pH Indicators/Controllers/Transmitters

pH Indicators/Controllers/Transmitters


Instronix India offers a wide range of pH Indicators/Controllers/Transmitters. These are panel mounted DIN size with 3.5 digit display. Founded in the year 1978 with a view to provide complete solution to process control applications, the company offers a wide range of process control instruments, and digital process control equipment for industrial use. These products are used in various industries for indication, monitoring and control of parameters like temperature, time, counting, RPM, humidity, pH, conductivity, ORP etc. Various industries where these products find wide applications include cement, sugar, fertilizer, pharmaceuticals, chemicals and pollution control industries.

  • Display – (100 - pH) 3.5 digit LCD 12.5 mm display, (110- pH) LED display
  • Range – 0.00-14.00 pH
  • Accuracy – ±0.5% ±1 digit
  • Temperature compensation – 0-100°C with PT 100 sensor
  • Set limits – 0-14.00 pH for acid and base
  • Control logic – acid – pH > set limit, acid relay on
  • Base – pH < set limit, base relay on
  • Input impedance – > 1012 ?
  • Relay output – 110 V/220 V AC @ 5 A (except consent contact)
  • Transmitter output – 4-20 mA isolated
  • Consent contact – on when pH within acid and base limits
  • Calibration – standard pH 7: 7±1, slope pH 4: 4±1
  • Alarm logic – alarm limit relay – on when – pH >acid alarm or pH < base alarm
  • Alarm limits – 0-14.00 pH for acid and base
  • Front panel controls – single touch switch to select sequentially the LCD display indication (A) pH normal, (B) acid set limit, (C) acid alarm limit, (D) base set limit and (E) base alarm limit
  • In case the equipment is left unattended or any position other than normal, it automatically reverts to normal after 30 seconds
  • Supply – 110 V AC/220 V AC ±10%
  • Dimensions – front facia 96 x 96 mm
  • Cut out – 92 x 92 mm
  • Weight – 1000 gm.

  • Indicate pH when attached to pH electrode
  • The membrane key pad indicates pH limits for acid/base together with additional alarm limits for acid/base
  • Consent contact output is provided to be used in conjunction with an ORP controller for ORP dosage
  • Provide an isolated 4-20 mA output for recorder purpose.

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