Process gas analyzers require regular maintenance, especially of those parts that come into contact with the process gas. The intervals for the service depend very much on the type of application, the type of analyzer and the properties of the process gas.
Usually it makes sense that the simpler maintenance tasks (e.g. automatic calibrations, changing filters, …) are performed by the user (of course, after a training of the service personnel). The interval for the preventative service can be chosen based on experience with similar applications or by analyzing analyzer performance after some time of operation. Central data acquisition and recording of events and analyzer diagnostic data in operator panels with SCADA functions can be instrumental for the determination of optimal service intervals, thus helping to minimize maintenance costs and analyzer downtime.