Ion Science Hydrosteel 6000 - Manual (Page 29)

Hydrosteel 6000 MANUAL Ion Science Ltd
Page 29 of 39
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Routine maintenance
This is performed using a flood leak of 100 ppm of hydrogen gas in air mixture. This gas has a tolerance of

10 ppm. The Hydrosteel provided readings in flux units of pl/cm
2
/s or nl/ cm
2
/s.
With the LT probe selected readings should be between 280 pl/cm
2
/s and 380 pl/cm
2
/s.
With the HT probe selected readings should be between 2200 pL/cm
2
/s and 3000 pL/cm
2
/s.
1) Switch unit on and let it complete the stabilisation count down and zero. Note the probe type
indicated by the analyser display (‘LT’ or ‘HT’).
2) Ensure that the temperature reading in the bottom right hand corner is not flashing. This indicates
that the sensor in the Hydrosteel is currently undergoing a temperature change, which may create a
temporary shift in the background flux.
3) Ensure that the flux reading is stable and approximate zero (<5pl/cm
2
/s for LT probe or 30 pL/cm
2
/s
for HT probe selection). In exceptional circumstances base line drift occurs due to the continuous
presence of hydrogen background.
4) Manually fit the regulator to the gas bottle to finger tightness.