alpha-pH800 1/4 DIN pH/ORP Controller

• User-Customization through Advanced Setup Menu offers flexibility in matching the controller’s function to suit individual’s specific requirement 
• Automatic Calibration with Auto-Buffer Recognition eliminates mistakes during calibration 
• Symmetrical Mode Operation eliminates electronic noise problems when used with solution ground 
• One-Point Online Calibration without shutting down the line 
• Hold Relay for use with float switches/flow switches and other controllers as a failsafe function 
• 0 to 2000 Second Time Delay Adjustment on control and alarm delays 
• Two Galvanically Isolated Scaleable 0-20/4-20 mA Outputs for pH/ORP and temperature 
• Hysteresis Band Protection against rapid control switching of relays from wear and tear 
• Non-Volatile Memory retains all stored parameters and calibration data even if power fails 
• Large Dual Display shows pH (or ORP) with temperature simultaneously-features clear multiple icons, set points, and status messages 
• Choice of Temperature Sensor Pt100/Pt1000 with 2-wire or 3-wire temperature input selection 
• Easy Installation and Wiring with detachable plug-in connectors