Depth Transducer Troubleshooting / Replacement

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum kcmrock,

Q1) From a post on your site ("Fault isolation of depth acquisition problem associated with a depth sounding product") it appears that there is not a way of checking the transducer with a multimeter. Is that correct?
A1) Yes.

Q2) If I need to replace the depth transducer, can you recommend a product that is compatible with my display unit, and will fit the existing thru-hull fitting?
A2) Unfortunately, ST30 instruments were retired some time ago and are no longer supported. Similarly, transducers for these instruments are no longer available. If seeking a replacement Depth instrument, it would be recommended that an E70064 i40 Depth Instrument and E26009 p7 instrument transducer or E70148 i50 Depth Instrument Pack (includes E26030 D800/P17 transducer) be used to replace the ST30 Depth Instrument and its transducer.