What is the cause of "Laser I" error on the FT660sc?
FT660sc and Laser I Error
The Laser I (Laser Current) Warning indicates the laser current is out of the operating range of 25-75 mAmp.This warning will occur if the magnet becomes detached from the rim of the turbidimeter body. The magnet may be inside the bubble trap or turbidimeter body. It can be re-attached to the rim with super glue. It can be re-ordered using Product # 6015900.