Zero Trim The Transmitter - Emerson Rosemount 2051 Quick Start Manual

October 2014
DP Flow example
Parameters
Channel
L_Type
XD_Scale
Note
Select only the units that are supported by the device.
Out_Scale
Low_Flow_Cutoff
DP Level example
Parameters
Channel
L_Type
XD_Scale
Note
Select only the units that are supported by the device.
Out_Scale
Display pressure on the LCD display meter
1. Select the "pressure" check box on the display configuration screen.
Step 7: Zero trim the transmitter
Note
Transmitters are shipped fully calibrated per request or by the factory default of full scale (span =
upper range limit).
A zero trim is a single-point adjustment used for compensating mounting
position and line pressure effects. When performing a zero trim, ensure that the
equalizing valve is open and all wet legs are filled to the correct level.
The transmitter will only allow 3-5% URL Zero error to be trimmed. For greater
zero errors, compensate for the offset by using the XD_Scaling, Out_Scaling and
Indirect L_Type which are part of the AI Block.
1. To use guided setup:
a. Navigate to Configure, Guided Setup, and select "Zero Trim".
b. The method will execute the zero trim.
2. To use manual setup:
a. Navigate to Overview, Calibration, Sensor Trim, and select "Zero Trim".
b. The method will execute the zero trim.
Enter data
1
Square Root
0 - 100 inH 0 @ 68 °F
2
0 - 20 GPM
inH 0 @ 68 °F
2
Enter data
1
Indirect
0 - 300 inH 0 @ 68 °F
2
0-25 ft.
Quick Start Guide
19