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Logic Probe EM4610A configuration
Introduction
This unit is a logic troubleshooting instrument which gives visual (LED light) and audio indications for logic levels and pulses.
It can also capture positive or negative events as short as 30 nanoseconds.
Operation Instruction
1.Connect the black alligator clip to ground or common of the circuit to be tested, the red alligator clip to Vcc of the circuit.
2.According to the type of logic to be tested, select TTL or CMOS with the TTL/CMOS switch.
Note: The level is nominal 0 to 5 VDC, and CMOS levels are 0 to 5-15VDC .
For Pulse or Logic level testing, set the PULSE/MEM switch to PULSE position
3.Touch the probe tip to the circuit point to be tested, The unit will give LED and sound indications indicating the logic level or signals.
4.Setting the PULSE/MEM switch to MEM position allows the unit to capture a positive or negative pulse, the yellow LED will light and PULSE position.
Electrical Specification
Specifications:
Power Supply:5~15V dc
Power Supply Protection:20VDC/VAC
Maximum Input Voltage:40VDC/VAC(duration ;15 seconds)
Maximum Input Signal Frequency:20MHz
Input Impedance:1MΩ
Pulse Indicator Flash Time:500mS
Operating Temperature:0~40℃, relative humidity<80% Storage Temperature:-20~50℃,relative humidity<85%
Size:203x21x20mm(for main body only)
Weight:about 50g
RacerX
Reviewed in the United States on May 2, 2024
For the price of under $11 I paid, it is an extremely good value. It's larger than I expected and has the wrong automotive clips (recommend you solder some mini alligator clips) but operates very well with clear LED and clear Audio tones. Inside it contains 1 IC and 11 transistors and appears to have a sturdy construction. I purchased this to teach my son about digital electronics and it's also a very useful for real debug too.
j.yoders
Reviewed in the United States on March 12, 2024
I will admit that I knew about the quality concerns expressed by other reviewers, and so I went into buying it with my expectations set extremely low. Overall, I think this logic probe is pretty decent, even though it's not 100% perfect. But then again, I'm not 100% perfect, either.Once I made sure it was working as intended, I cut off the automotive battery clamps - which have been saved for future use - and soldered a male XT30 connector in their place, with the intent of building some of my own custom interchangeable leads, for receiving power from a wide variety of circuits under test. I love the fact that the beeper isn't very loud at all; it's definitely great for late-night sessions when I'm working on a circuit while house guests are trying to sleep.Not too bad for a sub-$15 logic probe set. I definitely look forward to testing more of the TTL chips I have in my collection, and all of my CMOS chips, as well.
Boston Geek
Reviewed in the United States on February 9, 2024
spend a bit more ...total junk. "low" light very dim, pulse light flickers all the time ...otherwise it works OK:)
David L. Parnell
Reviewed in the United States on February 1, 2024
Seems OK, but the clamps are unusable for the applications and voltages where this would be used. The probe is essentially not practical without replacing the enormous clamps.
Kindle Customer
Reviewed in the United States on December 6, 2024
Would purchase again
Ali Moeen
Reviewed in Canada on August 13, 2020
I've just successfully diagnosed a circuit with this. It works well. I was skeptical when I saw the clamps and thought it is for automobiles. But I can confirm it works well for CMOS and TTL boards. You can change the clamps to alligator clips or any other connectors when required. The price might fluctuate, though.
englishrupe01
Reviewed in the United States on December 5, 2020
I got mine at a dollar off for Black Friday so only $11 and a great deal! I have found it really useful with it detecting pulse levels off square waves etc. It is a really handy tool that i can use to detect that IC legs are outputting signals properly, etc, and for general circuit shorts and trouble-shooting. It is one of those tools that, once you have one, you wonder why you never bought one before. Great value here!
Lawrence
Reviewed in the United States on October 11, 2020
Mine was defective. Showed everything as stuck on high. Wasted time. Ordered another brand and it was fine.
david allen
Reviewed in the United States on June 18, 2019
power clips too big, no problem. i put correct clips on and used the big ones for other projects
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