便攜式微量氧分析儀325是專為**測(cè)定痕量在清潔,干燥的樣氣PPM的氧氣??蛻艨筛鼡Q電化學(xué)傳感器產(chǎn)生一個(gè)小的輸出電流直接正比于樣品中的氧氣量,是衡量任何微量氧范圍從0-100 ppm級(jí)到0-9999 PPM的能力??勺x的*低水平是百萬分之一。
The Nova 325 Portable Trace Oxygen Analyzer is designed for accurately measuring trace PPM oxygen in clean, dry sample gas. The customer replaceable electrochemical sensor produces a small output current directly proportional to the amount of O2 in the sample and is capable of measuring trace PPM levels of O2 in any range from 0-100 to 0-9999 PPM. The lowest readable level is 1 PPM. Bypass solenoid valves are used to trap low PPM oxygen in the O2 cell to avoid exposure to ambient air. This allows for a rapid purge down and also protects the cell from momentary over exposure to high O2 levels. A flow control valve and flow meter are provided for regulating the flow of samples under positive pressure. A built-in sample pump is provided for use on samples under atmospheric or slight negative pressure. A rechargeable battery provides enough power for the pump and electronics for about 20 hours of continuous opertion. The analyzer may still be operated while it is being charged. A red LED indicates when to recharge the analyzer and a green LED indicates that it is receiving recharging power. The battery recharger is included with the analyzer. |
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