德国Knick SE 707 溶解氧传感器 - SE 707

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高分辨率测量低氧浓度，在环境空气中简单、高效、低成本地校准传感器。无校准气体。在有高CO2分压的环境下也能保持高信号稳定性。材料符合FDA要求，具有极光滑的抛光表面。模块式设计简化了维护工作。可灭菌、可加压加热、CIP兼容。也适用于危险区域。

一、SE 707溶解氧传感器描述：

SE 707 溶解氧传感器在灭菌和卫生条件下也能可靠地测量微量氧；信号稳定，结实耐用。

二、SE 707 溶解氧传感器应用
饮料罐装（如牛奶、啤酒）。锅炉给水中的测量（检测限值1 ppb）

三、SE 707 溶解氧传感器技术参数

Range	pO 2 < 1200 mbar
Detection limit	1 ppb (3 ppb in liquids containing CO 2 )
Accuracy	1 % + 1 ppb (1 % + 3 ppb in liquids containing CO 2 )
Response time at 25 °C (air –> N 2 )	98 % full scale < 90 s
Signal in ambient air	290 … 500 nA
Residual signal	in O 2 -free medium: ≤ 0.01 % of signal in ambient air in CO 2 : ≤ 0.03 % 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 … +121 °C (steam sterilizable/autoclavable)
O-ring material	silicone (FDA&USP Class VI tested)
Membrane material	PTFE/silicone/PTFE, FDA comp. (reinforced w. 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 0568)
Sensor cap	VP (VarioPin)
ATEX Certificate	II 1/2 GD Ex ia IIC T6 / T5 / T4 / T3
Certificates	3A, 3.1B (EN 10204/3.1.B)