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36 Micro Motion
®
Model 1500 Transmitters with the Filling and Dosing Application
Optional Transmitter Configuration
6.4.1 About special measurement units
Special measurement units consist of:
• Base unit – A combination of:
- Base mass or base volume unit – A measurement unit that the transmitter already
recognizes (e.g., kg, m
3
)
- Base time unit – A unit of time that the transmitter already recognizes (e.g., seconds, days)
• Conversion factor – The number by which the base unit will be divided to convert to the
special unit
• Special unit – A non-standard volume flow or mass flow unit of measure that you want to be
reported by the transmitter
The terms above are related by the following formula:
To create a special unit, you must:
1. Identify the simplest base volume or mass and base time units for your special mass flow or
volume flow unit. For example, to create the special volume flow unit pints per minute, the
simplest base units are gallons per minute:
• Base volume unit: gallon
• Base time unit: minute
2. Calculate the conversion factor using the formula below:
Note: 1 gallon per minute = 8 pints per minute
3. Name the new special mass flow or volume flow measurement unit and its corresponding
totalizer measurement unit:
• Special volume flow measurement unit name: Pint/min
• Volume totalizer measurement unit name: Pints
Names can be up to 8 characters long.
4. To apply the special measurement unit to mass flow or volume flow measurement, select
Special from the list of measurement units (see Section 4.4.1 or 4.4.2).
6.4.2 Special mass flow unit
To create a special mass flow measurement unit:
1. Specify the base mass unit.
2. Specify the base time unit.
3. Specify the mass flow conversion factor.
4. Assign a name to the new special mass flow measurement unit.
5. Assign a name to the mass totalizer measurement unit.
ConversionFactor
x BaseUnit(s)[]
y SpecialUnit(s)[]
---------------------------------------------=
x BaseUnit(s)[]y SpecialUnit(s)[]=
1 (gallon per minute)
8 (pints per minute)
------------------------------------------------------- 0.125 (conversion factor)=