Topic: New Unit 898 SI Practice Prior To Use

[Deltaden]

Question No. 1:  What do I need (cables, etc.) to hook up my new unit in the house or garage to a 12v garden tractor battery I have so I can get some practice with the unit while I wait for 30 inches of ice to melt from the lake?  I see on the HB Web Site they sell a Power Cable PC 10 and also a PC 11.  I know I also should use a 3 amp glass fuse on the positive cable to the battery. Should I hook up the transducer also?  Can anyone walk me through this?

Question No. 2:  Why do I not see anything that explains "What's In The Box" on the various units that are sold across the web? 

[sonar2000]

You will need a cable probably the HB power cable because of the connector.  you might find this connector but it might be easier to get a spare cable form HB.  Hook the + and the - to the battery as follows:  Battery (-) connection to a 3 amp fuse to HB then ..  Battery (+) connection then to a rocker switch (on/off) then  to HB. Notice I am suggesting that you fuse both connections on the battery end.  This will give you a protected source of energy.  You dont need the transducer connected to play with the unit.    Chuck 

[sonar2000]

small corretion on the last post.  Make sure you fuse both battery connections with a 3 amp fuse.  I forgot that on the battery + step.   chuck

[FuzzyGrub]

Get the PC11 power cable.  It has larger diameter wire and noise choke.  It came standard on my 798, and was part of a "noise kit" on my earlier 797.  It was also used in 997 and 1197.

If you temp mount your gimble bracket to something, plug all you accessories in.  Can't hurt it, and you won't default to demo mode.  You will be able to configure and set-up all screens as long as you can get gps lock in your garage.  If you have a paddle wheel speed indicator, you will need to spin it so the unit sees it. 

[tennwalkinghorse]

small corretion on the last post.  Make sure you fuse both battery connections with a 3 amp fuse.  I forgot that on the battery + step.   chuck

Hey Chuck I'm a little confused here a fuse should be connected as close to the power source as possible in this case the positive terminal on the battery to protect the unit from a short . Power would run from the positive side of the battery to the unit then back through the negative cable to the battery to complete the circuit. Placing a fuse on the negative cable will not protect the unit ,so why do it? I'm not being a smart ass just want to understand your logic on this.

[sonar2000]

Fusing on both lines at the battery protects the battery or the leads should a short develop. On material such as a boat where ground is not the hull or is isolated this protects the source.  hope this helps.  chuck

[fishbone]

The fuse at the battery positive terminal is all that is required. The battery, switch and electronic unit are in a series circuit.....the fuse opens and all current comes to a halt. The fuse connected at the battery protects the battery from massive discharge caused by a short to ground. Any short between the fuse and the battery provides no protection.  The fuse offers no protection to the electronics, nor is any needed. An internal short in the electrons toasts the unit unless the current draw pops the fuse, but the electronics still has self caused blown components.
Protecting the battery with a fuse prevents continual very high current flow to ground to the point of flame, and internal heat build-up in the battery to where an explosion could happen.
It's just like your home wiring where all the fusing is at the power entrance. It cuts the power if there is a down stream problem (power limiting).