Connecting And Replacing Gas Cylinders - Honeywell ENCAL 3000 Hardware Manual

6.5.3

Connecting and replacing gas cylinders

Regular automatic calibration/adjustment with a calibration gas is required for the
EnCal 3000 to operate correctly. A gas cylinder containing the calibration gas mixture is
required for this purpose. A gas cylinder containing helium or argon to act as the carrier
gas is also required for operation. These gas cylinder should be replaced as soon as the
outlet pressure can no longer be held at a stable level. This will generally take place at
around 0.5 MPa, depending on the regulator. The cylinder pressure should be
monitored, for example with a pressure gauge or contact pressure gauge. Further
options and details about the calibration gas mixture and carrier gas can be provided by
your TAC on request.
Some situations make it necessary to connect additional gas cylinders, for example for
a verification measurement. This work must be carried out as described in the steps
below.
A suitable pressure reduction is required to connect a gas cylinder to the calibration gas
inlet of the EnCal 3000 . Honeywell offers prefabricated panels with high pressure
reductions for this purpose.
Steps to connect the gas cylinder (parts marked with an asterisk (*) are not necessarily
included in the delivery and must be obtained before starting the work; use suitable
standard-compliant types only)
Observe the generally accepted rules of engineering for handling gases during all work
as described. Surfaces which come into contact with gas must be free of grease, oil,
solvents and other impurities.
EnCal 3000 Hardware Manual
Always follow the steps of the cylinder change according to local regulations and
the working steps in the Operating Instructions. Suivez toujours les étapes du
changement de cylindre établies selon les normes locales en respectant les étapes
CAUTION
de travail inscrites dans les instructions de ce manuel .
Failure to comply may result in substantial damage to the device or the station. Le
non-respect de ces étapes peut entraîner des dommages importants à l'appareil ou
au système!
Take action to prevent dirt and/or moisture getting into the device during
the replacement process.
ATTENTION
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HARDWARE INSTALLATION
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