Hello there. Hope this post finds you well.
Can someone please advice on how to measure the dew point of a shielding gas at the place of welding. My workshop is involved in Laser beam welding. The shielding gas comes from the pressurised cylinder. The shielding gas hose is routed through the ground trenches and reaches the welding location. Can I check the dew point of the shielding gas which could provide me tme a clue about the effectiveness of shielding gas delivery system.

Any help shall be highly appreciated.
Best regards.
Waqas