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7.1 Requirements for commissioning and operation
All the safety and warning information in chapters before has been complied with and
the device has been installed and connected as described before. There is no conden-
sation in the device. If you are in any doubt, wait for around 12 hours or contact your
TAC.
CAUTION
Refer to the regulations for explosion protection and the safety information,
particularly for commissioning the device in a potentially explosive atmosphere
.
Requrirements for gas connections:
• Make sure the helium cylinder is tightly secured to the wall and the regulators
are tightly mounted on the cylinder. Check the helium and Argon quality (5.0 –
equivalent to Zero Grade classification - or better). Do not connect yet the
tubing to the helium inlet at the EnCal 3000. Open carefully the helium
regulator and check the helium pressure at the outlet of the regulator. Adjust to
5.5 barg (80 psig). Purge the tubing before connecting to the EnCal 3000 for
about 30 s. Make the connection with Helium inlet. Check for leaks.
• Make sure the cal. gas cylinder is tightly secured to the wall and the regulators
tightly mounted on the cylinder. Check the cal. gas certificate. The tube should
be flushed once before it is connected to the Encal3000 with a non-flammable
gas like the carrier gas Helium. Open carefully the cal. gas regulator and check
the cal. gas pressure at the outlet of the regulator. Adjust to 1-4 barg (15-57
psig). Purge the tubing before connecting to the EnCal 3000 for about 30
seconds. After the connection a check for leaks is required.
• Check the stream gas pressure at the connection point with the EnCal 3000.
Adjust to 1-4 barg (15-57 psig). Purge the tubing before connecting to the
EnCal 3000 for about 30 s. Make the connection with inlet STR1. Check for
leaks. (calibration is already connected in the section above)
• Make a careful leak check of the total system.
• Make sure that the sample gas flow is nowhere blocked. To be able to
guarantee this the Encal3000GC has to use a separate Vent line which doesn’t
become blocked by any kind of restriction. The Vent lines PV and SBV can be
combined to one vent line.
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