Gas Pressure Specifications; Air Quality; Making The Test Station Purge Connections - TA Instruments ARES-G2 Getting Started Manual

Gas Pressure Specifications

Pressure to the various components can be viewed on the Status tab of the instrument touch screen.
• Transducer:
• Motor:
• FCO Heater Air:

Air Quality

It is critical that high-quality, clean, dry air be supplied to the test station at all times. Any particles present
in the air must be smaller than 5 microns. Since the motor and transducer use air bearings, larger particles
in the air can easily damage the delicate high precision bearing surfaces of these components. Damage to
the bearing surfaces may result in faulty measurements, and if significant enough, the damage may require
the replacement of the entire motor or transducer.
The dew point of the supplied air should be 10°C or lower. We highly recommend installing the optional
air dryer/filter between the test station and the air supply. If your air supply has excessive moisture levels,
which result in the immediate condensation into water, a pre-air dryer system will be required. With air
dryer installed the dew point drops to below –10°C.
Because of the critical nature of the air supplied to the instrument, and the potential for expensive damage
through mishandling, we highly recommend that you inform your laboratory manager, or compressor
maintenance personnel, of your instrument requirements in detail. You should also ask to be informed
before any air supply interruption, or compressor maintenance, so that you can properly shut down and
protect the test station. Typically after any compressor maintenance, there will be some residual particu-
lates and moisture present in the supply lines. You should disconnect the air from the test station input (or
air dryer) and purge the lines, before re-powering your instrument.
To quickly determine if there is an interruption in the air supply, we have found that it is helpful to install a
pressure gauge before the air dryer. An oil-less compressor system is recommended as well.

Making the Test Station Purge Connections

CAUTION: Make sure there is no power going to the power supply unit while making the connec-
tions described here. Turn the power switch to the off position.
MISE EN GARDE: Assurez-vous que le bloc d'alimentation électrique n'est pas alimenté en courant
pendant le réglage des connexions décrites ici. Placez l'interrupteur d'alimentation sur la position
d'arrêt.
Follow these instructions to connect the oven and the ARES-G2 test station
1 Locate the purge line going to the oven. Push this fitting into the port labeled "Oven Purge." This is an
output line from the test station that provides purge air to the oven.
2 Locate the line going to the oven's gun heaters. Connect this to the port labeled "Gun Heaters." This is
an outlet line from the test station to supply the oven with air or N2 gas.
ARES-G2 Getting Started Guide
40 psi
60 psi
30 psi with oven on.
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