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Reference Manual
00809-0100-4832, Rev AA
October 2004
Rosemount 3095FC
www.rosemount.com
Section 4 Calibration
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-1
Calibrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-1
Verify Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-6
OVERVIEW Once startup is successful and configuration is complete, it is necessary to
calibrate the 3095FC to meet the requirements of the application. The
following section details the procedure for calibrating the 3095FC and the I/O.
Once calibration is complete the 3095FC can be placed into operation.
NOTE
When the enclosure end caps are unscrewed, local calibration or monitoring
of the 3095FC through its LOI port must be performed in a non-hazardous
area. Performance of these procedures in a hazardous area could result in
personal injury or property damage.
CALIBRATE
3095FC Use the Rosemount User Interface Software to calibrate as follows:
1. Launch the Rosemount User Interface Software and connect to the
3095FC.
2. Select the Meter > Calibration. The current reading displays under
each meter input as the Freeze Value. The 3095FC uses these
values in the flow calculations while calibrating the points.
3. Click Freeze. If necessary, create a calibration file.
4. Isolate the device from the process by opening the by-pass valve on
the valve manifold prior to isolating the device from the process (to
protect the sensor module). This keeps one side of the differential
sensor from being subjected to high pressure while the other side has
no pressure applied. This is required when calibrating either DP or
SP. See Figure 4-1.
5. To calibrate the pressure input, setup the pressure calibrator and
make the necessary connections to the device.
6. To calibrate the temperature input, disconnect the RTD sensor and
connect a decade box (or comparable equipment) to the RTD
terminals of the 3095FC.
7. Click Calibrate under the desired input to calibrate DP, SP, or
Temperature. This displays the Set Zero calibration window.