INFLUX MEASUREMENTS SprinklerSense FTI Manual To The Installation, Operation & Maintenance Download Page 7

IOM FTI Iss.1 

October 2018 

Page 7 of 8 

Flow Switch and FTI System Wiring Diagram: 

 

 

Remote Key-Switch Terminals 

Two terminals are provided on a separate block (J5) for remote key-switch actuation. These terminals must only 
be connected to volt-free contacts such as a mechanical switch or relay contacts. Connection to other types of 
circuit may result in failure of the FTI. Do not connect multiple FTI key switch terminals together. 

IF IN DOUBT PLEASE CONTACT INFLUX FOR ADVICE 

 

Summary of Contents for SprinklerSense FTI

Page 1: ...O THE INSTALLATION OPERATION MAINTENANCE OF SprinklerSense Fixed Test Interface Unit FTI FOR USE WITH SPDB30 SPDB90 TYPE FLOW SWITCHES Contents Page 1 Specification Operation 2 1 1 Introduction 2 1 2...

Page 2: ...mA 1 3 Operation The FTI is connected to the SprinklerSense flow switch via a serial communications link wired It continuously requests status information from the sensor and reacts accordingly In nor...

Page 3: ...the unit will timeout back to its normal ON mode To start a test if the key has been left in the TEST position and timed out the key must be returned to ON position and then re set to TEST Flow Switch...

Page 4: ...tallation refer to the software installation guide If the software is installed but USB OK is not displayed when expected it is likely that the PC has not yet recognised that the device is connected T...

Page 5: ...ed with a minimum depth of 35mm The box should be mounted in an easily accessible position where it is not likely to become wet in normal use Cable entries should be made available for cables 1 from t...

Page 6: ...itch unit using J1 terminals 4 to 7 in the FTI to terminals 1 to 4 in the flow switch Connect V to V V to V COMS to COMS and COMS to COMS Shown in wiring diagram below Relay Outputs Connect the SPDB30...

Page 7: ...on a separate block J5 for remote key switch actuation These terminals must only be connected to volt free contacts such as a mechanical switch or relay contacts Connection to other types of circuit...

Page 8: ...that the power supply is correct and turned on If the Remote Key Switch input is connected disconnect and try unit again If the unit still does not function it should be replaced by a new unit FTI uni...

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