IMP+ INSTRUCTION MANUAL 
 
44 
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 Lite for the required 
application. 
Test (tESt) Menu 
P991 Hard Test 
When this parameter is selected, the unit will test the following in turn. 
•  Display. All the segments on the LCD and the backlight are lit up, so 
you can see if they all work. Press the ENTER button, to end the test.  
•  Keys. You should press each button, to confirm it works, with a counter 
showing how many more buttons you must press. Press ESC last, as this 
will show if all keys were pressed or not. If they were not, then an error 
message is displayed. 
P992 mA Out Test 
This parameter will allow you to force a specified current on the mA output, 
to test the equipment that it is connected to, and to make sure the unit is 
working correctly. The figure you enter will be generated by the mA output.