CM442 Firmware Update Overview
CM442 transmitter supports compatibility with new electrodes by manually updating firmware, such as free chlorine electrode CCS51D or ozone electrode CCS58D. The update process is simple, but you need to prepare an SD card in advance and insert it into the CM442. This tutorial is based on the official Endress+Hauser video to help you quickly complete the firmware upgrade.
Preparation Before Update
Required Tools and Materials
- SD card (formatted as FAT32 and containing the latest firmware file)
- CM442 transmitter
- Power connection (ensure the transmitter is powered on)
Precautions
- Do not power off during the update, otherwise it may cause equipment damage.
- Ensure the firmware file on the SD card matches the CM442 model.
- It is recommended to record current parameter settings before updating to prevent loss.
Firmware Update Steps
Operation Process
- Insert the prepared SD card into the SD card slot of the CM442.
- Enter the CM442 menu and find the firmware update option.
- Select to read the firmware file from the SD card and confirm the update.
- Wait for the update to complete; do not disconnect power or remove the SD card during this period.
- After the update is complete, restart the transmitter and check if the firmware version has been updated successfully.
FAQ and Support
Compatibility Description
| Electrode Model | Required Firmware Version |
|---|---|
| CCS51D (Free Chlorine) | V1.02 or higher |
| CCS58D (Ozone) | V1.03 or higher |
If the electrode still cannot be recognized after the update, check if the firmware version matches, or contact Endress+Hauser technical support.
The video tutorial is from the official Endress+Hauser YouTube channel, providing detailed operation demonstrations.