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Oxygen field monitor EcoLine® Oxi 170

WTW analog oxygen monitor EcoLine® Oxi 170

Excellent price/performance ratio - analog field monitor for the most varied applications in online oxygen measurement

  • User friendly and effective with the 1-key calibration via the OxiCal® procedure
  • Safe operation thanks to the integrated lightning protection and galvanically isolated inputs and outputs
  • Reliable measurements by compressed air compensation and complete sensor monitoring

The EcoLine® Oxi 170 is an economical and metrologically flexible solution for use in the field. Thanks to its integrated lightning protection, the fail rate by secondary lightning effects is minimized. Galvanically isolated inputs and outputs are just as much standard as the complete function monitoring of the monitor and the connected sensor.

A large and easy to read LCD display and the clearly structured menu of the model Oxi 170 show what a user-friendly operating system should look like.

The connected oxygen sensor is continuously monitored for its function. In case of a defective membrane or in case of a used electrolyte, a so-called SensCheck relay is closed, and at the same time, the message is displayed by a symbol on the display.


Model Description Order no.
Oxi 170 - 230 VAC EcoLine® - Oxygen field monitor with 1 power output for oxygen, 230 VAC 281112
Oxi 170 R T - 230 VAC Like the Oxi 170, but with 2 relays and a second power output for temperature 282212

Technical Data

Measuring range 0.0 ... 60.0 mg/l oder 0 ... 600% saturation, selectable, depending on the type of sensor
Resolution 0.1 mg/l or 0.01 mg/l; 1% or 0.1% (depending on the sensor)
Accuracy ±1% of the measured value, ±1 digit
Signal input Low ohms, galvanically isolated
Temperature measurement NTC sensor (integrated in the sensor), -5 °C ... +50 °C; 0.1 K resolution
Temperature compensation Range: -5 °C ... +100 °C
Air pressure correction Range: 500 ... 1100 mbar; manual input
Salinity correction 2.0 ... 70,0
Housing PC/GF20 housing, 7-pin plug connection for sensor, 4 PG screw connections (Ø 10-14 mm) to route the power and signal cables, protection class IP 66
Dimensions 222 x 202 x 105 mm (WxHxD)
Weight approx. 2.2 kg



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