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Analog pH monitor QuadroLine® pH 296

WTW analog pH monitor QuadroLine® pH 296

The analog pH monitor for control panel installation is convincing by flexibility, reliability and a user-friendly interface

  • Low and high ohm pH input to connect also external sensors
  • Reliable measurements by automatic temperature compensation with NTC, Pt100 or Pt1000
  • User-friendly operation by different calibration procedures

The large LCD display on the QuadroLine® pH 296 as well as its clearly structured keyboard, consisting of 2 operating and 4 functional keys, make up the control panel. In addition to a dual numerical measured value display (pH/ORP and temperature), the user will also be able to see additional important operating conditions and status messages. Furthermore, the alphanumerical display is used to guide the user during the configuration and parameterization of the meter.

The 2 optional relay outputs can be configured individually as alarm, limit values or regulating contact. Depending on the selected operating mode, you can make further entries in the submenu, such as the selection of the measuring parameter, the upper/lower limit value, the regulating algorithm and the regulating range to be set. As an IF proportional regulator, the monitor can be connected directly into the process regulating circuits.


Model Description Order no.
pH 296 - 230 VAC QuadroLine® - pH/mV control panel monitor with 1 power output for ph/ORP, 230 VAC 191112
pH 296 R T - 230 VAC Like the pH 296, but with 2 relays and a second power output for temperature 192212

Technical Data

pH measurements ORP measurements T measurements
Measuring range 0,00 ... 14.00 pH -1500 mV ... +1500 mV NTC: -5 °C ... 100 °C
Pt 100/Pt 1000: -20 °C ... 130 °C
Resolution 0.01 pH 1 mV 0.1 K
Accuracy ± 0.01 pH ± 2 mV NTC: ± 0.2 K
Pt 100/Pt 1000: ± 0.1 K
Signal input Low ohms or
high ohms
Low ohms or
high ohms
2-conductor NTC, Pt 100/Pt 1000
3-conductor (Pt 100/Pt 1000)
Temperature compensation NTC:-5 °C ... +100 °C
Pt 100/Pt 1000: - 20 °C … +130 °C
_H _H
Housing Glass fiber reinforced Noryl housing with keyboard film on the front panel made of polyester, protective class IP 54 (front) _H _H
Dimensions 96 x 96 x 168 mm (WxHxD) _H _H
Weight approx. 1 kg _H _H



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