Metrohm NIRS Analyzer PRO - Manual (Page 33)

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13. Pull the knob on the regulator and turn it fully counter clockwise in order to set the pressure
to zero.
14. Connect the factory air to the water separator.
15. Slowly increase the pressure until a smooth flow is felt from the exhaust tube.
Normally a setting of app. 0.02 MPa (0.2 bar) is about right. The objective is to keep the temperature
somewhat below 65 °C.