OK so if I bought a Digital Multimeter..
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=14006
Printed Date: May 09, 2024 at 11:40 PM
Topic: OK so if I bought a Digital Multimeter..
Posted By: Mr Akimoto
Subject: OK so if I bought a Digital Multimeter..
Date Posted: May 26, 2003 at 12:27 PM
what would I do with it? I am installing a DEI Avital 2200 in my Mazda Miata. I think I have located the correct wires to spice into. So the question is what would I do with a digital multimeter (DMM)? The voltages in the ignition wiring harness, assuming they are hot or constant, should all be 12V+, since the battery is 12V? I guess the real question is are there some tests I want to perform with my DMM to ensure my alarm system will function correctly or will prevent any potential installation disasters? I absolutely want to get one if it will prevent any problems or headaches. BTW I saw a nice small one made by GB Instruments at Lowes for $22! Ciao
Replies:
Posted By: CHASER
Date Posted: May 26, 2003 at 4:00 PM
Basicaly you would normaly use a DMM to check the wires you are cuting into to make shure they are the right ones and if you run ito problems you use it to troubleshoot . GB is one of the cheapest available in terms of cost and quality, but if you only needed for this one install it will do ok.
Posted By: xetmes
Date Posted: May 26, 2003 at 6:35 PM
yea that should work, if you plan on using it again i would recommend an auto-ranging just because it makes life easier
Posted By: Mr Akimoto
Date Posted: May 26, 2003 at 8:44 PM
I like the easy life. What's a good inexpensive meter? BTW Harbor Freight (or Tools) had one for $1.50! Ciao!
Posted By: molotov_icr
Date Posted: May 27, 2003 at 8:21 PM
I personally wouldn't use anything other than a Fluke. But thats just me. Try going to radioshack , sears, or you could probably get one of ebay, they have tons of cheap meters.
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"If it's to loud, Then you're to old"
Posted By: IronCy
Date Posted: May 27, 2003 at 8:45 PM
Most wires, if not all wires (havent ran into a wire with a lot more then 12v--but my experience is limited) will be 12v, in this case, you might want to look into a test probe rather than a dmm. A probe will let you know if a wire is resting at ground or 12v. This will be all that you will need...assuming you already have tech sheet--you will just be double checking wires. Otherwise it would be very tiresome stripping each wire back so that you could check the voltage----apposed to just sticking it with a test probe. A dmm will come in handy if you need to test resistors before installing them---newer cars these days require resistors. I would say that you would be safe and be able to save some time by just getting a test probe---but you really should have both if possible. Just my 2 cents -Cy
Posted By: amigoboom
Date Posted: May 27, 2003 at 9:25 PM
You Should Not Be Intalling This If You Do Not Know What To Do With A DMM!!!!
Posted By: Mr Akimoto
Date Posted: May 29, 2003 at 9:02 AM
Well I bought one at Radio Shack. It was marked down from $69.99 to $29.99. It looks good, seems well built, and is very easy to use. I especially like the auto ranging. If any of you are interested, the model number is 22-801. Ciao
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