E8500 Instruction & Operations Manual
version 1.010
Page 44 of 45
APPENDIX B
FIRMWARE PROGRAMMING
On occasion it may be necessary to update the internal software of the analyzer, also
known as the firmware. The firmware can be updated in the field with the use of a
computer connected to the E8500 analyzer. Firmware updates can be requested from
the factory. The current firmware version is displayed on the second status screen.
Updating the firmware
1. Open the drawer of the analyzer and locate the programming switches on the
right edge of the PC board. There are 2 miniature slide switches on a black
block.
2. Connect communications between the E8500 and the computer. Run the
firmware update. The program will backup the analyzer’s settings.
3. When prompted, toggle the switches on. The firmware will now be
reprogrammed. This will take 2 to 3 minutes.
4. When prompted, toggle all the switches off and replace the batteries and cover.
The analyzer’s settings will be restored.
5. Autozero the analyzer. Check the span calibration of all sensors.
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