Chapter 8. Maintenance and Troubleshooting
146 Model PM880 Portable Hygrometer User’s Manual
8.8.2b Downloading User Program Upgrades
Note: You can also use Infrared Transfer Application (My Computer\
Infrared Recipient) to download files.
1. Using your PC, open Windows Explorer.
2. Go to the folder where the upgrade files are stored.
3. Highlight the desired file(s) by clicking once. The software upgrade
includes the bootloader and instrument software, and the meter and
Help string files.
4. Right click on the file(s).
5. Be sure the infrared sensor on the meter has a clear path to the infrared
adapter on the PC.
6. Select Send To  Infrared Recipient or Nearby Computer (or
QuickBeam if QuickBeam has been installed)
7. The computer will display a window showing the status of the file
upload.
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