital Multimeter Firmware U1253B Handheld Digital Multimeter Firmware