User manual

If more than four numeric characters are typed, or the user attempts to enter a delay,
outside the limit of the unit an error message ‘Err’ will be displayed to warn the operator.
The correct entry may then be typed.
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The above refers to normal operation mode. See ‘The Dual Lock In Function’ section for
special use.
When the unit is first switched on or if ‘reset’ is depressed the unit will be initialised.
Initialising the unit does not clear any of the store locations. It does however re-start the
microprocessor and therefore the display and the output will reflect the contents of the
last store location selected and also the last function selected.
If you wish to clear all of the store locations simply key ‘D’ then ‘0’.