Emerson 2200S User Manual

42

3. If you do not know the standard density of your gas:

a.

Click the 

 button.

b.

Click 

 and check the list. 

c.

If your gas is listed, select it and click 

.

d. If your gas is not listed, click

 and provide the required 

information. You can describe your gas by molecular weight, its specific gravity, or 
density. If you use density, you must enter the density value in the configured density units 
and you must provide the temperature and pressure at which the density value was 
determined. When you are finished, click 

.

e.

Verify the reference temperature and reference pressure. If these are not appropriate for 
your application, click 

 and enter new values for reference 

temperature and reference pressure.

f.

Click 

. The calculated standard density value is displayed. 

•

If the value is correct, click 

. The value will be written to transmitter 

configuration.

•

If the value is not correct, click 

 and modify input values as required.

If the volume or GSV flow measurement drops below the configured volume or GSV flow cutoff, the 
transmitter will report a value of 0 for volume flow or GSV flow.

Note the following:

•

If Volume Flow Type is set to Liquid:

•

The volume flow rate is affected by the density cutoff. Accordingly, if the density drops 
below its configured cutoff value, the volume flow rate will go to zero even if flow is 
present and the volume flow rate is above the volume flow cutoff.

•

The volume flow rate is not affected by the mass flow cutoff.

•

If Volume Flow Type is set to GSV, the volume flow rate is not affected by either the density 
cutoff or the mass flow cutoff.

•

The volume or GSV flow rate reported via the mA output may also be limited by the AO 
cutoff. See Section 6.2.3 for more information.

To configure the volume flow cutoff or GSV flow cutoff:

•

Using the Communicator, select 

.

•

Using ProLink II, click 

.