Emerson 2200S User Manual

28

This section provides information that may be useful before and during configuration.

Before beginning configuration, you may need to disable write-protection. To do this:

•

Using ProLink II, click 

, then ensure that the 

write-protection option is disabled.

•

Using the Communicator, select 

.

•

Using the display:

a.

Enter the display menu system.

b.

Enter the off-line maintenance menu. 

c.

Select the Config menu and scroll to 

.

d. Ensure that the Lock option is disabled. 

For more details on the display menu sequence, see Figures 2-13 and 2-14.

Default values and ranges for the most commonly used parameters are provided in Appendix A.

If you are using ProLink II or the Communicator, you can restore the factory configuration to return 
to a known state. To do this:

•

Using ProLink II, click 

, then click 

.

•

Using the Communicator, select 

.

All configuration parameters will be rewritten. 

When you connect a digital multimeter (DMM) to the I/O wiring, it reads 
13.5 mA. At the mA receiving device, you see a value of 7.2 mA. You 
don’t know if you have an adapter-barrier or if respanning is 
implemented in the DCS. Is there a problem? 

1. Convert 13.5 mA to the corresponding value on the 4–20 mA scale:

2. Compare and interpret the results: 7 vs. 7.2.

In this case, you probably do not have a configuration or wiring problem 
but you may want to perform an mA output trim.

X

13.5

10

–

(

) 2

×

=

X

7

=