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Dissolved Oxygen Sensor for Oxygen Measurement - SE 706

- Range: pO2 < 1200 mbar
- Detection limit: 6 ppb
- Accuracy: 1 % + 4 ppb
- Flow dependence: ≤ 5 %
- Perm. pressure range: 0.2 - 6 bar absolute
- Perm. temp range: 0 - 80 °C
- Temperature detector: NTC 22 kohms
- ATEX Certificate: II 1/2 GD Ex ia IIC T6/T5/T4/T3

Model Number: SE 706
Data Sheet:

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Product Specification

SE 706 Dissolved Oxygen Sensor

Sensor in robust and hygienic stainless steel design, high accuracy and low detection limit, simple and fast maintenance due to special membrane

Reliable in-line measurement of dissolved oxygen, even under sterile and hygienic conditions. High signal stability. Simple maintenance due to modular design. Special membrane with steel mesh and PTFE coating. Sterilizable, autoclavable and CIP capable. Also suitable for use in hazardous locations.

SE 706 Dissolved Oxygen Sensor Applications
Biotechnology, pharmaceutical industry, fermentation, various fields of analytical chemistry

SE 706 Dissolved Oxygen Sensor Facts
- high level of process safety
- durable materials
- robust design
- easy to clean thanks to extremely smooth surface
- cost-efficient service due to easy-to-replace membrane module and interior body
- hygienic design
- high resolution of 6 ppb
- operation also in hazardous locations
- VP screw cap

SE 706 Dissolved Oxygen Sensor Specifications

Range	pO2 < 1200 mbar
Detection limit	6 ppb
Accuracy	1 % + 4 ppb
Response time at 25°C (air –> N2)	98 % full scale < 90 s
Signal in ambient air	50 … 110 nA
Residual signal in O2-free medium	≤ 0.1 % of signal in ambient air
Flow dependence	≤ 5 %
Perm. pressure range (measurement)	0.2 … 6 bar absolute
Mechanical pressure resistance	max. 12 bar absolute
Perm. temp range (measurement)	0 … 80 °C
Temp range (stability)	-5 … +140 °C (steam sterilizable/autoclavable)
O-ring material	silicone (FDA&USP Class VI tested)
Membrane material	PTFE/silicone/PTFE, FDA compliant (reinforced with steel mesh)
Process-wetted sensor parts	1.4404 stainless steel (material certificate 3.1B)
Surface roughness	N 5 (RA < 0.4 μm)
Temperature detector	NTC 22 kohms
Interior body incl. sensing electrodes	replaceable (ZU 0567)
Process adaptation	Pg 13.5
Sensor cap	VP (VarioPin)
ATEX Certificate	II 1/2 GD Ex ia IIC T6/T5/T4/T3
Certificates	3A, 3.1B (EN 10204)