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  • 产品名称：415N4X电化学式壁挂过程微氧气体分析仪

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415N4X电化学式壁挂过程微氧气体分析仪 415N4X电化学式壁挂过程微氧气体分析仪已被设计用于跟踪在非腐蚀性气体流的氧气水平检测。该传感器产生一个很小的电流输出直接正比于样品的氧气。这个小输出温度补偿，放大，然后在PPM的氧仪上显示的数字。该信号也传送到记录仪终端为电压或电流输出。作为传感器的老化，密封的内部电解液会被消耗掉，并*终需要更换。该传感器通常持续大约12至18个月
详情介绍：
415N4X电化学式壁挂过程微氧气体分析仪
415N4X电化学式壁挂过程微氧气体分析仪已被设计用于跟踪在非腐蚀性气体流的氧气水平检测。该传感器产生一个很小的电流输出直接正比于样品的氧气。这个小输出温度补偿，放大，然后在PPM的氧仪上显示的数字。该信号也传送到记录仪终端为电压或电流输出。作为传感器的老化，密封的内部电解液会被消耗掉，并*终需要更换。该传感器通常持续大约12至18个月

 
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 		 The Nova 415 Series Trace O2 analyzers have been designed for the detection of trace levels of O2 in a non-corrosive gas stream. In operation, the O2 content in the sample gas is detected by a 'fuel cell' type electrochemical sensor. This sensor produces a small current output directly proportional to the O2 in the sample. This small output is compensated for temperature, amplified, and then displayed in PPM O2 on a digital meter. The signal is also sent to recorder terminals as a voltage or current output. As the sensor ages, the sealed internal electrolyte will be consumed and will require eventual replacement. The sensor normally lasts about 12 to 18 months and is a nominal-cost customer-replaceable part.
 
Specifications  

Method of Detection

 Customer replaceable 'fuel cell' oxygen sensor

Ranges Available

 Any range between 0-10 PPM and 0-10000 PPM

Resolution

 ±1 PPM

Accuracy & Repeatability

 ±1% of full scale (minimum 0.5 PPM)

Drift

 Less than 1% of full scale per week

Response Time (T-90)

 O2 sensor may require an initial purge down from air to low PPM O2 which may last up to 6 hours. After purge, T90 response from 1000 to 0 PPM O2 is 30 seconds.

Ambient Temperature Range

 32 to 122°F (0 to 50°C), Lower temperatures (-5°F, -20°C) with Cold Weather Package

Linearity

 ±1% of full scale (minimum 0.5 PPM)

Size & Weight

 Dimensions will vary depending on enclosure style and options required

Power

 115 VAC, 60 Hz
220 VAC, 50 Hz

Output Options

 4-20 mA into 500 ohms non-isolated standard
Isolated 4-20 mA, RS232, RS485, MODBUS, Ethernet outputs

Alarms

 High and/or low alarm contacts available, relay contacts SPDT 5A @ 220 VAC rating
Low flow alarm

Analyzer Type

 O2 Analyzer

Hazardous Area Rating Options

 General Purpose, Non-Hazardous

 

Applications  
    For continuous analysis of trace PPM levels of oxygen (O2) in process gas streams. Applications include blanketing mixtures, glove boxes, electronics, research, hydrogen/nitrogen mixtures, and many others.



 

Features  
  • Bright digital readout in PPM O2
  • Ranges available from 0 to 10 PPM to 0 to 10000 PPM O2
  • Microprocessor control for push button calibration
  • Unaffected by hydrocarbons in the sample
  • Easy-to-maintain, modular layout
  • Built in sample pump or pressure regulator, and 4-20 mA outputs
  • Manual or solenoid valves trap nitrogen (N2) in cell to avoid depletion when analyzer is powered off



 

Options  
  • Hi/Low gas, low flow, and diagnostic alarms available
  • Isolated analog, RS232, RS485, MODBUS, and Ethernet outputs available
  • Sample conditioning systems available for removal of moisture, acidic gas, and dust
  • Cabinet purge system available for use in hazardous areas
  • One-step 'cal-now' button with touch screen LCD display
  • Full automatic calibration with touch screen LCD display
  • Cold weather package for operation to -20°C (-4°F)
  • Cabinet coolers can be fitted to most models
  • Sensors mounted in temperature controlled heated box to improve accuracy



 

Calibration  
  • Nitrogen for zero
  • Air or analyzed calibration gas for span



 

Unique Applications  
    The O2 sensor in the Model 415 is not normally affected by gas stream composition. However, high levels of acid gases such as carbon dioxide (CO2) and sulfur dioxide (SO2) can cause slightly elevated O2 readings and decreased cell life. All Nova analyzers are built using proven technologies and techniques. If this product does not suit your application, please contact Nova. In many cases, we are able to build an analyzer specific to your needs.
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