The updating of embedded software should only be performed after given specific instructions to do so from Technical Support or a Fluke Calibration Authorized Service Center.

If the update isn't performed properly, your product may be inoperable until it is.

The below procedure updates the main firmware. Updating the PCM (Pressure Control Module) firmware is not possible by the RS-232 serial port on the rear panel of the 6270A. PCM firmware update is possible by the USB firmware method (link to that web page is above). It is also possible if you have a PMM Calibration Kit (KIT-PMM-CAL-20M, KIT-PMM-CAL-40M or KIT-PMM-CAL-100M). If so, contact Fluke Calibration Pressure Technical Support for instructions.

Extract the two files to a location on your computer:

• 6270A_###.img firmware file (### is the version number)
• Download7.exe (version 2.0)

Note: If the CPU does not have any firmware on it then if must be flashed by the USB port method to be later updated by the serial RS-232 port method.

Connect a null modem RS-232 serial cable (pins 2 and 3 are crossed) to the back panel RS-232 connector on the 6270A and to the computer.

In the 6270A menu path: ?Setup?, ?Instrument Setup?, ?Remote Port?, ?RS-232 port?, ensure that the COM settings are Data Bits 8, Stop Bits 1, Flow Control None, Parity None, Baud 9600, EOL CRLF, Remote IF Terminal.

Open the Download7.exe software, choose the COM port on the computer in the drop-down list, and verify the COM port settings. Leave the “Fast” checkbox checked. Then click the [OK] button in the Download7 software.

Select the 6270A_###.img firmware file (### is the version number). Double-click it, or select it and press the [Open] button. The update will initialize and then run to completion.

When complete, turn off the 6270A controller by the main power switch on the back panel. Leave it off for one minute then turn it back on.

Wait for the controller to completely power up to the main screen, then go to the ?Setup?, ?Instrument Setup?, ?About This Instrument? screen and verify that "Revision" is correct. Press ?Exit? to return to the main screen.

More detailed instructions are in the 6270A Service Manual and on our Online Help Center.

Main Version 1.06 (2018 March 21)
Add: (OMA-589) Change message text to red when door is opened, “Please wait until done venting”

Fix: (OMA-623) Make LED on CPS brighter when the CPS is enabled and active