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Changing the Passcode 
You can set the passcode to any number from 0000 to 9999. To do this, 
enter Program Mode and go to SyS1 (System) menu. Select P922 which is 
the Passcode parameter which can be changed as required. 
Resetting Factory Defaults 
If you need to restore parameters to their original factory settings, then enter 
Program Mode go to the SyS1 (System) menu and ENTER. Using the UP 
and  DOWN  buttons,  go  to  parameter  P930,  and  ENTER,  P930  is  the 
factory  defaults  parameter,  change  the  value  to  1  and  ENTER ,  all 
parameters,  with  the  exception  of  the  mA  trims,  will  be  restored  to  the 
factory  settings  (including  the  DATEM  trace)  and  on  completion  Stor 
(Store) will be displayed after which you can ESC out of this parameter and 
continue programming the IMP+ i.s. for the required application. 
Checking the Information Specific to your IMP+ i.s. 
There are some parameters dedicated to each individual IMP+ i.s., such as the 
software revision and the unit’s serial number. 
Checking the Software Revision and Serial Number 
If you need to identify the serial number of the unit or the current level of 
software in your IMP+ i.s., whilst in Run Mode press the ESC button and the 
serial  number  along  with  the  software  revision  will  be  displayed. 
Alternatively  enter  Program  Mode  and  select  SyS1  (System)  menu  and 
ENTER. Select parameter P926 to view the identity of the current firmware 
revision or P928 for the serial number of the unit.