YOKOGAWA DPharp EJXC40A, Руководство пользователя

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<7. HART Communication>
7-30
IM 01C25W05-01EN
The following symbols are displayed on the
configuration tool.
F0713.ai
C(Function Check)
S(Out of Specification)
M(Maintenance Required)
N(No Effect)
F(Failure)
Table 8.3 shows the factory default settings.
The four groups can be edited using the HART
configuration tool.
Recall
parameters
[Root menu] → Diag/Service →
Condensed status map →
Device Status See table 8.5.
Ext dev status See table 8.6.
Diagnostic
Status 0, 1
Status group
0 to 5, 14 to
23
See table 8.3
By selecting [Device]→[Additional
Functions]→[Condensed Status] from the DTM
menu bar, four groups can be edited with using the
setting screen in below. Drag and drop an each
alarm in a designated group.
By using a simulation, display of an alarm
according to the setting can be confirmed.
During a status simulation, the status showing
that the simulation is on-going and the status
of four groups are displayed simultaneously.
7.3.2 Advanced Diagnostics
7.3.2.1 What Is the Multi Sensing Process
Monitoring Function?
The multi sensing process monitoring function
(optional code: /DG6) is a function for detecting
errors in a process environment such as
impulse line and piping using EJX multi sensing
(differential pressure, pressure, and temperature
measurement) and Yokogawa’s original diagnostic
algorithm. The following two functions are available.
■ Impulse line blockage detection
Fluctuation in differential pressure and pressure is
monitored using silicon resonant sensors to detect
the blockage condition of impulse line. For digital
remote sensor transmitters, it is possible to obtain
at which end of the impulse line blockage has
occurred.
■ Heat trace monitoring (for module 1 side only)
This function calculates the flange temperature
based on the capsule temperature and amplifier
temperature measured with the sensors on the
module 1 side transmitter in order to detect errors in
steam traces and electric heaters used to prevent
freezing in piping and impulse lines.