Carbon Monoxide Analyzer

DKK-TOA, Japan Model GFC-390

Carbon monoxide analyzer (USEPA Designation No. RFCA-0907-167) for measuring and reporting pollutant emissions in compliance with the law.

Adopts PMT on detector that directly cools cathodes. It reduces noise, compared to the old model.
A detection unit increases maintainability and reduces maintenance cost, having a structure that can maintain such components as cooling elements, PMT and reaction cells individually.
A dust filter is mounted on the panel on the front surface of the analyzer to facilitate dirt checking and filter replacement.
The optional Ethernet interface unit enables data collection and remote control via LAN.
The optional CF card records measurements recorded by an analyzer (instantaneous values and hourly average values), the status within an analyzer (temperature, pressure and flow rate), and history of zero deviations, span coefficients, alarms and events.* Data is kept as CSV files in the CF card to facilitate data editing. Various types of data (e.g. minute values, hourly values, alarms and events) are classified into year- or month-wise groups for convenient data organizing.
A CF card can record the following data volume (the device only accepts our official CF cards that are to be used exclusively for the device.
Example of storable data (256 MB): data for about 8 years (regular recording only)
The temperature is controlled with high precision for key components including detector, measurement cell and heater block. This helps reduce the effects of changes in ambient temperature.

Utilizes Non-Dispersive Infrared Detection (NDIR) or Gas Filter Correlation principles.
The offered brand and model must be US EPA certified and possess a verifiable certification number (specifically RFNA-0907-167).
Measurement range of 0–50 ppm or a wider range.
Lower detectable limit of 0.05 ppm or better.
Zero drift (24 hours) of 0.2 ppm or better.
Span drift (24 hours) of 1% of full scale, 0.5% of reading, or better.
Equipped with a standard RS232 or Ethernet (or superior) serial data communication system to control operations and report data in a manner compatible with the data collection, analysis, and reporting system.

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