Cooling Water Supply (3Kw/4Kw Only); Open Cooling System (City/Well Water) - Bruker S8 TIGER Manual De Instrucciones

Introductory User Manual S8 TIGER X-ray Spectrometer
shown at the secondary dial, should be set to 500 mbar (7.4 PSI). This is the inlet pressure for the
S8 TIGER.
The flow counter tube is usually operated with the commercially widely available P-10 gas mixture. It
consists of 90 % argon and 10 % methane. The gas must be technically clean. At maximum, the impu-
rity can be 0.5 % v/v (e.g. P-10 gas - Ar 4.6 and CH4 2.5 or P-10 gas for spectrometry - Ar 5.0 and
CH4 3.5).
You should use compressed-gas cylinders with a volume of 50 l (13 gallons) and filling pressure of
about 200 bar (3000 PSI). Cylinders must be installed such that it is impossible for them to fall over.
The safety regulations for flammable gases must be observed at all times. The flow counter is used in
an open loop configuration. Therefore, a separate vent to open air must be provided for the consumed
counter gas.

Cooling Water Supply (3kW/4kW only)

The high power S8 TIGER versions, which are rated 3kW and 4kW, require heat dissipation by water.
The cooling water system may be fed with either city/well water (tap water) or a closed-circuit cooling
system. To minimize difficulties with cooling water, for example suspended solids, low pressure, or
extreme water temperature variations, an external cooling water unit with closed-circuit water re-
circulation can be of advantage.

Open Cooling System (city/well water)

In order to supply the cooling water, a connection must be made to the main water supply. The dis-
charge should occur without pressure. The layout and the recommended tubing are shown in the fig-
ure below.
Please check that the cooling water is poor in suspended matter. You are strongly advised to install a
suitable filter in the inlet line. It is recommended to connect two water filters in parallel if the water is
contaminated. Having two filters bears the advantage that the device does not need to be switched off
when one of the filters is being cleaned. Bruker AXS offers optional such a filtering system for wall
fastening (see Tab. 1-11). You need to connect piping between the supply water inlet and the instru-
ment. Connect a discharge pipe between the instrument and a drain.
1-18 DOC-M80-ZXX031 V4 – 02.2010