Moore Industries TDY, Руководство пользователя

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TDY
Demand Moore Reliability 29
Troubleshooting the TDY
If a transmitter’s performance begins to deteriorate
and a physical check of the installation uncovers no
adverse conditions or damage, remove the offending
unit from service and re-perform the Configuration
Procedures from earlier in this manual.
Configuration Software Error
Messages
Data fields on the Configuration Main Screen can
change color or appearance in some way to indicate
that an attempt is being made to create a nonstandard
or ill-advised condition in the Configuration File.
“Zero or Full Scale Outside
Conformance Range”
Setting thermocouple input parameters to zero or full
scale values that fall outside the published ISA
thermocouple tables will cause this error message to
appear on screen.
This condition is “downloadable” to a TDY. It is
intended to provide the user with the ability to
monitor general trends on the input, functioning
within the rated accuracy whenever input is within
the conformance range, but inherently less accurate
outside the range.
“Reverse Output”
Setting the parameter for “Input Zero” numerically
above the parameter for “Input Full Scale” causes this
message in the “Output” section of the Configuration
Screen. This condition is downloadable to the unit,
and causes transmitter output to rise proportionally
in response to a drop on the input, and to fall
proportionally as the input rises.
“Table Data Invalid”
If there is a broken or loose communication wire,
ambient electronic noise, or a problem with the
memory chip inside the transmitter, this message may
appear.
To fix the condition, make sure that the desired
operating parameters are displayed on the
Configuration Screen, and click on the “Prog”
(Program) button. This should override the corrupt
configuration information in unit memory and reset the
parameters correctly.
Operating the TDY
Once configured, installed, and supplied with the
correct power, the TDY transmitter begins to operate
immediately. Depending upon environmental
conditions, it can be expected to continue to operate
unattended indefinitely.
Maintaining the TDY
Moore Industries suggests a quick check for terminal
tightness and general unit condition every 6-8 months,
depending upon the severity of conditions. Things
such as ambient vibration, corrosive atmospheres,
extreme heat or cold, etc., can play a role in
shortening the service life of any piece of electronic
equipment.
IMPORTANT:
Always adhere to any site requirements for
programmed maintenance.