The program provided below is to update the version of digital multimeter 7481 and 7482 to D04.

To update your digital multimeter, you need a personal computer to run this program and a USB cable.
The applicable OS is Windows 10 or later.

Update your optical power meter according to the update procedure.

7482/7482
　update748X.zip　[3.93MB]

The program provided below is to update the optical power meters of old versions. Before updating your power meter, please check the version according to the following procedure.

8250A firmware latest version: C00
8230/8230E firmware latest version: D01

Power on the power meter. Check the version displayed at the position enclosed in a red frame as shwon below.

Example of the 8250A


Example of the 8230/8230E

To upgrade your optical power meter, you need a personal computer to run this software and a USB cable.
The applicable OS is Windows 98SE or later (32 bit only).

Update your optical power meter according to the update procedure.

8250A
　update8250A.zip　[2.2MB]

8230/8230E
　update8230.zip　[9.6MB]