Hanna HI9935-2 Industrial Grade pH and TDS Controller with Proportional Fertilizer Dosing

pH-mV Range : 0.00 to 14.00 pH
pH-mV Resolution: 0.01 pH
pH Range: ±0.02 pH
pH Calibration: through “OFFSET” and “SLOPE” trimmers
pH Input impedence : 10¹² Ohm
pH Dosing Set Point: from 4.0 to 7.0 pH
pH Proportional Band: two independent controls: pH from 0.0 to 2.0
TDS Range: 0 to 1999 ppm (mg/L)
TDS Resolution: 1 ppm (mg/L)
TDS Accuracy: ±2% f.s
TDS Calibration: through “ZERO CAL” and “SLOPE CAL” trimmers
EC/TDS Temperature Compensation: automatic, 0 to 50°C (32 to 122°F) with β = 2%/°C
EC to TDS Conversion Factor: 0.65 mg/L (ppm) = 1 µS/cm
EC/TDS Dosing Set Point : from 900 to 1800 ppm (mg/L)
EC/TDS Proportional Band: TDS from 0 to 400 ppm and time cycle from 0 to 90 seconds
General Meter
pH Electrode : any combination pH electrode with a universal BNC connector (not included)
EC/TDS Probe : Hanna TDS four-ring potentiometric probe with built-in temperature sensor and DIN connector (not included)
Process Control Meter
Enclosure : Fiber-reinforced, self-extinguishing ABS
Alarm Contact : Terminals can be configured as normally open or normally closed (isolated output Max. 2A, Max. 240V, resistive load, 1,000,000 strokes). The alarm is activated if pH falls below the setpoint by the userselectable interval (0 to 2 pH),or TDS exceeds the se
Proportional Control : Two independent controls: pH from 0.0 to 2.0 and TDS from 0.0 to 400 ppm (mg/L) with two separate time cycles from 0 to 90 seconds
Set Point : From 4.0 to 7.0 pH and 900 to 1800 ppm (mg/L)
Power Supply: 110/115V at 50/60H
Environment: -10 to 50°C (14 to 122°F) max. 95% RH non-condensing
Dimensions: 221 x 181 x 86 mm (8.7 x 7.1 x 3.4’’)
Weight: 1.6 Kg (3.5 lb.)

  • Quality Engagement
  • Easy change and return
  • Delivery Avaliable
  • Favorable payment