GE Optica, Operator'S Manual

Page: 45 / 150

Operation 3-1
January 2006
Introduction
Operating instructions fall into three categories:
•
Normal Operation - Using the unit’s controls.
•
Setup and Programming - Customizing the unit for specialized
applications (not required for many conventional applications).
Note:
The unit is shipped pre-programmed to meet typical
requirements. The factory default settings are listed in
Table 3-2 on page 3-9. Complete programming instructions
are given in Chapters 4, 5, and 6.
•
Maintenance - Manually testing the unit’s cooling capacity,
cleaning the mirror, and other operations that might be required on
a regular basis, or when a problem is suspected, depending on the
application. Details are given in Chapter 7, Maintenance.
Normal Operation
Normal operation of the Optica is very simple. To turn the unit on,
check that the main power switch on the rear of the benchtop unit is
set to
ON
( — ), then press the right-hand side of the power switch
(located at the lower left corner on the front of the unit).
The Optica begins its power-up sequence, which lasts about a minute.
The unit’s software version is displayed on the initial screen. The
status line displays
Initializing
. Next, the Optica performs a
PACER
balance. The
PACER
balance typically requires five to fifteen minutes,
depending on the sensor chosen and the humidity of the sample gas
during the balance cycle. The status line displays
Balance Acquiring .
Once the balance cycle is completed and the unit reaches steady state,
Control
is displayed in the status bar at the bottom of the screen.
The sensor can be controlled using the softkeys to the right of the
display, shown on the screen below. The operator can manually heat
or cool the sensor, or initiate a
PACER
balance cycle.