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Method of Detection |
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Electrochemical sensor for O2 , infrared detector for CH4 & CO2
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Ranges Available |
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0-25.0% O2; any range between 0-50.0% and 0-100.0% CH4 and CO2
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Resolution |
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0.1% on CO2, O2, & CH4
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Accuracy & Repeatability |
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±1% of full scale
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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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Less than 30 seconds not including sample line delay
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Ambient Temperature Range |
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40°F to 104°F (4°C to 40°C), Optional: -22°F to 158°F (-30°C to 70°C) with Outdoor Packages
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Linearity |
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±1% of full scale for each gas measured
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Size & Weight |
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24" H x 24" W x 10" D @ 90 lbs (61 x 61 x 25 cm @ 20 kg)
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Power |
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115 VAC 60 Hz (220 VAC 50 Hz available)
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Output Options |
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Isolated 4-20 mA standard
RS232, RS485, MODBUS®, Ethernet outputs optional
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Alarms |
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High O2, high CO2, low CH4, low flow; SPDT relays with 10A contacts
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Analyzer Type |
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Landfill Gas Analyzer
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Other Analysis Options |
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H1 - H2S, range 0 - 200 PPM
H2 - H2S, range 0 - 2,500 PPM
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Hazardous Area Rating Options |
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Class 1 Div 2 Class using purge kit system
For H2 measurement - See 970 Series
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For continuous analysis of oxygen (O2), methane (CH4), and/or carbon dioxide (CO2) in recovered gases from landfill and biogas sites. Hydrogen sulfide (H2S) readout optional.
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A - BASE MODEL
- Easy to use manual potentiometer calibration with LCD digital displays for each gas
- Temperature controlled sensors for maximum stability
- Long life electrochemical O2 sensor
- Infrared detector for reliable measurement of CO2 and CH4 (Models other than 910A or 910C). Detector may be cleaned in the field
- Stainless steel hard tubing and corrosion-resistant components for internal sample health
- Cabinet positive-pressure system to minimize the corrosive effects of hydrogen sulfide (H2S) on cabinet electronics & sensors
- Built in sample pump, pre-filter, filters, and flow meter
- Automatic moisture removal without the use of cooling water, compressed air or failure-prone thermal-electric elements
- Back pressure regulator to allow user to measure and minimize vacuum effects if the unit is vented back to the blower
- Rugged NEMA4 (IP65) enclosure
- Isolated 4 - 20 mA outputs for each gas
- Low flow alarm & relays
C - AUTOCALIBRATION MODEL
- Same features as Base model, plus:
- Automatic analyzer calibration with full-color touch screen LCD display
- Diagnostic alarms with troubleshooting guidance in display
- 'Cal Now' feature initiates full calibration with a single swipe of a magnetic wand
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- H2S & BTU readouts (see ranges and models)
- Gas hi/low alarms with relay contacts
- RS232, RS485, MODBUS® and Ethernet outputs (available on Model C only)
- Class 1 Division 2 Group BCD rated purge kit for use in hazardous areas
- Outdoor weather package for operation from -22°F to 158°F (-30°C to 70°C)
- O2 measurement by paramagnetic detector
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- Ambient air for O2 span and CO2 & CH4 zero
- Analyzed calibration gas of CO2 and CH4 in nitrogen for CO2 & CH4 span and O2 zero
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