Process Gas Chromatographs Offer Lower Total Cost of Ownership0 pages

Gas Chromatograph Solutions

Emerson’s Process Gas Chromatographs Offer
Lower Total Cost of Ownership
When comparing Process Gas chromatographs and determining
the total cost of ownership, you should consider more than just
equipment cost and suitability of the application. One must factor
in installation costs, reoccurring utilities expenses (power and gas),
maintenance, and serviceability over the life of the unit. All of these
can drastically increase or minimize your actual production costs and
impact your bottom line. Here are a few things you should consider
before you purchase your next GC:

The Type of Shelter Matters

The Type of Oven Matters

Analyzer Houses

When it comes to gas chromatographs, airless ovens help to
reduce operating expenses. Emerson offers a fieldmounted gas
chromatograph with an airless oven that consumes less power and
utilities than traditional airbath ovens and takes up less space. It
also offers an explosion-proof and flameproof enclosure that allows
mounting closer to the plant, which helps to ensure an accurate
measurement.

Complete analyzer houses are the most costly option. In addition to
an expensive enclosed structure, there are significant hidden costs
associated with an analyzer house, including high shipping fees,
extensive cabling and tray requirements, increased assembly and
installation costs, high maintenance fees, more required spare parts,
and high utility and power consumption.

Figure 1 - Operating Expenses for Airless and
t
Airbath Ovens

Analyzer shelters can be one of the most substantial expenses
associated with your analytical solution. You have three options
when it comes to shelters – 1) a complete analyzer house, 2) a threesided shelter or sunshield, or 3) a fieldmounted GC with no shelter.
Emerson Process Management offers all three solutions. The right
solution for you depends on your goals for the project.

Because an analyzer house can potentially entrap hazardous gases,
additional capital expenses, including hazardous area compliance,
safety systems, and fire and gas detection systems, are often
required.

Savings Comparison

Even when analyzer houses are the right choice for you – as is often
the case for plants in extremely hot or cold climates, where the
safety and comfort of the employees is an important consideration,
field-mounted analyzers offer the flexibility to enable you to handle
changes in your analytical structure. If you need to add one or two
analyzers at a later date, field-mounted gas chromatographs allow
you to mount the new analyzers in the field without purchasing an
entirely new analyzer house.

Type of Oven

Airless gas chromatographs offer savings of more than 70 % over
airbath gas chromatographs through reduced usage of carrier gas and
calibration gas, and by requiring no utility air.

Even if your new analytical purchase includes temperature-sensitive
equipment, you can simply move one of your Emerson fieldmountable gas chromatographs into the field to make room for the
new, environmentally sensitive analyzer.