Hioki PW3390 Use and care manual

June 30, 2017
PW3390 Firmware Update Procedures
HIOKI E.E. CORPORATION
1. Copy the firmware update file (pw3390.ver) to the root directory of a CF card or USB memory stick on a PC.
2. Turn on the PW3390 and insert the CF card or USB memory stick in which the firmware update file was
copied.
The settings will be initialized after the firmware update, so we recommend saving the settings
before the update.
3. Press [FILE] key, so that the file list is displayed.
In case of using a USB memory stick, press either left or right key of PAGE to display the file list in the USB
memory stick.
Figure 1.File list screen (1)
4. Press [Next](F6 key), so that the file list screen will be changed as in below.
Figure 2.File list screen (2)

5. Press [Update](F4 key), so that the following screen with a confirmation message appears.
Figure 3.Update confirmation screen
6. Press [ENTER] key, so that the update is started, and LEDs of [MEAS], [SYSTEM], [FILE], [HOLD],
[SHIFT], [AUTO(U/I)] and [START/STOP] keys are lit.
Do not turn off the power while LEDs are lit.
If the update is failed, the unit shall be sent to HIOKI to repair and adjust.
Figure 4.Update message screen
7. Update is completed in about 1 minute, and LEDs will be turned off.
Remove the CF card or USB memory stick, and turn off and on the power again.
“BACKUP ERROR system Initialized.” Appears when rebooting, but this is the correct action after the
firmware update. The message will be changed to “BACKUP PASS” from next time.
8. Confirm the version number in the setting screen by pressing [SYSTEM] key when the measurement screen
is displayed.