Spectrum Automation & Controls
Sector 58, Faridabad, Haryana
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Servo Tough

Leading Exporter of servotough spectra exact 2500, servotough spectra scan, servotough 1800 and servotough 2900 from Faridabad.

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The 2500 series of photometric process analysers offer single or dual component gas analysis to suit virtually any process, combustion or emissions gas analysis application. They are designed for industrial environments with the emphasis on rugged construction, high performance and simple operation.

  • On-line, real time process analysis
  • High reliability, accuracy and stability
  • Low cost of ownership and long maintenance intervals
  • Single & multi-component analysis capability
  • Easy integration with DCS and other control systems
  • Suitable for field mounting in hazardous area locations


  • Hazardous area certification (CENELEC Zone 1 and 2, FM Class 1 Division 2)
  • Measures corrosive, toxic and flammable sample streams
  • Simple operation, easy maintenance, comprehensive diagnostics
  • Full user facilities including password protection and real-time clock, with historical data logs
  • Two mA outputs, 3 relay outputs, all user assignable
  • Optional additional mA and relay outputs available
  • IP65 ingress protection

Typical Applications:

  • The 2500 series analysers are highly flexible and can be configured to suit virtually any process environment.

Measurements include:

  • Water in EDC
  • Carbon dioxide
  • Ethylene
  • Acetylene
  • Sulphur dioxide
  • Chlorine
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The SERVOTOUGH Spectra Scan Tunable Filter I.R. Analyser is an infrared absorption-based on line monitoring system, configured for measurement of light hydrocarbons (alkanes, alkenes and alkynes). A real-time optical analyser, the SERVOTOUGH SpectraScan is capable of accurately separating hydrocarbon components, a process which could previously only be performed by gas chromatograph (GC) analysers.

  • Real-time operation to sub-second update rates
  • C1–C5+ hydrocarbon separation and total gas analysis
  • Continuous flow-through analysis
  • Remote, unattended continuous operation
  • Eliminates carrier gases and other consumables
  • Permanent span calibration for industrial deployment
  • Virtually zero cross-sensitivity and high sensitivity

Technology Used:

Spectroscopic – Advanced NIR/IR absorption spectroscopy utilises state of the art spectral scanning and chemometric based data processing for exceptionally high accuracy, low cross sensitivity and a very fast speed of response. A flow-through cell utilises a patented spectrometer design for a highly stable and accurate measurement; an advanced Tuneable Filter Spectroscopy Analysis Algorithm delivers industry-leading interference compensation with a permanent span calibration, low cross-interference, high baseline stability and a linear response.


  • Simultaneous scanning of selected wavelength bands for gases including Methane, Ethane, Propane, iso-Butane, n-Butane, Propylene and Ethylene.
  • Unique wavelength-sweeping tuneable filter spectrometer enables sub-second update rates for C1-C5+ analysis.
  • Robust and reliable design, the instrument’s optimised design produces very low zero and span drift, with minimal validation times
  • Fixed hardware configuration ensures low maintenance costs
  • No carrier gas ensures minimal installation infrastructure requirements
  • Available as 19” rack mounted general purpose unit and wall mounted safe area version certified to CSA CL1 Div2 and ATEX Zone 2.
  • MODBUS over TCP/IP with Ethernet port
  • Optional Local display and 4-20mA outputs

Typical Applications:

  • BTU/Wobbe content measurement
  • Natural gas quality and composition
  • Fuel blending and control
  • Gas turbine, engines, fuel cells
  • Alternative (biogas, syngas) fuels
  • LNG production and custody transfer
  • Hydrocarbon speciation applications
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The 1800 is a stable, accurate and highly specific oxygen analyser for safe area use. It is designed to reliably measure percent oxygen in many safety critical industrial applications.

  • Designed for safe area oxygen analysis
  • Low maintenance and re-calibration requirements
  • Special version for solvent bearing samples
  • Range of alarm outputs to aid integration with other systems
  • Easy to set up and operate


  • Fast response
  • Low cross sensitivity to background gases
  • Extremely low drift
  • Isolated 4-20mA analogue output
  • Concentration, range indication and flow fail alarm relay outputs
  • Reliable analogue based electronics
  • Solvent vapour tolerant version available
  • Weatherproof enclosure

Typical Applications:

  • Ambient air monitoring
  • Gas cylinder storage
  • Safety inerting monitoring
  • Marine inerting applications
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The SERVOTOUGH 2900 is a series of high performance cross stack monitors designed for a variety of emissions monitoring and process control applications in a diverse range of industries.

The 2900 analysers are distributed by Servomex on behalf of NEO Monitors AS. Please contact us for a full list of countries where we can supply the 2900.

  • Continuous in-situ monitoring
  • Low detection limits
  • Response times down to one second
  • No direct cross interference to other gases
  • Utilising the proven tunable diode laser (TDLAS) measurement technique
  • High temperature and high pressure operation possible
  • Suitable for high dust applications
  • Ethernet connectivity option
  • Low cost of ownership

Technology Used:

  • The following instrument configurations are available in the 2900 product line:
    • Single Path monitor
    • Single Path compact
    • Open Path monitor
    • Multipass monitor
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Spectrum Automation & Controls

Mukesh Arora(Owner)
Plot No. 66, Sector 58, Ballabgarh
Faridabad - 121004
Haryana, India
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