GE CGA 351, Руководство пользователя

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Setup and Calibration 4-1
December 2004
Introduction
Although the CGA 351 is set up at the factory with default
operational parameter values that are suitable for many applications,
the
User Program provides a means for customizing many of the
setup parameters. Proper setup of the analyzer is very important to
ensure accurate data readings.
Generally, changes in calibration result from the aging of the zirconia
oxygen sensor. Within limits, oxygen reading errors can usually be
compensated for by making minor temperature adjustments. The
zirconia oxygen sensor should be calibrated once or twice a week for
the first month of operation and every 2–3 months thereafter.
!WARNING!
To ensure safe operation of the CGA 351, it must be
installed and operated as described in this manual.
In addition, be sure to follow all applicable local safety
codes and regulations for installing electrical equipment.
In addition, all procedures should be performed by trained
service personnel.
Follow the instructions in this chapter exactly to ensure proper setup
and calibration of the CGA 351.
Accessing the User
Program
To ensure accurate oxygen level readings and to make use of the
alarm relays, serial port and analog output, the appropriate entries
must be made in the
User Program . Follow the instructions in this
section to accomplish these tasks.
Enter the User Program by pressing the
[ESC]
key. While in the User
Program , press
[ESC]
at any time to abort the current operation.
Note:
Some submenus may be locked and will require a special key
sequence and a password for entry (see “User Program
Security” on page 3-2 of Chapter 3,
Operation ).
As an aid in programming the CGA 351, refer to the menu map,
Figure 3-2 on page 3-9. Proceed directly to the appropriate section to
set up and/or calibrate the analyzer.
Cfg
Cal
Opt Disp Use the [ ] and [ ] keys to
select
[Cal]
and press
[ENTER]
.
(NOTE: this screen shows the
[Disp]
option as already being
configured.)
POWER ESC ENTER
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