What to do if my CATH-TECH Hexcorder Pro Measuring Instruments unit won't take readings?
- TTim NelsonSep 10, 2025
If your CATH-TECH Measuring Instruments unit won’t take readings, try the following: 1. Switch the half cell poles to address a potentially bad switch. 2. Switch the half cell cables to address a potentially broken cable. 3. Check for manual survey mode.

