Can I use a metric probe with an English control cable?

It is not a good idea to use an English probe with a metric cable (or vice versa). You will introduce errors and lots of complications. Here’s a suggestion of how you can switch over those installations from English to metric:

1. Rent an English Digitilt system and take a final survey of the inclinometer installations with the English system.
2. On the same day that you take the final English readings, take two or three surveys of the same installations with your metric system.
3. Reduce the English data, evaluate the displacements and file all the readings from the past. This closes the book on the English unit data.
4. From now on, use only your metric system. Choose one of your metric datasets and use it as the initial. If you must report information in English units, use DigiPro for Windows to generate English unit graphs and data from your metric readings.