87-900-073-01(B)
PHD-4 capillary leak
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Page 1: ...160 psig The calibration is obtained by comparing the Helium concentration generated by the capillary leak in the provided calibration chamber with the actual reading of PHD 4 and correcting this one if necessary The value of the Helium concentration is of the order of 100 ppm for a reservoir pressure of 100 PSI 7 bar and is specified in the calibration curve supplied with each unit NOTE The suppl...
Page 2: ...r a few seconds the display will be as show 0 C A L 6 Read on the capillary leak gauge the actual Helium pressure in the bottle 7 Using the pressure concentration curve attached to the Helium bottle neck determine the actual concentration value in ppm N B Use the pressure concentration curve plotted for your PHD 4 typology 8 Pressing SENS down button or MODE up button pushbuttons correct PHD 4 rea...
Page 3: ...nded A rubber hose should NOT be used 5 STORAGE Capillary leaks are subjected to clogging and must be kept clean and dry Store in an air tight container when not in use Care should be takenthat the end of the capillary tube is not exposed to oil and dirt Recalibration of the gauge is recommended on an annual or biannual basis depending on the severity of the environment in which the leak is being ...
Page 4: ...87 900 073 01 B PHD 4 capillary leak Page 3 3 ...
