Myron L - Model 720 Series II - pH/ORP Monitor/Controllers - Operation Manual

warning: all monitor/controllers are factory set to operate on 115 vac. before applying power ensure the input power "115/230 vac" selection is correct for your requirements. failure to do so is beyond the responsibility of the myron l company. see section ii.e.2. and figure ii.e.1. warning: ensure power is off while installing electrical equipment. if monitor/controller is installed, ensure the power is off before servicing. failure to do so could cause damage to the instrument, and could be harmful or fatal to personnel. only qualified personnel should install or service electrical equipment.