Nova Analytical Systems Inc. Analyzers for Landfill Site Model 902A

The Nova 900 Series analyzers have been designed for monitoring recovered and processed gases from landfill and biogas sites. This equipment continuously removes moisture from the wet sample gas without the need for cooling water, compressed air, or failure-prone thermoelectric elements. The 900 Series comes complete with pre-filter, sample pump, flow meter, compression-style moisture removal system, H2S filter, PTFE liquid block, long-life O2 sensor, infrared CO2/CH4 detector, low flow sensor, alarm relay contacts, and 4-20mA outputs for each gas measured. The sensors are mounted in a temperature controlled heated box to reduce drift due to ambient temperature swings.On the B ('Cal Now') and C (Full Autocalibration) models, all calibration functions are controlled through the display rather than manual potentiometers. The C model includes additional helpful information for effective analyzer preventative maintenance. The C model has timed alerts that will appear on the display when a filter is ready to be changed. The alert can either be 'Accepted' if the filter is changed, or 'Acknowledged' if there is no immediate need. Regular maintenance of filters are critical to the long term reliability of the analyzer. Diagnostics and troubleshooting information are also included in the display interface of the B and C models. This assists operators to quickly determine the cause of an alarm and get the analyzer back on-line. Spare part numbers relevant to the alarm are included in the display.