Hydrogen Gas Safety; Cleaning And Decontamination; Environment Operating Conditions; Temperature - Markes International Unity 2 User Manual

 Due to the high temperatures involved in the flow path, other zones of the instrument
will be at higher temperatures during operation. These may not on visual inspection
be obvious to the user. These zones are:
o The insulation of the GC transfer line.
o Top and side covers (especially directly above the heated valve).
See Section 2 for the location of these zones.
1.4.4

Hydrogen gas safety

 Hydrogen is a colourless, odourless, highly flammable gas. Hydrogen presents a
hazard as it is combustible over a variety of concentrations at ambient temperature
and pressure. It has a low ignition temperature and is very fast-burning.
 If the user does use hydrogen as their carrier gas, then they do so at their own risk.
The user must ensure that all adequate safety precautions are taken and that the
installation of the hydrogen system is carried out in accordance with all applicable
codes and standards.
 Markes International will assume no liability for any damage or injury caused by the
use of hydrogen.
 For further advice on the use of hydrogen as a carrier gas, please contact Markes
International Technical Support.
1.4.5

Cleaning and decontamination

Please consult Markes International or your local agent for information on decontamination or the use of
cleaning agents
NOTE: Incorrect cleaning/decontamination could result in damage to the instrument.
1.5

Environment operating conditions

The instrument should be protected from conditions that could cause exposure to frost, dew, percolating
water, rain, excessive direct sunlight, etc.
Performance can be affected by sources of heat and cold from heating, air conditioning systems, or drafts.
It is advisable to operate the system in a clean laboratory environment, with minimal atmospheric
concentrations of organic vapours.
1.5.1

Temperature

Recommended operating ambient temperature range is 15 to 30°C.
1.5.2

Humidity

Recommended operating humidity range is 5 to 95% non-condensing.
Markes International Ltd
T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com
www.markes.com
QUI-1057
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