Hayward HCC 2000 Controller Package HCC-2000-Automated-Controller-Owners-Manua - Page 21

pH or ORP readings are inconsistent or slow in response. 1. Ensure that sensor cables are properly connected to their respective BNC connectors on the controller unit. 2. Clean the sensors as outlined in the maintenance section. If sensors continue to provide unstable readings after cleaning, replace sensors. 3. Check to ensure that all electrical equipment in the facility pump room is properly bonded. pH or ORP chemical feeder runs continuously. 1. Make sure "auto" feed mode is selected. 2. Ensure that chemical feeders are properly connected to their respective connectors on the controller unit. pH or ORP feeding overshoots the setpoint. 1. Ensure that each chemical feeder is properly sized. 2. Check concentration of sanitizer or pH chemical. pH or ORP feeding does not reach the setpoint. 1. Ensure that each chemical feeder is properly sized. 2. Check concentration of sanitizer or pH chemical. 3. Check chemical feeders and injection points for proper operation. pH/ORP feed has switched to OFF automatically. 1. Check pH/ORP Overfeed times, which switch the controller to OFF when times are reached. 2. Ensure that acid/base feed mode is properly set for your chemical feeding requirements. 3. Make sure chemical feeder tubing is clear, and ensure tanks have adequate chemicals. Technical Specifications Display Range: pH ORP 0.0 - 9.9 100 - 995 mV Setpoint Range: pH ORP 7.0 - 8.0 525 - 995 mV Default Settings: pH ORP 7.5 650 mV Calibration Range: pH 2.0 pH +/- Control Accuracy: pH ORP 0.1 pH 5.0 mV Mode Selections: pH Feed ORP Feed pH Selection pH Mode ORP Mode Auto/Off/Manual Auto/Off/Manual Acid/Base Auto/Set/Calibrate Auto/Set 20 USE ONLY HAYWARD GENUINE REPLACEMENT PARTS