1 use with heated delivery lines, 2 rack mounting, 2 electrical installation – INFICON Composer Gas Concentration Controller User Manual
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Composer Operating Manual
1.10.1.1 Use with Heated Delivery Lines
The Transducer may be attached to Delivery Lines heated to a maximum of 60
°C. The temperature of the Transducer’s Resonant Chamber is controlled to a
maximum of 65 °C. This temperature is a user determined parameter. It takes
less than 15 minutes for the Resonant Chamber to reach temperature and up
to 1 hour for maximum stability. Normal temperature excursions are
± 0.05 °C
or less.
NOTE: It is recommended that the Resonant Chamber’s temperature be set
slightly higher than the temperature of the Reactor’s inlet and outlet
tubing and about 5 °C higher than the Ambient. This is to insure that
Precursor will not condense within the Resonant Chamber or the
Transducer’s inlet or outlet tubing.
Operation of the Transducer at a temperature slightly higher than the Reactor’s
inlet and outlet tubing will not cause any problems with material condensing
downstream. The reason for this is, (assuming the precursor is not already
condensing in the Reactor’s inlet tubing), it will become even less saturated in
the slightly higher temperature of the Transducer. The only way for
condensation to subsequently occur in the Reactor’s line leaving the
Transducer is for the temperature of the outlet tubing to be less than the
temperature of the Reactor’s supply tubing to the Transducer and below the gas
mixture’s saturation (condensation) temperature.
1.10.1.2 Rack Mounting
The Controller may be rack mounted using the optional rack adapter kit’s
extender if only one Controller is used. Two Controllers mount side by side in a
standard 19" (48.26 cm) relay rack enclosure without the extender.
1.10.2 Electrical Installation
Adhere to the guidelines presented in the following sections when installing the
Composer.
1.10.2.1 Connection to Rear Panel
The long term performance of this instrumentation is dependent on the quality
of the installation. A first rate installation includes the proper assembly of the
user/OEM installed cabling. The assembly instructions for the connectors used
on this instrumentation are shown in the following sections. See
and
for specific details.