Front with cover removed Rear Specifications BL131 • BL 132 pH Range 0.00 to 14.00 pH* Resolution 0.01 pH Accuracy ±0.05 pH (@25 °C / 77 °F) mV (ORP) Range ±2000 mV Resolution 1 mV Accuracy ±5 mV (@25 °C / 77 °F) Temperature Range -5.0 to 105.0 ºC (23.0 to 221.0 °F)* Resolution 0.1 °C / 0.1 °F Accuracy ±1.0 °C /±1.8 °F (@25 °C / 77 °F) Air Temperature Range –30.0 to 80.0 °C (–22.0 to 176.0 °F)* Resolution 0.1 °C / 0.1 °F Accuracy ± 0.5°C Calibration pH buffer • automatic • two points (4.01 pH, 7.01 pH, 10.01 pH) pH process • adjustable, single point ORP (mV) • adjustable, single point Temperature compensation • Automatic temperature compensation for pH • Range –5.0 to 105.0 °C (23.0 to 221.0 °F) pH controller • Delay to start at power-on • Proportional feed using adjustable set point and adjustable proportional band • Overdose protection using the overfeed timer ORP controller • Delay to start at power-on • Proportional feed using adjustable set point and adjustable proportional band • Overdose protection using the overfeed timer • pH regulator interlocked Alarms • High and Low with enable / disable option for all parameters • Alarm is triggered after a user-specified time Internal pump control • 0.5 to 3.5 L/h (0.13 to 0.92 gal/h) pump flow control • 1 atm (14 psi) maximum output pressure • Manual control for each pump • Magnetic faceplate triggers Hold status when removed (covers internal moving pumps) • Replaceable peristaltic pumps External dosing pump • Relay outputs for external dosing pumps Pool startup mode Simplified pool startup procedure • Ensures 12 hour dosing to reach a target setpoint • Enabled or disabled manually from the controller menu • Disabled automatically when setpoint is reached or 12 hour timeout has expired 15 Process Instrumentation 15.18 | www.hannainst.com controllers
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