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, O2, NOx 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

  • SMC9004M system

    SMC9004M system

    Measured valuesCO, NO, O2
    Performance-tested measurandsCO, NO, O2
    Measurement principlesNDIR spectroscopy
    Gas flow rate
    ≥ 60 l/h
    Measuring ranges
    CO0 ... 2 Vol.-%
    NO0 ... 2,000 ppm
    O20 ... 10 Vol.-%
    Certified measuring ranges
    CO0 ... 2,500 mg/m³
    O20 ... 25 Vol.-%
    Response time (t90)
    ≤ 2 s
    Depending on integrated analyzer
    Sensitivity drift
    Depending on integrated analyzer
    Zero point drift
    Depending on integrated analyzer
    Process temperature
    ≤ +650 °C
    Process pressure
    –100 hPa ... 100 hPa
    Ambient temperature
    +5 °C ... +35 °C
    Storage temperature
    –20 °C ... +70 °C
    Ambient pressure
    900 hPa ... 1,100 hPa
    Ambient humidity
    ≤ 85 %
    Relative humidity; non-condensing
    Enclosure rating
    Analog outputs3 outputs:
    4 ... 20 mA
    Analog inputsOptional 2 inputs possible
    Digital outputsOptional 4 outputs possible
    Digital inputsOptional 4 inputs possible
    Dimensions (W x H x D)
    620 mm x 2,000 mm x 700 mm
    ≤ 200 kg
    Material in contact with mediaPVDF, stainless steel 1.4404 (AISI 316L)
    MaterialSteel sheet enclosure
    Power supply
    Voltage220 V AC
    Frequency50 Hz
    Instrument air: dust, oil and water free≤ 100 l/min
    During backflushing
    Sample gas connections
    6 mm diameter
    Auxiliary gas connections
    Instrument airDN 6/8
    Corrective functionsManual or automated adjustment with test gases
    System components

    Gas sampling unit

    Sample gas line

    Analyzer cabinet


    Control unit

All technical data can be found accompanying the individual product