The​ N904 is designed for simple operation and maintenance with a modular hardware and electronics architecture. A long-life stainless-steel fitted filter is used at a sample intake to effectively remove particulate matter without introducing any gas-phase measurement artifacts. Instrument operation, calibration functions, chromatogram views and data handling are all automated and controlled using the internal NumaView™ Software (NVS) interface, without the need for an external PC.​​

For remote connection to an N904 instrument, Teledyne API's (TAPI) NumaView™ Remote PC-based software provides a virtual interface, instrument controls and data downloading capability to all TAPI analyzers operating the NumaView™ Software.​​​
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