KIT-EMM300
Instructions
10
Note
Changing the LRV affects the URV. If the LRV should be tested against ATM, check the
Set to
ATM
checkbox. When
is Set to ATM
is pushed, the LRV is non-editable.
•
URV
- Configure the upper range value of transmitter.
•
Closed Loop
:
o
ON
- Automatically sets the pressures to the LRV and URV values and dwells for the time specified in
the Dwell Time field. The measurements are taken from the amount of time shown in the Averaging
Time field.
o
OFF
- Trim the function manually.
•
Dwell Time:
This is a user-configurable amount of time for how long the pressure dwells before measurements are
taken.
Note
Once at the setpoint and the pressure stabilizes (
Ready
is shown), the dwell countdown timer
starts. Once the dwell is finished, if closed loop was used, then the measurement is taken and
the controller continues to the next setpoint. If closed loop is OFF, push
continue
to go to the
next setpoint.
3. In the Trim by Re-ranging main menu, push
Start
to start trim.
4. If the
Closed Loop
was ON, the trim process automatically progresses without user interaction. Otherwise,
the
Closed Loop
is OFF.
5. Push
Trim
to trim and change to next range.
6. If necessary, push Lower Range or Upper Range, as necessary.
7. When the trim process is finished, follow the display guide Trim Complete, push
Exit
to exit.
Note
This trim process changes the upper and lower range values to compensate the sensor’s
error.
Write LRV/URV
To change the working range of a HART Transmitter by changing the LRV or URV:
1. Select
Write LRV
and
URV
.
2. In the change menu, input the new LRV and URV values.
Note
LRV cannot be set to lower than Lower Transmitter Limit (LTL) and the URV cannot be set
greater than the Upper Transmitter Limit (UTL).
3. Push
Send
to save the new values.
4. Push
Exit
to exit.
