Need installation for pitot tube(Sspeed Transponder) and lms-332

This is the official line

Can I change the MMSI number entered into a VHF radio or AIS unit?
Once entered and confirmed, the MMSI number can only be changed by a certified technical dealer. If you need your number reset or changed, it is recommended that you contact the organization or agency which originally registered your MMSI. For more information about MMSI numbers, go to the United States Coast Guard website at this link.

And

https://www.justanswer.com/boat/au99m-received-emailed-info-from-simrad-reset.html

This doesn't sound hopeful!

https://mt.panbo.com/2015/07/simrad-ai50-mmsi-reset.html

Full story

https://www.google.com/search?q=reset+Simrad+AI50+ais+to+a+new+MMSI

..

I wonder if the module has failed again, have you tried reseting the device?

I'm looking into this but I suspect that repairs are required again.

what is distance between the reference and sensing port on pitot tube ? also air density will need to be calculated

V =

2 p( T ? p)
?air

Need more info what type of engin and horse power,most engines have tube coming from gearbox,if not you will have to fit an external pitot tube

If you are asking about the speedometer, it runs on air pressure coming thru a small tube from the rear of the boat. Some have a separate pitot tube hanging off the back of the boat, some have a pickup on the lower unit. All have a small hole that can get clogged. look to the back of the boat for your style.

you lost your battery - bring a unit with you and ask for battery that fits in the store.

I have the same problem on my 520C.
I have no solution but I hope you have find some?
Best regards
Dan

I'd suggest calling Lowrance.. Those guys are very helpful with step by step support... I just purchased a used boat with a 525c df on it and been troubleshooting some problems with it. Central time zone and best to call right when they open or turn on the phones at 8:15.

I am guessing that the card you are using is a NAVIONICS chart? There have been some Lowrance units that were made around the same time that have had problems recognizing a Navionics chart right from power up.

Make sure the LMS-332 has the latest firmware version which can be downloaded from http://www.lowrance.com/en/Products/Marine/Full-Size-SonarGPS-Chartplotter-Combos/LMS-332C/Downloads/LMS-332C-Software-Update/

If the update doesn't help, this is going to be a compatibility problem with the LMS-332 and that particular card. You will need to replace the card or upgrade to a newer unit...but probably can just get used to removing and replacing the card when you turn the unit on.

had same problem with lms337. i had upgraded the unit but had not upgraded the lms2000 gps module. i was turning the isolator on in the boat which powers up gps module, if the lms337 is not powered up as well the gps unit goes to sleep. the upgrade fixes it by checking that the unit has not been turned on periodically. otherwise as soon as you power up gps module also turn on lms337. lowrance product support sorted this for me.