Configuration and Use Manual 71
Optional Configuration
Required Configuration Optional ConfigurationUsing the TransmitterFlowmeter Startup Required Configuration Optional ConfigurationUsing the TransmitterFlowmeter Startup Required Configuration Optional ConfigurationUsing the TransmitterFlowmeter Startup Required Configuration Optional ConfigurationUsing the TransmitterFlowmeter Startup
8.2.1 Using the Gas Wizard
The Gas Wizard is used to calculate the standard density of the gas that you are measuring.
To use the Gas Wizard:
1. Click
ProLink > Configure > Flow.
2. Click the
Gas Wizard button.
3. If your gas is listed in the
Choose Gas dropdown list:
a. Enable the
Choose Gas radio button.
b. Select your gas.
4. If your gas is not listed, you must describe its properties.
a. Enable the
Enter Other Gas Property radio button.
b. Enable the method that you will use to describe its properties:
Molecular Weight,
Specific Gravity Compared to Air, or Density.
c. Provide the required information. Note that if you selected
Density, you must enter the
value in the configured density units and you must provide the temperature and pressure at
which the density value was determined.
5. Click
Next.
6. Verify the reference temperature and reference pressure. If these are not appropriate for your
application, click the
Change Reference Conditions button and enter new values for
reference temperature and reference pressure.
7. Click
Next. The calculated standard density value is displayed.
• If the value is correct, click
Finish. The value will be written to transmitter
configuration.
• If the value is not correct, click
Back and modify input values as required.
Note: The Gas Wizard displays density, temperature, and pressure in the configured units. If required,
you can configure the transmitter to use different units. See Section 6.4.
8.3 Creating special measurement units
If you need to use a non-standard unit of measure, you can create one special measurement unit for
mass flow and one special measurement unit for volume flow. The special measurement unit for
volume flow can be defined for liquid volume measurement or gas standard volume measurement.
8.3.1 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, m3, l, SCF)
- 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 – The non-standard volume flow or mass flow unit of measure that you want the
transmitter to use when reporting process data
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