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The “Clean-up” function makes it possible to eliminate any residues
of Helium inside the sensor and to obtain fast, safe reset of the
PHD-4.
Use the “Clean-up” function for faster zeroing after measurement of a
large quantity of Helium.
WARNING!
Do not start the “Clean-up” function in environments with large quantities of
helium.
Reading adjustment
The “Reading adjustment” function makes it possible to eliminate any
imprecision in reading.
Start the procedure after correctly zeroing the device in a helium-free
environment.
When requested, provide the PHD-with a known mix of
Helium/Nitrogen (possibly calibrated and certified) and correct
readout using the “ ” and “ ” keys of the specific screen page.
Follow the operating instructions provided by the HID throughout
the procedure.
PHD-4 Portable Helium Detector User Manual
Technical Information
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87-900-120-01 (F )
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User Interface
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