Operation
4.1 Overview
There are 4 steps involved in operating the IR7000 NDIR Gas
Analyzer:
1. Initial warm up—the analyzer must be powered up and
stabilized before introducing a sample for analysis. The
optimum warm up time is 3 hours although the instrument can
be used after 1 hour.
2. Configuring the instrument for your application using the
SETUP function. This can be done during the warm-up period
if desired.
3. Setting operational parameters via the MODE function.
4. Calibrating the instrument with zero and then span gas. Section
5 describes calibration in detail.
4.2 The SETUP Menu
Once the analyzer has been installed, gas lines connected and
electrical connections made, the IR7000 can be configured for your
application. Refer to Section 3 for installation procedures. Configuring the
instrument involves:
•
Entering span gas concentration(s)
•
Activating automatic calibration function and frequency
• Setting
chart
recorder or output ranges
•
Entering alarm set points
•
Selecting Cal Delay (flush time)
These parameters are entered into the instrument by accessing the
SETUP menus from the front panel. See Figure 4-1. They can be entered
in any order.
To enter setup information into the instrument press and hold in the
SETUP button. This brings you to the 1st SETUP submenu. Make your
selection between the available options, or change the value for that