Teledyne 4040 - Methane / Nonmethane analyzer - Manual (Page 43)

Operation
Teledyne Analytical Instruments 43
Operation
4.1 Analyzer Operation
Although the Model 4040 has been programmed for your application
at the factory, it can be further configured at the operator level.
Depending on the specifics of the application, this might include all or a
set of the following procedures:
1. Setting system parameters
• Establish a security password, if desired, requiring operator
to log in
• Establish and start an automatic calibration cycle
• Choose autoranging or select a fixed range of analysis
• Set alarm setpoints and modes of alarm operation
• Calibrate analog output, select analog output source.
2. Routine operation
• Calibrate the instrument
Procedures for accessing and/or changing parameters as well as
analyzer operation are detailed in the sections to follow. In general, the
sequence of menus available on screen follows a logical course for setup
and operation. It is not required, however to follow this sequential path.
The user could, for instance, go directly to set an analysis range and then
program an offset to the current output for matching a range on the
user’s recording device. The only exception to this is when the
instrument is powered up. It will go through a warm-up period, followed
by a diagnostic self-test routine.
Note: The 4040 is always either analyzing or in a span calibration.
The analysis has 2 phases, the CH4 phase and the NMH phase,
as does the span calibration. For a detailed description of
these phases, please refer to THEORY OF OPERATION.