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Wobbe Index Analyzer

Our range of products include wobbe index, btu calorimeter, servotough oxy exact 2200 and servopro mono exact gas analyzers.

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The New COSA 9610™ is the latest instrument from COSA Xentaur for measuring Wobbe Index, BTU/Heating Value and CARI (Combustion Air Requirement Index).

Calorimeter Measurement Principle (Residual Oxygen Measurement)
The COSA 9610™ Wobbe Index Meter's measuring principle is based on the analysis of the oxygen content in the flue gas after combustion of the sample. A continuous gas sample is mixed with dry air at a precisely maintained constant ration, which depends on the BTU range of the gas to be measured. The fuel air mixture is oxidized in a combustion furnace in the presence of a catalyst at 800’C, and the oxygen concentration of the combusted sample is measured by a zirconia oxide cell. The residual oxygen provides an accurate measurement for the Combustion Air Requirement (CARI) of the sample gas, which can be correlated accurately to the Wobbe Index of the gas.


Advantages
Key advantages of this method are its insensitivity to changes in ambient temperature, a very fast response with the ability to measure gases with BTU values down to zero and the measurement of the Combustion Air Requirement Index besides Wobbe Index and Heating Value.


Analyzer Construction

The COSA 9610™ is housed in a painted stainless steel NEMA4X (IP66) cabinet with the dimensions 41” x 41” x 16” suitable for outdoor installations without additional temperature controlled shelter. For extreme climate conditions, the standard operating temperature range of the COSA 9610™ can be extended with the addition of a cabinet heater and/or vortex cooler. The cabinet is suitable for wall mounting or rack mounting.

The analyzer cabinet has three compartments:

  1. The Gas Mixing Compartment: Contains sample condition and the gas mixing system. Components in this compartment are intrinsically safe. The gas mixing compartment can optionally be heated to avoid condensation of heavier gas constituents.
  2. The Electronics Compartment: Contains the industrial PC based controller, which performs all instrument control functions and calculations. Results are available through isolated analog outputs and an LCD, which is visible through a cabinet window and displays residual O2 in %, cell voltage in mV, Wobbe Index and Calorific Heating Value (optionally) in BTU/SCF or MJ/Nm3, relative density (optional), and CARI (Combustion Air Requirement Index).
  3. The Combustion Furnace Compartment: Contains the combustion furnace with the zirconia oxide sensor. The exhaust gas is vented and drained. The electronics compartment and combustion furnace compartment can optionally be purged for Class 1 Div 2 or Class 1 Div 1 applications.

Maintenance
The COSA 9610™ has no moving parts and consequently, maintenance requirements are low. With the use of proper sample conditioning, the COSA 9610™ can operate unattended for several months. All compartments are easily accessible through separate doors on the front side of the enclosure.

 

The COSA 9610™ Wobbe Index Meter has superseded previous models of calorimeters such as the COSA 9600™ and COSA CW95.



Additional Information:
  • Item Code: 9610
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The 2200 is specifically designed to measure oxygen in process control applications.

  • Unrivalled accuracy, reliability, stability and repeatability
  • Low installation cost
  • Low cost of long-term ownership
  • Ease of use
  • Suitable for ATEX Category 2 / CENELEC Zone 1 / FM Division 1 / FM Zone 1 use
    • Servomex 2223 - ATEX Category 2 / FM Division 1 Hazardous Area Oxygen Transmitter
    • Servomex 2210 - ATEX Category 3 / FM Division 2 Control Unit
    • Servomex 2213 - ATEX Category 2 / FM Division 1 Control Unit

Features:

  • Transmitter unit:
    • 0 -100% range with 0.01% accuracy (minimum range 0 - 0.5%)
    • Intrinsically safe 0/4-20mA output
    • Three status relay contacts (NAMUR Contacts)
    • Two 4-20mA inputs for cross interference and external pressure compensation
    • Two flow sensor inputs
    • Internal Flow Alarm option
  • Control Unit:
    • Bright digital display reading 0-100% 02 with 0.001% resolution
    • Full autocalibration and validation facilities
    • Digital communications
    • Multi language capabilities
    • Full diagnostic and status indicators:
    • Up to six transmitters can be connected to a single control unit

Typical Applications:

  • Oxidation control reactions
  • EO, PTA, EDC
  • Catalyst regeneration
  • Hydrogen and chlorine production

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The SERVOPRO Mono Exact TCD is designed to meet the process control and product qualification needs of industrial gas producers and users. Offering our ground breaking TruRef Thermal Conductivity measurements, its performance surpasses other katharometer based TCD analysers.

  • Easy to set up and operate
  • Low maintenance
  • Extremely stable and reliable sensor
  • Eliminates Thermal Convection effects
  • RS232/RS485 serial data output
  • Modbus, Profibus, Ethernet communications

Technology Used:

  • Argon in Oxygen, Nitrogen in Air – Thermal conductivity measurement using the patented "TruRef" technology
  • Nitrogen in Argon – Thermal conductivity measurement using the patented "TruRef" technology

Features:

  • Half 19” rack footprint for benchtop, panel on 19” rack mounting
  • Can fit two MonoExact analysers in one 19” rack slot
  • Two level flow alarm
  • Digital communications - Modbus, Profibus and Ethernet
  • Alarm, fault and calibration history logs
  • Auto-validation facility

Typical Applications:

  • Product purity on air separation plant
  • Process control on air separation plant
  • Bottling/filling plant applications

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Spectrum Automation & Controls

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