Ion Science Hydrosteel 6000 - Manual (Page 28)

Hydrosteel 6000 MANUAL Ion Science Ltd
Page 28 of 39
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Routine maintenance
3) Connect short flexible sample tube from hydrosteel 6000 inlet to the top port on the flow meter.
4) Determine the flow by reading the tube markings from the middle of the float. The reading should be
between 40 and 55 indicating that the instrument flow is correct.
5) If the reading is outside the limits stated above, retest the flow after checking that all connections
have been made securely, and are leak free.
6) If the unit is still reading outside the limits the unit will need to be returned to ISL for service and
calibration.
Sticking floats. There is limited clearance between the float and the inside of the tube. In some cases flow
tubes are found t
o ‘stick’ after transport or long periods in storage due to condensation resulting from
temperature changes. It is advised to blow clean dry gas through the meter to free the float.
Hydrogen gas test

The location for carrying out this test must have an ambient atmosphere that is distant from sources
of hydrogen release to the atmosphere.

Because the flood leak unit contains a low concentration of hydrogen gas it is important that the air
in the environs of the calibration equipment is well ventilated.
The temperature in the environs should be stable and the Hydrosteel equilibrated to the ambient
temperature.