Replace Equipment - Emerson Rosemount 8800D Series Safety Manual

Note
For the Flow Simulation Function to operate, Primary Variable must be set to Velocity Flow, Volume
Flow, or Mass Flow and the write protection must be disabled (see
Procedure
1.
2.
3.
4.
5.
6.
7.
2.6

Replace equipment

If you need to replace hardware, purchase all spare parts from Emerson. You cannot use
user-supplied components on any Rosemount printed circuit assemblies.
1.
Safety Manual
Ensure that the write protection is disabled (see
Read the calculated Shedding Frequency at URV.
ProLink III Software
Navigate to Flow Simulation.
ProLink III Software
Select Internal Flow Simulation, Fixed Flow, Percent of Range and enter 50% flow.
Verify that flow rate output is 50% of full scale and Frequency is 1/2 of calculated
Frequency at URV.
a. If the flow rate output is 50% of full scale, the electronics are working properly.
b. If the flow rate output is not 50% of full scale, see the troubleshooting
information in the product reference manual.
Note
(Optional): Verify shedding frequency from internal signal generator is the same as displayed
on handheld communicator, Prolink III, or AMS Device Manager. This can be accomplished by
connecting a device such as a Fluke multi-meter with frequency measurement capability to
the test points behind the display labeled "TP1" and Ground (using the universal ground
symbol). Connect the positive lead of the digital multi-meter to TP1 and the negative lead to
the Ground lug. The frequencies should match to a plant specified tolerance that is no less
than the tolerance of the device used to read the frequency.
• If the shedding frequency is 50% of full scale, the electronics are working properly.
• If the shedding frequency is not 50% of full scale, see the troubleshooting information in
the product reference manual.
Exit simulation by selecting Normal Flow Measurement or Exit.
Enable write protection (see
Replace the hardware by contacting your local Emerson or Emerson affiliated sales
representative to obtain the correct part number.
Section
Device Tools > Configuration > Process Measurement > Sig-
nal Processing
Device Tools > Diagnostics > Testing > Flow Simulation
Section 2.3).
Installation and commissioning
Section 2.3).
2.3).
13