Fisher-Rosemount 3095FT, Руководство пользователя

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Rosemount Model 3095FT HART Flow Transmitter
4-28
c. If using a vacuum pump, pull a vacuum to both the low and
high sides of the transmitter, then enter the low value as the
trim value, set the units, then select Ok.
OR
If using a barometer, enter the barometric reading as the Trim
Value, select the units, then click Ok.
d.Wait for the Measured Value to stabilize, then click Ok.
The User Interface then displays the SP slope screen.
2. Trim SP Slope (Span).
a.Using the dead-weight tester, apply the desired high pressure to
both the low and high sides of the transmitter.
b.Enter the high value as the Trim Value, select the units, then
click Ok.
c. Wait for the Measured Value to stabilize, then click Ok.
3. Trim DP Offset (Zero).
a.Select Maintenance, Transmitter, Sensor Trim to display the
Sensor Trim Select screen.
b.Select DP and Offset & Slope, then select Ok to display the
“Sensor Trim: Enter Value” screen.
c. Using the dead-weight tester, apply the desired low pressure
value to the high side of the transmitter, enter the low value as
the trim value, select the units, then click Ok.
NOTE
If zero is the desired low value, do not use the dead weight tester.
Instead, enter zero as the trim value, select the units, then click Ok.
d.Wait for the Measured Value to stabilize, then click Ok.
The User Interface then displays the DP slope screen.
4. Trim DP Slope (Span).
a.Using the dead-weight tester, apply the desired high pressure to
the high side of the transmitter.
b.Enter the high value as the Trim Value, select the units, then
click Ok.
c. Wait for the Measured Value to stabilize, then click Ok.
FIGURE 4-17. Sensor Trim Apply
Condition Screen.
3
0
9
5
-3
09
500
23