The Signal Group’s 821S Gas Divider enables the users of gas analysers to test the linearity of their instruments – simply, quickly and accurately. The 821S has ten identical capillaries and a precision balance regulator. The span gas can be selected to flow through a number of those capillaries with the diluent flowing through the remainder, to produce a ratio.
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• Extremely reliable repeatability performance of +/-0.5% of point
• Simple to operate
• Remote control allowing automated instrument linearity auditing and calibration
• UKAS and NIST calibration available
• Remote control audit software available
• Ideal for regulated gas analyzer auditing and calibration e.g. QAL2 US EPA CFR40 Part 1065
• Compliant with international standards
| Agricultural emissions monitoring
Automotive Biogas Biological process monitoring Biomass combustion monitoring Boiler and Combustion Performance Boiler/stove emissions compliance Calibration/Audit Carbon capture and storage (CCS) Catalyst Research Combustion efficiency Combustion emissions monitoring Combustion research Compliance monitoring Container leakage control/monitoring Continuous emissions monitoring (CEM) Controlled atmosphere storage Direct Reduction Iron (DRI) process emission monitoring |
Engine Exhaust
Ethylene production Fermentation monitoring Flue gas emissions monitoring Fuel cell analysis Gas purity Gas turbine exhaust emissions Linearity Checking Mining Modified atmosphere packaging (MAP) NOx converter efficiency testing NOx emissions monitoring Process control Process Emission Monitoring Scrubber efficiency Source emissions Toxic Gas Measurement Vehicle emissions |
DILUTION STEPS: 0, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100% concentration of gas to be diluted.
PRECISION OF EACH STEP: Within 0.2%.
UNCERTAINTY: Within 0.5% of selected step.
OUTPUT GAS FLOWRATE: 1 litre/minute to 5 litres/minute.
INPUT GAS PRESSURES: zero gas: 2.5 bar, span gas: 2 bar.
CORROSION RESISTANCE: all wetted parts are 316 stainless steel or Nitrile.
PRESSURE BALANCE: electronic transducer with front panel gauge displaying pressure balance.
REMOTE CONTROL: optional RS232 interface.
REMOTE CONTROL SOFTWARE: optional software suite to allow fully automated test and relinearization of Signal series 4 analysers.
POWER REQUIREMENTS: 220-250V AC or 110-120V AC.
SGS, the world’s leading testing, inspection and certification company, has been using Signal Group 821S Gas Dividers at its laboratory near Munich in Germany since
For the last 20 years, Powrmatic a leading British manufacturer of HVAC equipment, has been using Signal Group analysers to check the regulatory compliance of
There are two main options for gas analysis in industrial processes or emissions; the analyser can be located inside the gas stream (in-situ), or a
Company Registration Number 01369865 • Vat Number GB296290719
