The CS 50001 has an LCD screen that can cycle through dozens of parameters. The manual explains each code:
Using the optical button (or magnetic reed switch), you can navigate menus. The manual provides the button-press sequences (e.g., short press to scroll, long press to enter).
WARNING: Avoid "free manual download" sites that require registration or credit card information. The Sagemcom CS 50001 manual is a free, public document.
A: The meter typically has an LED pulse output (1000 imp/kWh) and an optional open-collector transistor output. The manual provides the pulse constant calculation formula for connecting to remote totalizers.
A: No. The manual clearly states that cumulative energy registers (total kWh) are non-resettable to prevent fraud. However, demand registers (Pmax) can be reset via software command.