Siemens Set CEM CERT, Operating Instructions Manual, Page: 41 / 128

Commissioning
7.2 Commissioning
Set CEM CERT
Operating Instructions, 06/2021, A5E34491309-12
39
7.2.2 Warm-up phase
Once you have completed the preparations for commissioning, you can commission the
measuring system. To do this:
1. Switch on all fuses except the fuse of the sample gas pump.
2. Switch on the main switch.
Once the operating temperatures of the individual component have been reached (this
can take up to 60 min), the system changes to "Measure" status.
During the warm-up period, a variety of error messages may be displayed in the logbook.
These must be acknowledged later. Until the system is capable of taking measurements,
the corresponding messages are set via the digital output (invalid measurement, group
fault, function check, etc.).
As soon as the setpoint temperatures of the sampling probe, sample gas line and sample
gas cooler have been reached, switch on the sample gas pump using the associated
fuse. The sample gas pump starts up, provided that:
• No 'Fault -EC1 sample gas cooler' fault message is present
• The sample gas cooler has reached its operating temperature (approximately 4 °C).