TSI Instruments PRESSURA 8630-PM, Operation And Service Manual

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Technical Section 7
Part Two
Technical Section
The PresSura controller is ready to use after being properly installed. The pressure
sensor is factory calibrated prior to shipping, and should not need adjustment. The Digital
Interface Module (DIM) is programmed with a default configuration that can be easily
modified to fit your application.
The Technical section is separated into five parts that cover all aspects of the unit. Each
section is written as independently as possible to minimize flipping back and forth
through the manual for an answer.
The
Software Programming section explains the programming keys on the DIM. In
addition, the programming sequence is described, which is the same regardless of the
menu item being changed. At the end of this section is an example of how to program
the DIM.
The
Menu and Menu Item section lists all of the software items available to program and
change. The items are grouped by menu which means all calibration items are in one
menu, alarm items in another, etc. The menu items and all related information including
programming name, description of menu of item, range of programmable values, and
how the unit shipped from the factory (default values). This manual covers two models.
The features unique to the premium unit are
highlighted in Figure 6, and are identified
as Premium model only items.
The
Calibration section describes the required technique to compare the pressure
sensor reading to a thermal anemometer, and how to adjust the zero and span to obtain
an accurate calibration. This section also describes how to zero a TSI flow
station transducer.
The
Maintenance and Repair Part section covers all routine maintenance of equipment,
along with a list of repair parts.
The
Troubleshooting section is split into two areas: Mechanical operation of the unit and
system performance. Many external variables will affect how the unit functions so it is
critical to first determine if the unit is having mechanical problems - i.e., no display on
unit, remote alarms don’t function, etc. If problems still exist, look for performance
problems (i.e.,
doesn’t seem to read correctly, display fluctuates, etc.). The first step is to
determine that the system is mechanically operating correctly, followed by modifying the
configuration to eliminate the performance problems.