Parr Instrument 4857 - Manual (Page 15)

4857 Reactor Controllers
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O
PERATION OF THE
4857 P
ROCESS
C
ONTROLLER
(
CONTINUED
)
Factory Defaults
Restoring the 4857 to it factory defaults is relatively simple. There are is a file on the 521M CD
which may be copied to the PC at "\Factory Defaults\factorydefaults.dev".
Opening the .dev file with CalGrafix will restore the controller settings in the 4857 Process
Controller.
Restoring Factory Default Values
1. Set the active COM port to COM7. If you are unsure of how to do this, see the section on
"Setting the active COM port" in this manual.
2. Open the CalGrafix program in the usual manner. Connect to the 4857 Controller by
clicking on the small controller faceplate icon on the menu bar, or selecting "File >>
New Instrument".
3. If the 4857 is not shown in the device box, click "browse" and select COM7.
4. When the CalGrafix program finds the 4857, select “File” >> “Open.”
5. Locate the factorydefaults.dev file on the 521M CD at "\Factory
Defaults\factorydefaults.dev". Select open.
6. CalGrafix will ask which values to write. Check the boxes of "Modules 1-3". Click OK. If you
have a 4
th
module which needs to be reset, contact Parr Technical Support .
7. CalGrafix will write the application data from the default file to the 4857.