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品牌	HAMILTON/哈美頓	供貨周期	現貨

VisiPro DO 120

產品介紹

貨號：243420

*根有防爆認證的光學溶解氧氧電極

VisiPro DO 120是*的能夠用于防爆區(qū)域的光學溶解氧電極。

光學測量原理改善了測量的性能，簡化了維護的程序。改善性能是相對于傳統(tǒng)的電化學（電流法）電極，不受流速的影響，快速啟動無需極化時間，維護十分簡單。

內置變送器，電極可以直接和過程控制系統(tǒng)通過4~20毫安信號或者數字信號HART相連接。所有相關的數據，包括校準信息，診斷信息等都儲存在電極頭中簡化了校準和維護的程序，附加的無線通訊功能可以使電極直接和你的電腦相連接，簡化了實驗室校準、設置和維護程序。

為什么選擇VisiPro DO Ex？

簡化了校準和維護程序:

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
Wetted Parts	Stainless steel 1.4435, Silicone (FDA approved), EPDM
Electrolyte	None
Membrane / Cap	Only compatible with H cap; Cap needs to be ordered separay
Digital HART Interface	HART Version 7.0
Digital HART Interface	HART Version 7.0
Accuracy at 25 °C	1 ± 0.05%-vol: 21± 0.2%-vol; 50 ± 0.5%-vol
Analog Interface	Two wire sink needs to be powered by external power supply

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