Specifications HI981412 pH Range* 0.00 to 14.00 pH Resolution 0.01 pH Accuracy (@25°C/77°F) ±0.10 pH Calibration user calibration: automatic, one or two-point with buffer solution (4.01, 7.01, 10.01 pH) Process calibration: single point, adjustable (±0.50 pH around measured pH) Temperature Range* -5.0 to 105.0°C (23.0 to 221.0°F) Resolution 0.1°C (0.1°F) Accuracy (@25°C/77°F) ±0.5°C (±0.9°F) Additional Specifications Temperature Compensation automatic Dosing Control Type On/Off control using adjustable set point (4.00 to 10.00 pH) with adjustable hysteresis (0.10 to 1.00 pH) proportional control using adjustable set point (4.00 to 10.00 pH) with adjustable proportional band (0.10 to 2.00 pH) Dosing Control Activation high or low mode operation high set point dosing is activated when reading is higher than set point (dose acid) Low set point dosing is activated when reading is lower than set point (dose base) Delay Start for Dosing startup delay timer at power-on (0 to 600 sec.) Maximum Dosing Time overfeed protection using overtime safety timer (1 to 180 min. or Off) Pump Flow Control selectable flow rate (0.5 to 3.5 L / hour; 0.13 to 0.92 G/hour) manual control for pump priming Alarms high and low with enable / disable option triggered after 5 sec. if controller records a set of consecutive readings over / under threshold values level with enable / disable option overtime protection (1 to 180 min. or off) Intuitive alarm system, using red-yellow-green color-coded backlight Alarm Relay Output (1) SPDT 2.5A / 230 VAC External Event Input input for level controller or flow switch to disable dosing pump in the event of no chemical when using a level controller or no flow when using a flow switch - galvanically isolated Probe Input (1) HI10063 amplified pH/Temperature probe with quick connect DIN connector - galvanically isolated Power Supply 100—240 VAC, 50/60 Hz Power Consumption 15 VA Environment 0-50°C (32-122°F), max. 95% RH non-condensing Dimensions 90 x 142 x 80 mm (3.5 x 5.6 x 1.8”) Weight 910 g (32 oz) Casing wall mounted, built-in pump, IP65 rated Ordering Information HI981412-00 is supplied with HI981412 controller, HI10063 pH/temperature probe, 4.01 pH buffer solution, 20 mL (3), 7.01 pH buffer solution, 20 mL (3), power connection cable, instruction manual and quality certificates for instrument and probe. HI981412-10 (with in-line mounting kit) is supplied with HI981412 controller, HI10063 pH/temperature probe, controller aspiration filter, controller injector, 1/2” thread, saddle for Ø 50 mm pipe (2), PVC aspiration tubing (flexible) (5 m), PE rigid dispensing tubing (5 m), 4.01 pH buffer solution, 20 mL (3), 7.01 pH buffer solution, 20 mL (3), power connection cable, instruction manual and quality certificates for instrument and probe. HI981412-20 (with flow-cell mounting kit) is supplied with HI981412 controller, HI10063 pH/temperature probe, flow cell for HI981412, mounting panel assembly for HI981412, controller aspiration filter, controller injector, 1/2” thread, saddle for Ø 50 mm pipe (3), PVC aspiration tubing (flexible) (5 m), PE rigid dispensing tubing (15 m), barbed tubing adapter 1/2” - 6 mm with racord (2), valves (2), 4.01 pH buffer solution, 20 mL (3), 7.01 pH buffer solution, 20 mL (3), power connection cable, instruction manual and quality certificates for instrument and probe. HI10063 Amplied pH/Temperature Probe The HI981412 uses the HI10063 amplied probe that incorporates both pH and temperature sensors and connects to the controller with a single waterproof Quick Connect DIN connector. The built in amplier helps to reduce electrical noise from recirculation pumps to provide for a stable, reliable measurement. The pH glass used is ideal for low conductivity water and provides for fast response. The PVDF body of the probe has a 1/2” threaded tting for insertion to an in-line “T” tting or the ºow cell. The back end part of the probe has 3/4” NPT threads for submersion/tank mounting. The probe body has a hex tting for tightening snuggly with a wrench. * The range may be limited by the probe’s limits 15 Process Instrumentation 15.34 | www.hannainst.com controllers
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