[CA] [CA11] Testing linear rudder transducer m81188

[Simon30]

Hello. Im having a no rudref message on my st6002. I am suspecting my m81188 linear rudder sensor. Wiring is good from the sensor to the board. I cant find any spec on how to test the rudder itself. Do i use the same resistance spec as a rotative rudder sensor ?

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum Simon,

Q. I cant find any spec on how to test the rudder itself. Do i use the same resistance spec as a rotative rudder sensor ?
A. Yes. Please click here to view a FAQ addressing the subject of how to test a rudder reference transducer.

[Simon30]

Thank for your help. I did the test ; and transducer is not within specs. Since the m81188 seems to be no longer available, is there another part that would be a direct fit to replace it ?

[Chuck - Raymarine - Moderator]

Simon30,

As you may be aware Raymarine only manufactures and sells rotary rudder reference transducers today. Those seeking a linear rudder reference transducers are generally recommended to consider the Seastar (Teleflex) AR4502RM Smartstick Rudder Reference Transducer..