The Fluke 1735 Power Logger (COM31) driver helps Windows recognize the logger’s communication interface so compatible software can connect to it. This connection supports transferring recorded measurements for review and analysis. Before downloading, confirm that the package matches your hardware and your version of Windows 11, 10, 8, or 7.

Key Features

• Device communication: Provides the driver support needed for compatible logging software to communicate with the connected power logger.
• COM port access: Allows applications that use serial communication to select the logger’s assigned port. COM31 is the port shown in this device name, but Windows may assign a different number after installation or when the connection changes.
• Measurement transfer support: Helps establish the connection used to retrieve stored readings through compatible software; the driver itself does not display or analyze electrical measurements.
• Windows device identification: Enables Windows to associate the communication interface with the appropriate driver, making it easier to check connection status in Device Manager.

How to Install

1. Check the download requirements. Confirm that the driver is intended for the Fluke 1735 Power Logger and supports your Windows edition and system architecture. If the download listing identifies the vendor as Fluke Networks, also verify the supported hardware in the package documentation.

1. Prepare the connection. Use the appropriate communication cable or adapter for your logger. Follow the package instructions on whether to connect the device before installation or wait until prompted.

1. Install the driver. Extract the downloaded archive if necessary, then run the supplied installer with administrator permission. If the package contains only driver files, open Device Manager, locate the relevant device, choose Update driver, and browse to the extracted folder.

1. Confirm recognition. Connect and power on the logger as directed. In Device Manager, check for warning icons and note the assigned COM port, which may appear under Ports (COM & LPT).

1. Test the software connection. Open your compatible Fluke measurement software and select the port shown in Device Manager, such as COM31. Attempt a connection or a small data transfer. If the logger is not detected, check the cable, port selection, and any separate driver required by a communication adapter.

Common Issues and Fixes

• Driver install fails or no COM port appears: Disconnect the Fluke 1735, run the Fluke Power Log/USB serial driver installer as administrator, reboot, then reconnect. Do not substitute a generic USB-serial driver; use the Fluke-supplied driver for the logger’s USB interface.
• Device not detected / COM31 missing: Confirm the 1735 is powered and using a known-good USB cable. In Device Manager, check Ports (COM & LPT) for an unknown device or yellow warning. Point the driver update to the Fluke driver folder, then rescan.
• Version conflicts or wrong COM assignment: Uninstall older Fluke USB serial drivers and Power Log versions before installing the current release. If COM31 is held by a stale device, show hidden devices, remove old COM entries, and verify COM31 in Power Log.