821S Gas Divider

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.

Applications

Request a Quote

Key Features

• 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

Documentation

➔ Datasheet

➔ Ancillary Equipment Brochure

Technical Specification

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.

Optional Configuration

REMOTE CONTROL: optional RS232 interface.

REMOTE CONTROL SOFTWARE: optional software suite to allow fully automated test and relinearization of Signal series 4 analysers.