Moore Industries TDY, Руководство пользователя

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TDY
Demand Moore Reliability 17
Scaling the Output
The TDY can be configured to scale its 4-20mA
output to offset the performance or calibration of other
instruments in the process loop.
The instructions assume that the Configuration
Program has been loaded successfully (page 6).
Moore Industries also suggests saving the initial
settings resident in the transmitter before making any
changes (refer to “Keeping What You’ve Got Safe”,
page 9).
To set the output scaling for the Input to the TDY:
1. Start the PC Configuration program and
connect a TDY as shown in Figure 2.
Note:
It is not necessary to connect a unit to the PC in
order to scale the output.
2. Enter the desired 0% output value (between
3.800mA and 17.400mA) in the “Zero Scale
Output” box at the lower right corner of the
screen (see Figure 5), or click and drag the
slide bar, adjacent to the box, to adjust the
value for 0% as desired.
3. Enter the desired 100% output value (between
7.800mA and 21.400mA) in the “Full Scale
Output” box, or click and drag the slide bar to
adjust the value.
Note:
The minimum difference between
0% output and 100% output is 4.000mA.
IMPORTANT:
Settings on the Configuration Program Screen
do not take effect in the unit until the Configuration
File is downloaded. Skip to Step 5 for instructions on
getting the settings programmed
into TDY nonvolatile memory.
4. Choose from one of these options:
a. Download the current settings into the
connected transmitter’s memory (Go to Step
5),
b. Continue creating a Configuration File by
setting other parameters, or
c. Save the current settings to a file on disk for
later downloading to a transmitter. Refer to
“Keeping What You’ve Got Safe”, starting with
Step 3 on page 9.
5. To start the Download Process, click on the
“Stop” button at the bottom-center of the
screen. This will enable the “Prog” button.
6. Click on the “Prog” button (Program), to
download the settings (specifically, the input
type and configuration) into the memory of the
connected transmitter.
CAUTION :
Any time a connected TDY is “programmed”
by downloading a Configuration File into memory,
ALL of the configuration parameters resident
in the transmitter memory at the time of the
download are OVERWRITTEN .
This includes things like, tag name,
calibration date, trim values, etc.
7. Click on the “Start” button to re-enable the
Configuration Program’s monitoring of the
connected transmitter. The status area of the
Configuration Program screen will display the
“Measurement ON” message, and will show the
trimmed values resident in memory.