Question about Gardner Bender Gdt-3190/gdt-190a Digital Tester

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How to use gdt-3190 voltmeter

How to use to test 110 and 240 volts

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SOURCE: how to test 12 volt with this meter?

Set the center pointer to "20" in the "DCV" segment. Connect the black lead to "Com" the red to "V ω mA" HTH

Posted on Sep 30, 2009

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Starter won't crank on my 2007 harley street glide

Does the starter relay click, Is does the solenoid click, if it rattles probably the battery is discharged.

Best diagnosis is voltage drop testing.

First do a voltage reading on the battery and note what it is.

Using a voltmeter attach the red meter lead to the most positive part of the circuit, which would be the positive post of the battery and attach the black meter lead to the final destination or component in the circuit (if testing a starter circuit this would be the terminal on the starter, not the solenoid). THEN try to activate the starter and observe the meter reading. The meter will read the voltage dropped or the difference in potential between the source and the destination. An ideal circuit voltage drop reading would be 1 volt or less. If there is an open in the circuit (i.e. NO electricity is reaching the terminal) the voltmeter should read source voltage volts which means all the voltage was dropped. A normal good starter circuit should not show more than a one volt drop. If more than 1 volt is dropped there is a problem somewhere in the circuitry before the starter terminal. In this case leaving the red voltmeter lead on the battery positive post, move the negative voltmeter lead to the solenoid stud where the battery cable attaches and activate the starter circuit again. If the voltage reading is now 1 volt or less clean, repair, tighten the starter solenoid to starter terminal stud connections and test again and if no change clean/repair the internal solenoid contacts or replace the solenoid with a new/good one. If there is still a voltage drop greater than 1 volt move the negative voltmeter lead from the solenoid terminal stud to the actual battery cable terminal end at the solenoid terminal stud and again activate the starter circuit. If there is a 1 volt or less reading the battery cable terminal end and/or solenoid terminal stud and/or the connection between the two is faulty, loose, corroded or etc. Clean and tighten and retest. If there is still more than a 1 volt reading on the voltmeter the problem is a loose or corroded or otherwise bad connection between the battery cable terminal end and the battery positive post or the battery cable itself is bad. Clean and tighten the battery cable terminal and battery positive post and test again. If there is still more than a one volt reading on the voltmeter the battery cable is bad and will need to be replaced.

If there is less than a 1 volt reading when the test is done at the starter terminal the circuit up to that point is good so the next step will be to do a negative or ground circuit voltage drop test by connecting the negative or black voltmeter lead to the most negative point which is normally the negative battery post (or the closest thing thereto if, like some Sportsters, the battery post is hard or impossible to get to) and then connect the positive or red voltmeter lead to the starter mounting studs. Then activate the starter circuit again and if the voltage reading is greater than 1 volt clean the battery negative cable ends and battery post and negative cable to motorcycle frame or other grounding point, tighten same and similarly the starter mounting points and studs because there is a problem with the starter ground (could be looseness, corrosion, powder coat/paint problems etc). If the voltage reading is 1 volt or less than 1 volt in this test the ground circuit is okay and it will be necessary to perform a starter current draw test on the vehicle (and/or a starter current free draw test on the bench). If the results are within the specifications for the starter in these tests remove the spark plugs, raise the rear wheel so it can spin unimpeded, put the transmission in 5th gear and rotate the rear wheel to check for engine, transmission, primary and/or crankshaft resistance/bind. If the results are not within the amperage specifications for the particular starter replace or repair the starter motor to bring within the system amperage specifications.

May 26, 2014 | Harley Davidson FLHX Street Glide...

1 Answer

My voltmeter reads out 16/17 on my 94' Buick Park Ave. will this kill the battery?

Yes. Some voltmeters read higher volts when the voltmeter battery is low. Use a different voltmeter or put a fresh battery in the volt meter or test voltmeter against a known dc voltage to see if the reading is accurate. After this start thinking it is the alternator regulator.

Dec 20, 2013 | Buick Cars & Trucks

1 Answer

Where do you set the meter to test 1.5 volt batteries?

GDT3190 has a 1.5 V battery test position and if it does not have one then use DC Volts (V with straight line above) in any position higher then 1.5 V (eg. 2V)

Jan 27, 2013 | Gardner Bender Gdt-3190/gdt-190a Digital...

1 Answer

Battery wont charge alternator seems fine

As long as the alternator seems fine, I wouldn't worry about it. The problem will probably go away after awhile...HA HA, THIS IS A JOKE, from your statement that alternator seems fine. No rudeness or judgemental attitude intended.
Do you have a friend or know someone who has a voltmeter? It would take two minutes to put a voltmeter on the battery while the car is running, and it would tell you if the alternator is working as it should. If the voltmeter says over 13 volts (typically about 13.5 volts, up to 14.5 volts) then the alternator is good, and the problem likely is poor, corroded, or loose battery connections, or the battery may be too old to take a full charge, or may have a dead cell.
If the voltmeter says less than 13 volts (when car is running), then the alternator belt may be too loose, or you may have a loose connection on the alternator, or there may be a blown alternator fuse in the power distribution center near the battery, or the alternator is just too weak or malfunctioning and needs replacing.
Good luck, harlock6, I hope you find the problem. You can buy a perfectly good voltmeter just about anywhere for less than $20. Even the older analog type (with the sweep needle) would work for testing your alternator enough to know if it's working or not. More thorough tests of the alternator's actual amperage output could be performed (like a load test) with more expensive testing equipment, but you just need a voltmeter to check if the alternator is working or not.

May 21, 2012 | 2003 Honda Element

1 Answer

Where can i download a grundig gdt 1500 user manual

Without test: GDT

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

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Nov 13, 2011 | Audio Players & Recorders

1 Answer

Need instructions for Gardner Bender GDT-3190

check online at GB's site, some manuals are available as a pdf

Sep 27, 2011 | Gardner Bender #GDT-200A 7 Func Digital...

1 Answer

What are the settings on the sides of the gardner bender gdt-3190

The settings are the different voltage levels A.C. -D.C. and ohm values of resistor and amp values and there is a diode tester and a continuity tester

Feb 11, 2011 | Measuring Tools & Sensors

1 Answer

How to test 12 volt with this meter?gdt-190a

Set the center pointer to "20" in the "DCV" segment. Connect the black lead to "Com" the red to "V ω mA" HTH

Sep 30, 2009 | Gardner Bender GB Electrical GDT-190A...

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