Emerson Micro Motion LNG Series, Configuration And Use Manual

Page: 33 / 100

Options for Gas Standard Volume Measurement Unit
(continued)
Table 4-3:
Unit description ProLink III label
Standard cubic feet per hour
SCFH
Standard cubic feet per day SCFD
Standard cubic meters per second
Sm3/sec
Standard cubic meters per minute Sm3/min
Standard cubic meters per hour Sm3/hr
Standard cubic meters per day
Sm3/day
Standard liter per second SLPS
Standard liter per minute
SLPM
Standard liter per hour
SLPH
Standard liter per day SLPD
Special measurement unit
special
Define a special measurement unit for gas standard volume
flow
ProLink III
Device Tools
>
Configuration
>
Process Measurement
>
Flow
>
Special Units
Overview
A special measurement unit is a user-defined unit of measure that allows you to report
process data, totalizer data, and inventory data in a unit that is not available in the
transmitter. A special measurement unit is calculated from an existing measurement unit
using a conversion factor.
Procedure
1. Specify
Base Gas Standard Volume Unit
.
Base Gas Standard Volume Unit is the existing gas standard volume unit that the special
unit will be based on.
2. Specify Base Time Unit .
Base Time Unit
is the existing time unit that the special unit will be based on.
3. Calculate
Gas Standard Volume Flow Conversion Factor
as follows:
a. x base units = y special units
b.
Gas Standard Volume Flow Conversion Factor
= x ÷ y
4. Enter the
Gas Standard Volume Flow Conversion Factor
.
The original gas standard volume flow value is divided by this conversion factor.
Configure process measurement
Configuration and Use Manual 27