Analog oxygen sensors TriOxmatic@ 690-7 WTW Germany

Electro-chemical sensor to measure dissolved oxygen
The TriOxmatic® with 3 electrode system for the reliable oxygen measurement - patented know-how at low investment costs:
•Reliable operation by proven technology
•No run in, no drift: Stable measured values from the beginning to the end
•Self diagnosis system SensReg/SensLeck by 3 electrode system
In the analog sensors of the TriOxmatic® series, you will find the ideal solution for your application. In addition to the continuous measuring accuracy, the sensors are equipped with an automatic self diagnosis system, a shorter response time and different cable lengths as options. Regardless of this, all models are supplied with accessories kits and can be connected to the monitor Oxi 298 (exception: TriOxmatic® 700).

TriOxmatic® 700 – predestined for the use in biological cleaning steps (wastewater treatment plants)
Universal oxygen sensor with high measuring accuracy and automatic self diagnosis SensReg (electrolyte consumption) and SensLeck (membrane monitoring). Based on its median response time of t90 < 180 s, the sensor is insensitive to air bubbles and therefore predestined for measurement and regulation of the oxygen content in biological cleaning steps of wastewater treatment plants. The TriOxmatic® 700 is alwo available as a salt water version.
Nur noch als Nachrüstarmatur für analoge Umformer der Serien Ecoline® und QuadroLine®. Als digitale Version weiterhin erhältlich (IQ SENSOR NET System 181).

TriOxmatic® 690 – suitable for pure measuring tasks in wastewater/water
Very economic model without self diagnosis. This makes this oxygen sensor suitable especially for pure measuring tasks in wastewater/water where a continuous membrane and electrolyte monitoring is not necessary.

TriOxmatic® 701 – increased resolution for the residual oxygen in the denitrification
Based on the increased resolution, a shorter response time (t90 < 30 s) and the thinner special membrane, this sensor can be used for quicker response processes with lower O2 concentrations (e.g. for the measurement of residual oxygen and the denitrification).

Specification :

Model		TriOxmatic® 690	TriOxmatic® 701
Order No.		201690, 201692, 201693V	201678, 201680, 201682V
Measuring principle		Electrochemical
Measuring Range (25 °C, depends on respective controller)
	O2 Concentration	0.0 ... 60.0 mg/l	0.00 ... 20.00 mg/l; 0.0 ... 60.0 mg/l
	O2 Saturation	0 ... 600 %	0.0 ... 200.0 %; 0 ... 600 %
Resolution	O2 Concentration	0.1 mg/l	0.01 mg/l; 0.1 mg/l
	O2 Saturation	1 %	0.1 %; 1 %
Response time at 25 °C		t90: 180 s	t90: 30 s; t99: 90 s
Minimum flow rate		0.05 m/s	0.23 m/s
SensCheck		–	SensLeck, SensReg
Temperature Measurement		Integrated NTC, -5 °C ... +50 °C
Temperature Compensation		0 °C ... +50 °C
Pressure Resistance		Maximum 10 bar
Ambient Conditions		Operational temperature: 0 °C ... +50 °C; Storage Temperature: -5 °C ... +50 °C
Electrical Connection		Integrated connection cable with 7-pole screw plug (IP 65); electrical supply via WTW controller
Electromagnetic Compatibility		According to EN 61326 class B and FCC class A
Certifications		CE, cUL, UL
Mechanical	Membrane/ sensor head, Protection hood	POM
	Housing shaft	Stainless steel 1.4571
	Protection Rating	IP 68
	Cable	PUR	PU
Weight (without cable)		Approx. 660 g
Warranty		2 years on defects in quality according to § 10 terms of conditions