• TCH Pro 202: Quick Start Guide

• TCH Pro 203: Quick Start Guide

• TCH Pro 202 & 203: User Manual

• Windows Firmware Update Tool

TCH Pro 202 and 203: Firmware Upgrade Procedure:

1. Download and uncompress the latest firmware for your unit
2. Press and hold Power button
3. Press Reset button with a paper clip. For button location, see Quick Start Guide.
4. Release Power Button. You should now see the Firmware Upgrade Screen. If you do not see this screen, press Power and Reset buttons simultaneously again.
5. Connect Particle Analyzer to PC with USB cable
6. Open Windows Firmware Update Tool and follow on-screen instructions
7. Power button is disabled in upgrade mode. To restart the unit without upgrading, press Reset button.

TCH Pro 202 – v1.16

• Latest release for Bootloader v2.0
• Added runtime log
• Added support for extra calibration parameters
• Modified pump operation for repeated sampling
• Upgraded USB libraries
• Minor bug fixes

TCH Pro 203 – v1.26

• Latest release for Bootloader v3.2
• Minor bug fixes for routines during sleep mode (unit off)