Emerson 3051S Dokumentacja Strona 70

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60
Reference Manual
00809-0100-4001, Rev JA
Section 3: Configuration
November 2012
Configuration
To configure the display with a Field Communicator, perform the following procedure:
1. Change the Meter Type to “Custom Meter” by using the Fast Key sequence under “LCD
display configuration for 4-20 mA HART only” on page 59.
2. Next from the ONLINE screen, Select 1 Device Setup, 3 Basic Setup, 7 Meter Options, 2
Meter Options, 2 Custom Meter Setup.
3. To specify decimal point position:
a. Select 1 Sel dec pt pos. Choose the decimal point representation that will provide the
most accurate output for your application. For example, when outputting between 0
and 75 GPM, choose XX.XXX or use the decimal point examples below:
XXXXX
XXXX.X
XXX.XX
XX.XXX
X.XXXX
Note
Make sure the selection has been sent and the decimal point has changed before proceeding to
the next step.
b. SEND
4. To specify a custom upper range value:
a. Select 2CM Upper Value. Type the value that you want the transmitter to read at the
20 mA point.
b. SEND
5. To specify a custom lower range value:
a. Select 3 CM Lower Value. Type the value that you want the transmitter to read at the
4 mA point.
b. SEND
6. To define custom units:
a. Select 4 CM Units. Enter the custom units (five characters maximum) that you want the
display to display.
b. SEND
7. To choose the transmitter transfer function for the display:
a. Select 5 CM xfer fnct. Enter the transmitter transfer function for the display. Select sq
root to display flow units. The custom meter transfer function is independent of the
analog output transfer function.
8. Select SEND to upload the configuration to the transmitter.
See “Safety messages” on page 39 for complete warning information.
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