Unity-Air Server-Xr Pre-Installation Check List; Minimum Computer Specification For Unity-Air Server-Xr Control; Gc Equipment Requirements; Access Into The Gc Oven - Markes International UNITY-Air Server-xr Installation Manual

2. UNITY–Air Server-xr Pre-installation Check List
2.1 Minimum computer specification for UNITY–Air Server-xr control
UNITY–Air Server-xr software will run on most 32 and 64-bit versions of Windows®. However, use of
currently supported versions of Windows is strongly recommended.
The minimum PC specifications are:
CPU 2 GHz Pentium (or equivalent)
RAM 1 GB
Free Disk Space 40 MB (for installation)
Operating system Windows 7 (32 & 64 bit)
Minimum resolution 1024 x 768
Other requirements Windows compatible keyboard and mouse, one free serial port or
USB port.
NOTE: If the UNITY–Air Server-xr is to be installed with additional
accessories e.g ULTRA-xr, check the USB requirements of the
accessories before installation.
2.2

GC equipment requirements

UNITY–Air Server-xr is usually connected to a gas chromatograph configured with appropriate conventional
or mass spectrometer (MS) detectors. No conventional GC injector is required for UNITY–Air Server-xr
operation. Ready and external start connections are required on the GC.
2.2.1

Access into the GC oven

The heated transfer line is lined with 0.25 mm I.D., 0.35 mm O.D. uncoated deactivated fused silica which
butt connects with the capillary analytical column inside your GC oven.
It is important that the heated and insulated portion of the transfer line extends as far as the skin of the
GC oven such that the GC oven heating begins at the point where heating of the transfer line ends. A 25
mm diameter access hole is thus required into the GC, with a 6.5 mm hole in the GC inner oven wall.
Further information is provided in Section 3.5.
2.2.2

GC configuration/parameter selection

From a GC perspective, UNITY–Air Server-xr may simply be regarded as a multipurpose, stand alone GC
injector for capillary or 1/8 inch packed columns. No conventional GC injector is required for UNITY–Air
Server-xr operation. The rest of the GC system - column, oven, data handling, detector, etc. - should be
configured and used, as per normal chromatographic practice for the analytes of interest.
If multiple applications are to be carried out or if samples are uncharacterised; for example when
monitoring unknown atmospheres, a good general purpose GC configuration comprises 25-30 m, 0.25mm
or 0.32 mm ID, 1 or 2 µm phase thickness bonded methyl silicone capillary column with a FID or mass
spectrometer detector.
Markes International Ltd
T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com
www.markes.com
QUI-1122
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