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Description

The MH2000-SO2 flue-gas-specific detector measures sulfur dioxide with an electrochemical sensor and internal pump sampling. Its High Performance, interference-resistant configuration is available in five ranges: 0-200, 0-500, 0-1000, 0-2000 and 0-5000 ppm. One single-gas instrument is supplied with the measuring span selected when ordering.

Select the Flue-Gas Sensor and Range

Match the measuring span to the sulfur dioxide concentration required by the sampling procedure. The supplied instrument does not automatically switch between the five order options. Interference resistance identifies this sensor configuration and does not establish complete immunity to every interfering gas.

The flue-gas-specific sensor serves a different application from the Standard and High Performance SO2 versions designated unsuitable for flue gas. A 0-5000 ppm span is also available in a separate biogas-specific configuration. Choose the application and sensor configuration together, rather than selecting by measuring span alone.

Sampling Arrangement

The internal pump delivers up to 1 L/min flow with ten adjustment settings. Sampling probes, filters and drying accessories are separate package choices. The detector's operating temperature is -20°C to 50°C. This is the instrument environment range and does not establish a temperature rating for a probe placed in a hot flue.

The housing measures 205 x 75 x 32 mm and weighs 300 g. A rechargeable lithium-polymer battery powers the instrument. Data logging and USB export are optional and excluded from this base configuration. Select the recording option before ordering if stored measurements are needed.

Specifications

Item	Specification
Model	MH2000-SO2
Detected gas	Sulfur dioxide (SO2)
Configuration	High Performance, flue-gas-specific, single-gas
Measuring range options	0-200, 0-500, 0-1000, 0-2000 or 0-5000 ppm
Interference resistance	Interference-resistant sensor configuration for flue-gas SO2 measurement
Sampling package	Application-specific probe, filter and drying accessories are separate choices
Sensor principle	Electrochemical
Sampling method	Internal sampling pump
Pump flow	Up to 1 L/min
Pump adjustment	10 settings
Display	LCD dot matrix; gas type, concentration, unit, battery level and time
Operating languages	English and Chinese
Concentration units	μmol/mol / ppm / mg/m³; 1 μmol/mol = 1 ppm
Alarm outputs	Sound, light and vibration
Alarm stages	Two
Alarm setpoints	User adjustable
Sound alarm	85 dB
Alarm lights	Blue for low alarm; red for high alarm
Measurement compensation	Temperature and pressure compensation
Instrument controls	Self-check, zero calibration and factory reset
Battery	3.6 V, 2300 mAh rechargeable lithium polymer
Charging time	4-6 hours
Operating temperature	-20°C to 50°C
Operating humidity	0-95% RH, non-condensing
Protection rating	IP65
Dimensions	205 x 75 x 32 mm
Instrument weight	300 g
Data recording / PC export	Optional; excluded from this base configuration

Readings and Alerts

The LCD dot-matrix display shows the gas type, concentration, unit, battery level and time. English and Chinese interfaces are available. Two alarm stages have adjustable setpoints, with sound, light and vibration outputs. Temperature and pressure compensation, self-check, zero calibration and factory-reset controls support setup.

Follow the supplied instructions for the SO2 sensor and sampling arrangement. Gallery images show the shared housing. A case photograph does not represent a two-instrument package or establish included sampling probes.

Flue Gas SO2 Detector - 200 to 5000 ppm