TOUGH M6M Dissolved Oxygen Analyser TOUGH M6M Dissolved Oxygen Analyser - Open enclosure TOUGH M6M Dissolved Oxygen Analyser TOUGH M6M Dissolved Oxygen System TOUGH M6M Dissolved Oxygen Sensor
TOUGH M6M Dissolved Oxygen Analyser

TOUGH M6M Dissolved Oxygen System – Inline


Forget everything you ever thought you knew about membrane technology. The TOUGH M6M Dissolved Oxygen system is amperometric membrane technology at its best and has proven itself over almost 3 decades in the toughest mining conditions on the planet.

  • Long sensor life – Ultra Tough sensors last up to 20 years in clean applications and 5 years in harsh mining slurries
  • Long-term continuous in-tank submersion
  • 0 to 40ppm 
  • Extra-long calibration stability – 3 to 4 months
  • Calibrates easily in the air – No zero solutions
  • Low maintenance – Most applications require only annual maintenance


TOUGH M6M Dissolved Oxygen Inline System

When it comes to TOUGH, nothing surpasses the Turtle Tough M6M Dissolved Oxygen Sensor. For almost 30 years this unit has been used worldwide throughout the mining community, renowned for its extreme durability and low maintenance in some of the world’s harshest conditions. Utilising a Teflon membrane draws many sceptics, tainted by their experience with cheap membrane technology that drifts, is unrepeatable and fails due to tears and ruptures of the membrane that ultimately contaminate and destroy the sensor.

The TOUGH M6M Dissolved Oxygen Inline System couldn’t be more different. This German-made technology sets a new benchmark in membrane technology. The Ultra Tough Teflon membranes are resilient to highly abrasive slurries and maintain excellent repeatability and accuracy. The membrane only requires replacement annually at the recommended service interval. Calibration stability is an astounding 3-4 months and the units simply calibrate in the air, without any need for zero solutions.

The sensor has an extremely fast response, which is critical for applications that demand accuracy or measure at high ppm. Operators rarely allow the required time for stabilisation, so the fast response of the sensor means less human error and high accuracy. The standard unit is capable of 0-40ppm. 


Product name TOUGH M6M Dissolved Oxygen Inline System
Part number TOUGH-M6M-DO
O2-Measuring range 0.0 – 40.0 ppm Dissolved Oxygen / 0 - 400%
O2-Accuracy ± 0.5 % of the full-scale point
°C-Measuring range 0.0 – 50.0 °C
°C-Accuracy ± 0.1°C, Automatic Temperature Compensation
Recorder outputs 2 simultaneous
O2 : 0.0 – 40.0 ppm / 0 - 400 mV
°C: 0.0 – 50.0 °C / 0 - 500 mV
Power supply 240 V AC / 50/60 Hz - 2 VA Battery with integrated charger
Burden > 100 KΩ
Fuse 0.3 A
Display Display 13 mm high, 3-1/2-digit LCD
Sensor All active and passive Turtle Tough Dissolved Oxygen sensors
Calibration Air calibration in the atmosphere
Housing IP65, PVC housing
Dimensions 200mm x 270mm x 250mm (H x W x D) approx 
Weight  2.3 kg approx 
Field case 385 x 355 x 180 mm (H x W x D) approx. Weight 1.5 kg approx.


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Interface Hardware

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