Teledyne 7500ZA operating instructions Atmospheric Pressure Correction

NDIR Gas Analyzer Specifications

Start-stop synchronization ModbusTM protocol

Contents : Read/Write parameters Read measurement conc. and instrument status

Remark : When connecting via RS-232C interface, an RS-232C ↔ RS485 converter should be used.

Atmospheric Pressure Correction:

Measure atmospheric pressure and calculate compensation (for use, exhaust port of analyzer must be at atmospheric pressure.

After atmospheric pressure correction: Zero point: Not affected.

Span point: Change is 0.5% measured value or less relative to a 1% change in atmospheric pressure.

Correction range: 700hPa-1050hPa

Teledyne Analytical Instruments 97