4 Gas Detector with Internal Pump - CO, H2S, O2 and LEL
4 Gas Detector with Internal Pump - CO, H2S, O2 and LEL - CO / H2S / O2 / LEL In stock. Shipping calculated at checkout.
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Description
Description
A 4 gas detector with an internal pump brings CO, H2S, oxygen and combustible gas measurement together in the MH2000-M4. The pump draws air into the instrument for measurement, and its suction has ten adjustable levels. This configuration provides all four gas channels in one handheld unit, with concentration readings on a dot-matrix LCD and two-stage sound and light alarms.
Pumped Sampling and Daily Controls
The sampling pump has a maximum flow of 1 L/min. The LCD shows the gas type, concentration, measurement unit, time and battery status; English and Chinese interfaces are available. Temperature and pressure compensation are built into the measurement functions.
Self-calibration, zero calibration and a factory reset are available through the instrument controls. Alarm set points can be adjusted for the monitoring procedure. Use the instrument instructions for calibration, checks and alarm handling; this monitor is one part of a workplace gas-monitoring procedure.
CO, H2S, Oxygen and LEL Channels
Three electrochemical channels measure CO, H2S and O2, while the combustible gas channel uses catalytic combustion. This is one complete four-gas configuration:
| Gas channel | Measurement range | Resolution | Sensor principle |
|---|---|---|---|
| Carbon monoxide (CO) | 0-1000 ppm | 1 ppm | Electrochemical |
| Hydrogen sulfide (H2S) | 0-100 ppm | 0.1 ppm | Electrochemical |
| Oxygen (O2) | 0-30% Vol | 0.01% Vol | Electrochemical |
| Combustible gas (LEL) | 0-100% LEL | 1% LEL | Catalytic combustion |
CO and H2S readings use ppm, oxygen uses percent by volume, and combustible gas uses percent LEL. These units describe different measurements. Compare the channel spans with the gases and ranges required for your task when selecting the instrument.
Instrument Specifications
| Item | Specification |
|---|---|
| Model | MH2000-M4 |
| Configuration | CO / H2S / O2 / LEL |
| Sampling method | Internal sampling pump |
| Maximum pump flow | Up to 1 L/min |
| Pump control | 10 adjustable suction levels |
| Display | LCD dot-matrix display |
| Displayed information | Gas type, concentration, unit, time and battery status |
| Interface languages | English and Chinese |
| Alarm indication | Sound and light |
| Alarm settings | Two stages with adjustable set points |
| Concentration compensation | Temperature and pressure compensation |
| Calibration controls | Self-calibration and zero calibration |
| Reset control | Restore factory settings |
| Battery | 2300 mAh rechargeable lithium-polymer |
| Operating temperature | -20 to 50 Degree C |
| Operating humidity | 0-95% RH, non-condensing |
| Ingress protection | IP65 |
| Housing | Engineering plastic |
| Dimensions | 205 x 75 x 32 mm |
Included Items and Selection Notes
The package includes the detector, a charging/data cable, an instruction manual and an aluminum carrying case. The instrument uses a rechargeable lithium-polymer battery and measures 205 x 75 x 32 mm. Its engineering-plastic housing is rated IP65.
Choose this model when your procedure calls for a pump to bring a sample into the detector. The four quoted gas channels are fixed for this configuration. Product photographs illustrate the series housing; demonstration screen readings and gas labels may differ from the supplied configuration.
