Chapter 3: Operation; Introduction; Normal Operation - GE OptiSonde User Manual

Introduction

Normal Operation

Operation
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 3-4. Complete programming instructions
are given in Chapter 4.
•
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 5, Maintenance.
Normal operation of the OptiSonde is very simple. First, apply power
to the wall-mount unit. For the benchtop unit, switch the main power
switch on the rear to ON (I).
The OptiSonde begins its power-up sequence, which lasts about a
minute. The unit's software version is displayed on the initial screen,
"Initializing". Next, the OptiSonde performs an
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. "AUTO CYCLE" or "PACER" appears on the
status line.
Once the balance cycle is completed, the unit displays "Acquiring"
until it reaches steady state. The word Control appears on the status
bar at the top of the screen.
The sensor can be controlled using the keys 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. To control the sensor,
ENT
press the key. (If the OptiSonde keys are locked, press the
ENT
key, followed by the
AUTO
ESC
key, and then press the
October 2007
or a PACER
ESC
key again.)
3-1