Process solutions

Your Benefits

  • Includes water and dust removal and calibration features and can automatically drain water, take samples, and back-flush.
  • Easy and convenient to operate
  • Imported parts, mature technology, highly reliable
  • Accurate measurement, simple and convenient operation, low-maintenance, works in harsh environments

The exact device specifications and performance data of the product may deviate from the information provided here, and depend on the application in which the product is being used and the relevant customer specifications.


This product can meet system requirements to provide continuous monitoring of CO during the production process. Based on a system of manual control for operations such as sampling, back-purging, and draining, the system’s internal control unit can automatically perform the tasks of sampling, back-purging, and draining to reduce the workload of maintenance staff.

At a glance
  • Utilizes original German diaphragm vacuum pumps for high reliability
  • Uses an imported pneumatic valve control system for sampling and back-purging
  • A precision multi-stage filtration process uses micro-particle filters for maximum removal of dust particles from gas samples


Technical overview

  • SMC9004D system

    SMC9004D system

    Measured valuesCO
    Performance-tested measurandsCO
    Measurement principlesNDIR spectroscopy
    Gas flow rate
    ≥ 60 l/h
    Measuring ranges
    CO0 ... 2,000 ppm
    Certified measuring ranges
    CO0 ... 2,500 mg/m³
    Response time (t90)
    ≤ 2 s
    Sensitivity drift
    1 %: of measuring range full scale
    Sample gas temperature
    ≤ +650 °C
    Process pressure
    –100 hPa ... 100 hPa
    Ambient temperature
    +5 °C ... +45 °C
    Storage temperature
    –20 °C ... +70 °C
    Ambient pressure
    900 hPa ... 1,100 hPa
    Ambient humidity
    ≤ 85 %
    Enclosure rating
    Analog outputs1 output:
    4 ... 20 mA
    Analog inputsOptional 2 inputs possible
    Digital outputsOptional 4 outputs possible
    Digital inputsOptional 4 inputs possible
    Dimensions (W x H x D)
    700 mm x 2,000 mm x 620 mm
    ≤ 200 kg
    Material in contact with mediaPVDF, stainless steel 1.4404 (AISI 316L)
    MaterialSteel sheet enclosure
    Power supply
    Voltage240 V AC
    Frequency50 Hz
    Sample gas connections
    Swagelok 6 mm
    Auxiliary gas connections
    Instrument airDN 6/8
    Corrective functionsManual or automated adjustment with test gases
    System components

    Gas sampling units

    Sample gas line


    Analyzer cabinet

All technical data can be found accompanying the individual product