Actron CP7677 AutoTroubleShooter - Digital Multimeter and Engine Analyzer for Automotive Professionals, Orange
Score By Feature
OveReview Final Score
Product Description
Questions & Answers
You probably won't be able to use it as a multimeter alone if you plan on using it that way. My preference is that it is not only used as a multimeter, but for occasional (and less frequent) testing of dwell angle for automotive points. A friend's 1965 Chevy that I shot). As an additional feature, I like the audible diode/continuity test that sounds at zero resistance, so I can still do continuity tests even when I am unable to see the meter itself.
Please accept my sincere thanks for your In any system that runs on 6 V, it can test for both. I wish you the best of luck with your Jeep.
The hold function is on when the H symbol appears. There's a push button on the control panel that controls it. The H will go away when you push and release! Voltages that spike and drop are a great example of its use. There is not much good to be had I wish you the best of
When it comes to displaying Dwell and Tach measurements, the CP7677 is only compatible with 12 volt systems.
Selected User Reviews For Actron CP7677 AutoTroubleShooter - Digital Multimeter and Engine Analyzer for Automotive Professionals, Orange
I have tried using the CP7677 to set the speed of my new carburetor but couldn't get a stable reading so I have to adjust the fuel. Following the reporting of multiple blogs pointing out erratic RPM displays, I contacted Actron Tech Support about the CP7677 and other "Timing Lights" included with Pertronix Electronic Ignition Systems not reading accurately. I am not really satisfied with a Tech Service representative who doesn't know the difference between a digital multimeter and a timing light. In the product description, there is no mention of the fact that the meter does not work with Pertronix ignition systems, so relevant information is being left out to assist in making a am returning this Multimeter as it was not designed to allow me to perform the task it's advertised for.
A 1970 Cadillac had a low RPM and a high dwell angle, so I used this to check them. I really liked the dwell feature. Although the RPM feature was more sporadic than I had anticipated, I am not sure if it is accurate, and my engine's idle speed is all over the place, or if the tool is not accurate. If I idle my car, I don't think it jumps around that much (500 - This means 900 RPMs). My decision was to take the average between the readings I was seeing, which was about 700, and this was the correct idle speed, so I decided that was Solidly constructed, the unit is well built. This product comes in a rubberized case which I like. An opportunity to keep your hands clean when they are oily or greasy. As for the dial, it has a solid click between each setting. There are no very noticeable flaws to this product. It is solidly built and the input and clip ends are rubber coated.
The purpose of my purchase was to be able to work on the carburetor of a 1965 mustang that was given to my wife and me. The car had been sitting for some time and needed to be rebuilt. The RPM setting was the main reason I bought the tool. In order to adjust the fast and low idle RPM, I used the meter. I reconnected the broken wire on the voltage regulator by hooking it back up to where it had broken. You know, etc. ). As soon as I had wired the computer correctly, I checked the voltage at the battery and it was over 18 This had to do with a bad regulator, I figured. The meter was connected to the battery when I replaced the regulator, and the meter still read 18+ volts. As a result, I retraced all my wiring again, but it was sure accurate. When I hooked the meter back to the battery with the car not running, I saw the voltage After leaving the meter hooked up, the voltage kept going up to over 19 volts even with the car off and I had a realization that something was When I took my other multimeter out and tested it, it read around 13 volts with the car off and around 14 volts with it running. As soon as the car starts, the voltage is 46 volts. Fortunately, I had 30 days to return the multimeter, so I sent it back. In order to verify that my RPMs are set correctly, I will buy a tachometer, since it could not determine DC voltage properly.
We have been working on this for more than 9 years I tested the meter and it has worked as expected for me. There is only one resistance setting (Ohms) and two voltage settings (AC and DC), but they seem to be consistent. As far as I can recall, I have not seen any extreme, out of the ordinary readings which would make me doubt the accuracy or reliability of any measurements. There was a time when I noticed that the digital LED readings were fading, and I thought that my battery had died. It still had the same issue of the LED not being as bright as before, and sometimes the LED would fade My first step was to open up the battery compartment, clean the contacts (behind the switch), and thicken the dielectric grease so that both the battery and the switch contacts would be properly sealed. Since then, the brightness of the digital LED has returned and no further problems have been encountered. Hopefully, I will be able to use my Actron for at least a couple more years. Earlier this month, I picked up another multiple Recently, I used a backup meter for peace of mind.
The power would not be turned on. Set the idle speed of an automotive engine and checked the dwell time with a tachometer. Amazon has the Actron CP7677 for sale newly. I could not get the meter to work. This blank screen has been tested with three different 9v batteries with my Klein MM 100 multimeter to ensure that the voltage is correct. The Actron meter was returned to Amazon because it was defective. In order to obtain a more reliable tool, I purchased an 1980s Sears Craftsman Dwell/Tachometer from eBay, which I have used at one time or another. In addition to the other remarks made, it must be said that removal of three metal to plastic contact screws is required to replace the battery. At some point, the metal screws inside the plastic will come loose. Access should be provided to a separate compartment for the batteries. Over the last decade, Actron has been producing diagnostic tools in Ohio. In 2004, it was acquired by SPX and in 2012, it was sold to Bosch. Unfortunately, the quality control of this particular tool appears to be lacking when it comes to engineering, design and manufacturing.
When I use mine occasionally for a few months, I no longer get a proper voltage reading. In addition, it informs me that multiple vehicles are charging at 20 volts, while batteries just off a digital charger are showing 16 volts. There is a 16+ volt reading at the O2 sensor heater circuits as well. As of the time of my purchase, Dwell and Tach components were working properly (the reason for purchase). A new battery and clean terminals have been installed. The voltmeter is going in the back of my toolbox for those occasions when I need dwell (not very often any more), but it is basically meaningless to me at this point as a voltmeter.
Related Products For Actron CP7677 AutoTroubleShooter - Digital Multimeter and Engine Analyzer for Automotive Professionals, Orange
