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Temperature and pressure compensation.

Automatic calibration.

Easy-to-read and use interactive LCD display.

Optional Compact Flash memory card.

Automatic Range Selector.

Dual bi-directional RS-232 communications ports (optional Modbus or Ethernet).

The APHA–370 measures hydrocarbon in ambient air using a combination of a flame ionization detection (FID) method and a selective combustion system.  Therefore, the APHA-370 has the advantage of a single detector method plus the ability to perform continuous measurements, free of zero drift, for THC, NMHC and CH4. 

The analyzer can be operated by using the interactive LCD touch-screen or from a computer at a remote location.

All features are built into a single rack–sized instrument, including a sampling pump, a catalytic unit for selective combustion, and for generating reference gas and auxiliary combustion air.

Data is stored internally and can be transmitted to external devices via the system’s RS – 232C serial port.  Modbus and Ethernet communication is also available.  A Compact Flash memory unit is available to collect and store data for off-line analysis, or in stand-alone mode. 

The APHA-370 comes in a rugged 19-inch case containing Horiba’s “high performance & low maintenance” design. 

Ranges: 0-50 ppmC; automatic or user-selectable other ranges available

Lowest detection limit: 0.022 ppmC

Response time: <60 seconds

Zero drift: ±0.05 ppmC/week at lowest range

Span drift: ±0.5% F.S./week