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VOC and Hydrocarbon in Gas or Ambient Air Analyzer

MS1800

VOC and Hydrocarbon in gas or ambient air analyzer. VOC in industrial processes and applications. Environmental monitoring applications.

VOC and Hydrocarbon in Gas or Ambient Air Analyzer | Environmental

DTG6 A LED Display, 24 VDC Source 3-wire Switch Output

  • Description
  • Specification
  • Application
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  • F.A.Q

The MS1800 is a VOC and Hydrocarbon Gas Concentration Analyzer. It is designed to monitor VOC gases within ambient air and gases. Designed for monitoring open areas in or around industrial process and environmental monitoring.

  • Monitoring open areas in or around industrial process.
  • Monitoring municipal or industrial emissions.
  • VOC removal systems monitoring.
  • Environmental monitoring.
  • Detection of VOCs in wastewater systems through off gassing.
  • Odor control area monitoring.
  • Sewage network monitoring.
  • Natural gas extraction area monitoring.


The instrument senses gases or volatiles providing a measurement system with very low maintenance requirements.

VOC and Hydrocarbon in Gas or Ambient Air Analyzer Features

  • Continuous measurement.
  • Inbuilt Humidity compensation.
  • Contact-less measurement.
  • Compact and light.
  • Integrated data-logging.
  • Low operating and maintenance costs.
  • Ideal for the Oil & Gas sector.
  • Low maintenance, no sensor cleaning.
  • Insensitive to turbidity.
  • Field proven technology.

High Concentration Oil in Water Analyzer Specifications

PARAMETEROPERATIONAL REQUIREMENTSNOTES
 MINIMUMMAXIMUM 
Detection Range1 ppm100 ppm 
Output Range (Default)0 ppm100 ppmConfigurable on commissioning
Repeatability-5%+5%See Note 1
Accuracy-15%+15% SeeNote 1
Measurement frequencyContinuous15, 20, 30, 60 minutes modes available on request
Ambient Temperature0 °C / 32 °F40 °C / 104 °FSee Note 2
Water Temperature1 °C / 34 °F40 °C / 104 °FSee Note 2
Analog Output4 mA20 mAScalable to range required, max load 900 Ω
Analog Output Isolation400 V DC
Relay Voltage 50 VAlarm and Fault Relays with NO contacts
Relay Current 5 A 
Service InterfaceUSB-A to PCUsing Multisensor Software provided
Data StorageμSD Card6 months
Instrument CaseIP65 / NEMA 4X 
Instrument Weight5 kg / 11 lbs 
Instrument Dimensions300 x 200 x 132 mm 11.8 x 7.8 x 5.2 inches 
Sampling Chamber MaterialStainless SteelOptional: PVC
Sampling System Weight12 kg / 26 lbsWithout water
Sampling System Dimensions570 x 490 mm 22 x 19 inchesMounted on its own PVC backboards
Sampling System Capacity3 litres / 0.79 US Gallons 
Flow Limit SwitchContacts closed if flow below set pointOption available on request
Water Flow Rate2 l/min / 0.52 US gpm 
Supply Voltage

AC Version

DC Version

90 V AC
10 V DC

240 V AC
15 V DC

50 Hz or 60 Hz
Power Consumption9 WTypical 7 W during operation

VOC and Hydrocarbon in Gas or Ambient Air Analyzer Applications

  • Monitoring open areas in or around industrial process.
  • Monitoring municipal or industrial emissions.
  • VOC removal systems monitoring.
  • Environmental monitoring.
  • Detection of VOCs in wastewater systems through off gassing.
  • Odor Control area monitoring.
  • Sewage network monitoring.
  • Natural gas extraction area monitoring.

What is the principle of operation?
The system samples the air above the effluent/sewage continuously; this air is then passed through the sensor which reacts with VOCs and measures their concentration. The concentration is then reported via the analogue output.

What does the MS1800 VOC Gas Analyzer actually measure?
The MS1800 measures the concentration VOC gas measured against a target gas standard (usually toluene)

How often does the instrument provide a reading?
The instrument provides a reading via the 4-20 mA output continuously. 15, 20, 30, 60 minute interval modes available on request.

What is the reported value?
The reported value is Total VOCs, in ppm, is in the range from 0 to 500 ppm

How is the MS1800 calibrated?
The instrument is factory calibrated against toluene.

What are common target gases?
Petroleum Gas, Methane, Iso Butane, Kerosene, Ethanol, Diesel, Iso-butylene, Toluene, Acetone, Xylene, Heptane, Benzene, Methanol Mercaptan

What is the required maintenance? Is it expensive?
The instrument requires a service every 6 months to replace some low cost components such as activated carbon filters and to make sure that there are no air leaks.

What is the warranty?
Every instrument comes with 1 year warranty from the shipment date

How does the MS1800 alert the user to high concentrations of gas?
The MS1800 incorporates a relay which is switched at a user definable threshold. This can be hardwired to valves/pumps and so on to stop processes very quickly. Alternatively the users SCADA system can also be used.

The MS1800 is a VOC and Hydrocarbon Gas Concentration Analyzer. It is designed to monitor VOC gases within ambient air and gases. Designed for monitoring open areas in or around industrial process and environmental monitoring.

  • Monitoring open areas in or around industrial process.
  • Monitoring municipal or industrial emissions.
  • VOC removal systems monitoring.
  • Environmental monitoring.
  • Detection of VOCs in wastewater systems through off gassing.
  • Odor control area monitoring.
  • Sewage network monitoring.
  • Natural gas extraction area monitoring.


The instrument senses gases or volatiles providing a measurement system with very low maintenance requirements.

VOC and Hydrocarbon in Gas or Ambient Air Analyzer Features

  • Continuous measurement.
  • Inbuilt Humidity compensation.
  • Contact-less measurement.
  • Compact and light.
  • Integrated data-logging.
  • Low operating and maintenance costs.
  • Ideal for the Oil & Gas sector.
  • Low maintenance, no sensor cleaning.
  • Insensitive to turbidity.
  • Field proven technology.

High Concentration Oil in Water Analyzer Specifications

PARAMETEROPERATIONAL REQUIREMENTSNOTES
 MINIMUMMAXIMUM 
Detection Range1 ppm100 ppm 
Output Range (Default)0 ppm100 ppmConfigurable on commissioning
Repeatability-5%+5%See Note 1
Accuracy-15%+15% SeeNote 1
Measurement frequencyContinuous15, 20, 30, 60 minutes modes available on request
Ambient Temperature0 °C / 32 °F40 °C / 104 °FSee Note 2
Water Temperature1 °C / 34 °F40 °C / 104 °FSee Note 2
Analog Output4 mA20 mAScalable to range required, max load 900 Ω
Analog Output Isolation400 V DC
Relay Voltage 50 VAlarm and Fault Relays with NO contacts
Relay Current 5 A 
Service InterfaceUSB-A to PCUsing Multisensor Software provided
Data StorageμSD Card6 months
Instrument CaseIP65 / NEMA 4X 
Instrument Weight5 kg / 11 lbs 
Instrument Dimensions300 x 200 x 132 mm 11.8 x 7.8 x 5.2 inches 
Sampling Chamber MaterialStainless SteelOptional: PVC
Sampling System Weight12 kg / 26 lbsWithout water
Sampling System Dimensions570 x 490 mm 22 x 19 inchesMounted on its own PVC backboards
Sampling System Capacity3 litres / 0.79 US Gallons 
Flow Limit SwitchContacts closed if flow below set pointOption available on request
Water Flow Rate2 l/min / 0.52 US gpm 
Supply Voltage

AC Version

DC Version

90 V AC
10 V DC

240 V AC
15 V DC

50 Hz or 60 Hz
Power Consumption9 WTypical 7 W during operation

VOC and Hydrocarbon in Gas or Ambient Air Analyzer Applications

  • Monitoring open areas in or around industrial process.
  • Monitoring municipal or industrial emissions.
  • VOC removal systems monitoring.
  • Environmental monitoring.
  • Detection of VOCs in wastewater systems through off gassing.
  • Odor Control area monitoring.
  • Sewage network monitoring.
  • Natural gas extraction area monitoring.

What is the principle of operation?
The system samples the air above the effluent/sewage continuously; this air is then passed through the sensor which reacts with VOCs and measures their concentration. The concentration is then reported via the analogue output.

What does the MS1800 VOC Gas Analyzer actually measure?
The MS1800 measures the concentration VOC gas measured against a target gas standard (usually toluene)

How often does the instrument provide a reading?
The instrument provides a reading via the 4-20 mA output continuously. 15, 20, 30, 60 minute interval modes available on request.

What is the reported value?
The reported value is Total VOCs, in ppm, is in the range from 0 to 500 ppm

How is the MS1800 calibrated?
The instrument is factory calibrated against toluene.

What are common target gases?
Petroleum Gas, Methane, Iso Butane, Kerosene, Ethanol, Diesel, Iso-butylene, Toluene, Acetone, Xylene, Heptane, Benzene, Methanol Mercaptan

What is the required maintenance? Is it expensive?
The instrument requires a service every 6 months to replace some low cost components such as activated carbon filters and to make sure that there are no air leaks.

What is the warranty?
Every instrument comes with 1 year warranty from the shipment date

How does the MS1800 alert the user to high concentrations of gas?
The MS1800 incorporates a relay which is switched at a user definable threshold. This can be hardwired to valves/pumps and so on to stop processes very quickly. Alternatively the users SCADA system can also be used.