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P871 Empty Damping 
This parameter determines the maximum rate at which the unit will respond 
to a  decrease  in level. It  should  be set slightly higher than the  maximum 
vessel empty rate. Default = 10.000 metres/minute (32.81 feet/minute) 
System (SyS1) Menu 
The  following  three  parameters  do  not  affect  how  the  unit  performs,  but 
details,  contained  in  them,  may  be  required,  by  Pulsar,  when  making 
technical enquiries. 
P921 Enable Code 
Enables the passcode (P922), which means the passcode must be entered 
to go into program mode. If disabled (set to 0), then no passcode is 
required, and pressing ESC and ENTER button simultaneously will allow 
entry into the program mode. 
P922 Passcode 
This is the passcode that must be used to enter program mode. The default 
is 1997, but this can be changed to another value. 
P926 Software Revision 
This parameter will display the current software revision.  
P928 Serial Number 
This parameter will display the serial number of the unit.  
P930 Factory Defaults 
This parameter resets all parameter values to the original Factory Set values 
that were installed when the unit was tested, before despatch to you. 
To reset parameters, enter 1 and press ENTER, all parameters, except for 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.