Fisher-Rosemount 3095FT, Руководство пользователя

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Using the Model 3095FT User Interface Software
5. Trim PT Offset (Zero).
a.Select Maintenance, Transmitter, Sensor Trim to display the
Sensor Trim Select screen.
b.Select PT and Offset & Slope, then select Ok to display the
“Sensor Trim: Enter Value” screen.
c. Insert the RTD probe into an ice bath, enter the low value as
the Trim Value (32 °F or 0 °C), select the units, then click Ok.
d.Wait for the Measured Value to stabilize, then click Ok.
The User Interface then displays the PT slope screen.
6. Trim PT Slope (Span).
a.Insert the RTD probe into a hot oil bath.
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.
Sensor Trim Procedure (For Field Calibration)
To correct mounting position effects, field calibrate the Model 3095FT
after installation:
1. Establish communications (see Page 4-4).
2. Enter either the system administrator or a maintenance level
password.
3. Perform a Trim DP Offset (Zero).
a.Select Maintenance, Transmitter, Sensor Trim to display the
Sensor Trim Select screen.
b.Select DP and Offset Only, then select Ok to display the “Sensor
Trim: Enter Value” screen.
c. Enter the low value as the Trim Value, select the units, then
click Ok.
d.Wait for the Measured Value to stabilize, then click Ok.
4. (Optional) If a barometer that is at least 4 times as accurate as
the Model 3095FT AP sensor is available, perform an SP Offset
(Zero).
a.Select Maintenance, Transmitter, Sensor Trim to display the
Sensor Trim Select screen.
b.Select SP and Offset Only, then select Ok to display the “Sensor
Trim: Enter Value” screen.
c. 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.