青岛光学溶解氧电极VisiPro DO 225,青岛光学溶解氧电极价格

青岛光学溶解氧电极-VisiPro DO 225-瑞士Hamilton

货号：243421

全球第一根有防爆认证的光学溶解氧氧电极

VisiPro DO是唯一的能够用于防爆区域的光学溶解氧电极。

VisiPro DO光学测量原理改善了测量的性能，，简化了维护的程序。改善性能是相对于传统的电化学（电流法）电极，，不受流速的影响，，快速启动无需极化时间，，维护十分简单。

内置变送器，，VisiPro DO电极可以直接和过程控制系统通过4~20毫安信号或者数字信号HART相连接。所有相关的数据，，包括校准信息，，诊断信息等都储存在电极头中简化了校准和维护的程序，，附加的无线通讯功能可以使电极直接和你的电脑相连接，，简化了实验室校准、设置和维护程序。

为什么选择VisiPro DO Ex？

简化了校准和维护程序:

Specifications

Measurement Principle	Oxygen dependent luminescence quenching
Measuring Range	4 ppb to 25 ppm (DO) or 0.1 to 600 mbar (pO2)
Oxygen Consumption	None
Required Flow	None
Response Time t98%	< 30 s at 25 °C, from air to nitrogen
Temperature Sensor	NTC 22 kOhm
Drift at Room Temp. under Constant Conditions	< 1 % per week
Configurable Values	DO: mbar; %-sat; %-vol; μg/l; mg/l; ppb/ppm (gas); ppb/ppm (dissolved oxygen); Temperature: °C
Autoclavable	No
CIP	Yes
Steam Sterilizable	Yes, max. temperature 140°C
Process Temperature	-20 to 140 °C; the Sensor provides no DO reading above 85 °C
Pressure Range	0 to 12 bar
O-ring Material	EPDM (FDA approved)
Surface Quality of Steel	Ra < 0.4 μm (N5)
Protection Rating	IP 68
Certificate	Yes, with parameter settings and materials used
Serial Number	Yes
a-length	120 mm
Diameter	12 mm
Process Connection	PG13,5
Electrical Connector	M12
Analog Interface 1	4-20 mA for DO, programmable
4 - 20 mA accuracy	< 0.3% current value + 0.05 mA
4 - 20 mA current range	3.5 to 22 mA
Operating Voltage	18 to 30 VDC
Digital HART Interface	HART Version 7.0
Analog Interface	Two wire sink needs to be powered by external power supply
Wetted Parts	Stainless steel 1.4435, Silicone (FDA approved), EPDM
Electrolyte	None
Membrane / Cap	Only compatible with H cap; Cap needs to be ordered separately
Accuracy at 25 °C	1 ± 0.05%-vol: 21± 0.2%-vol; 50 ± 0.5%-vol
Digital HART Interface	HART Version 7.0


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