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产品名称：
7901EN4气体分析仪
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Method of Detection |
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Electrochemical sensor for O2; dielectric ceramic sensor for Dew Point
NDIR infrared detector for CO, CO2, CH4, & NH3; thermal conductivity cell for H2;
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Ranges Available |
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0-10%, 0-100.0% CH4
0-100% NH3
0-10000 PPM, 0-50.0% O2
0-2.00%, 0-100.0% CO2
0-20.0%, 0-100.0% CO
0-40.0%, 0-100.0% H2
-10 to 80°F(-23° to 26°C), 48 to 68°F(-100 to 20°C) D.P.
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Resolution |
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0.1%, 1 PPM, 1°F (Dew Point)
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Accuracy & Repeatability |
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±1% of full scale on all gases
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Drift |
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Less than 2% of full scale per month
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Response Time (T-90) |
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20-30 seconds to 90% step change
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Ambient Temperature Range |
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32 to 122°F (0 to 50°C), Lower temperatures (-5°F, -20°C) with Cold Weather Package
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Linearity |
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±1% of full scale
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Size & Weight |
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Physical data will vary depending on model and enclosure required
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Power |
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115 VAC, 60 Hz
220 VAC, 50 Hz
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Output Options |
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4-20 mA into 500 ohms non-isolated standard
Isolated 4-20 mA, RS232, RS485, MODBUS, Ethernet outputs
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Alarms |
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High and/or low alarm contacts available, relay contacts SPDT 5A @ 220 VAC rating
Low flow alarm
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Analyzer Type |
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CO Analyzer
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Hazardous Area Rating Options |
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General Purpose, Non-Hazardous
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For continuous monitoring of any combination of heat treat atmosphere gases such as Oxygen (O2), Methane (CH4), Carbon Dioxide (CO2), Carbon Monoxide (CO), Hydrogen (H2), Ammonia (NH3), and Dew Point (standard and low ranges). Also available for other industrial process gases.
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- Best value multi-gas analyzer including hydrogen
- Sensitive infrared detectors for CO, CO2, CH4, and NH3 temperature controlled where necessary to reduce drift
- Thermal conductivity detector for hydrogen
- Long life (2-5 years) electrochemical oxygen sensor, PPM and % ranges available
- Dielectric ceramic sensor for standard or low range dew point
- Bright digital display for each gas
- Built in sample pump or pressure regulator
- Microprocessor for push button calibration
- Easy to maintain modular layout
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- 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 -5°F (-20°C)
- Cabinet coolers can be fitted to most models
- High temperature filters and probes
- Sensors mounted in temperature controlled heated box to improve accuracy
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- Ambient air for O2 span and other gases zero
- Analyzed calibration gas with representative concentrations of non-O2 gases for span
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