Ion Science SF6 P2 - Manual (Page 9)

SF6 P1 & P1:p MANUAL Ion Science Ltd
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Operation
Lamp test and manual reset
When the key switch is turned to the spring return "TEST" position, all lamps, the internal audible
alarm and the optional external alarm device will turn on until the key switch is released.
When released, a pending alarm condition is cleared.
NOTE: An error condition will NOT be cleared!
When the key switch is turned and released twice within 2 seconds, a system reset is performed
which also clears any pending alarm and error conditions, and logs a fresh reference value.