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Model M90XP Carbon Dioxide Monitor
Brand: Envent EngineeringThe Model M90XP and M90XP-ppm are designed to monitor ppm and percent level CO2 concentrations in natural gas and biogas applications. An infrared, dual-beam technology is incorporated into the design of the instrument.
The M90XP and M90XP-ppm can be included as an additional measurement with other Envent analyzers, or can be offered as a stand-alone analyzer with an integrated sample conditioning system.
See individual M90XP (%) and M90XP-PPM datasheets for more information.
Features- Class I, Division 1
- Dual-Beam NDIR Technology
- Long-term stability
- Low power consumption (2 watts)
- Dual alarm outputs
- 4-20 mA output
- RS-232 and RS-485 Modbus communications
- Two Adjustable set point control relays
- Ppm and % level sensors available
Specifications
Brand
Operating Power
- 24 VDC standard
- 12 VDC, 120/240 VAC optional
Electrical Classification
- Certified for Class I, Div1 Groups B, C & D
Repeatability
- M90 (%): ± 0.1 % CO2
Operating Temperature
- M90 (%): 10° to 50° C (50° to 122° F). Consult factory for other requirements
- M90 (PPM): 0° to 45° C (32° to 113° F)
Measurement Ranges
- M90 (%): 0 - 20%; 0 - 100%
- M90 (PPM): 0-5000ppm (see datasheet for more details)
Outputs
- Alarms: 2 solid state drivers 2 Amp, 30 VDC maximum
- Isolated 4–20 mA (concentration only)
Accuracy
- M90 (%): +/- 3% of reading or 0.1% CO2 at cal temperature; +/- 5% of reading or 0.1% CO2 over full operating temperature range
- M90 (PPM): 0 - 500 PPM (+/- 3% of range); 0 - 1000 PPM (+/- 10% of range) - range dependent*
- M90 (PPM): 0 - 2000 PPM, 0-3000 PPM, 0 - 5000 PPM, 0 - 1%: +/- 2% of range +/- <0.015% of range per mbarv
Digital Interface
- RS-485 & RS-232
