Emerson 460 Manuel D’Utilisation

A four-position DIP switch is used to 

select two alarm (filter) delays and 

three mutually exclusive alarm 

modes. The switches are located 

next to the wiring termination 

blocks.

SS1 selects the leak detect filter 

delay, the interval for which a leak 

condition must be continuously 

detected before an alarm is 

triggered: 

OFF = 10 seconds (default)
ON = 2 minutes

This feature is useful for eliminat-

ing nuisance alarms. SS1 works 

independently of the settings of SS2 

and SS3. While the alarm delay is selectable (factory default is 

OFF=10 seconds), the cable fault delay is preset at approximately 

2 seconds.

SS2 selects latching or non-latching alarms, the setting in which an 

alarm will latch ON until manually reset:

OFF = Non-latching (default)
ON = Latching

The factory default is OFF=Non-latching. If the sensor is in latching 

mode (ON=Latching) and the leak condition clears itself in the 

interim, a manual reset is required. While the alarm is latched, the 

sensor goes into a “sleep” mode and power to the leak detection cable 

is discontinued. De-powering the cable prevents damage to the cable 

should it be in contact with the conductive liquid for an extended 

duration. After a manual reset, the sensor resumes its normal opera-

tion, continuously checking for leaks. If the leak condition has not yet 

cleared but the sensor is manually reset, the sensor will re-alarm after 

the appropriate leak detect filter delay. SS2 in the ON position will 

disable the operation of SS3.