Qubit S128 Methane Analyzer uses state of the art non-dispersive infrared technology (NDIR) to measure methane levels in a flowing gas at 0-5000ppm range. The instrument is equipped with a digital display that provides a measure of the methane concentration in units of ppm. In addition, an analog output signal (0 – 5 V) is provided for data logging by a computer with our optional software and data interface.
The S128 Methane Analyzer is a flow through gas analyzer therefore gas should be supplied under pressure at flow rates not to exceed 650ml/min. An optional built in gas pump may be provided ( S128-P) for easy delivery of the gas to the sensor. Additionally, a mass flow monitor may also be included for measurements of flow rate through the sample chamber (S128-PF). The S128 Methane analyzer is housed in a weather proof case with temperature control for enhanced stability of the signal and is ideally suited for both lab and field research (with an optional battery pack).
- Flow-through infra red gas sensor
- 0-5000ppm standard range
- Optional extended range available (0-10,000ppm)
- Linear response
- Easy two point calibration
- Digital display
- 0-5V analog output
- Optional built in gas pump (S128-P)
- Optional build in gas pump and flow monitor (S128-PF)
- Temperature controlled case for enhanced signal stability
- Optional battery pack available for field operation
Applications
- Fermentation studies
- Waste management
- Bioreactors and Biofuels research
- Single animal gas exchange
- Livestock emissions
- Land emissions
| Operating principle | Non-dispersive infrared |
| Gas sampling mode | Flowing gas stream, sealed chamber |
| Maximum gas flow rate | 650 mL/min |
| Measurement range (LCD display) | 0 – 5000ppm |
| Optional extended range | 0-10,000ppm |
| Accuracy | 0.5% FS error |
| Repeatability (at stable atm press and temp) | ± 20ppm CH4 |
| Response time | (@ 250 mL/min; to 95% of final value) ca. 25 sec |
| Warm up time (@ 22C) | 1hr |
| Output (linear) for | 1.2 – 4.5 VDC for 0 – 5000ppm |
| Calibration adjustments | Zero and Span |
| Two point calibration | |
| Operating temperature range | 0 to 45C |
| Built in heater with temperature controller | |
| Storage temperature range | -40 to 60C |
| Operating pressure range | ±1.5% local mean pressure |
| Humidity range | 5 to 95% RH, non-condensing (essential to dry the gas stream) |
| Pressure dependence | +0.19% reading per mm Hg |
| Power requirements | 12 VDC via 120/240 VAC/60 Hz adapter |
| Current requirements | 125 mA average, 450 mA peak |
| Dimensions (cm) | (H x W x D: 40 x 31 x 18) |
| Weight | 4.2 kg |
| Warranty | 1 year limited |
