UNI-T UT210D/UT201E Digital Clamp Meter True RMS Voltage Resistance Capacitance Multimeter Temperature Measure Auto Range Electrical (ABS)

Product Information

When using the NCV function the display will show a number of -, depending on the electric field. This can usual be used to see if a mains outlet or cable is powered or trace a cable that is just under the wall. This function is always a guideline and not a 100% confirmation of voltage or no voltage. They don't measure DC current, only AC current. Sometimes they claim DC current capability, but upon closer inspection you notice it's using the leads, no the clamp. Connect and fasten the SOP8-DIP8 board to the CH341A programmer. The SOP8-DIP8 board pin 1 should be farthest from the USB connector and adjacent to the fastener so as to align with the 24CXX DIP8 outline on the programmer. So my question is is this typical behavior for the meter, or should I exchange it for another? What do others see? Cable position within the clamp does not matter btw. As long as the cable goes through the clamp, you get the same measurement.

Screen update rate is unusually fast for Uni-T at around 4 updates per second. Unfortunately, other things are slow: the latched continuity tester is usable, but certainly not fast. Resistance autoranging is slow. Reading current with the clamp is also a tad slow, it usually a second or two for the value to come up to the right area, and then 2-3 seconds more for the last digit to stabilize, so current isn't instant. In voltage mode, you get no overshoot, but usually have to wait 0.5-1 second to get a reading because of the autoranging (which you can't disable). It shows you ---- while it's doing that, and then gives you a stable value, I like that. There are no major transmission lines visible from my location, and local power is distributed via underground wires. I took the meter outside and tested in two different locations separated by 100 feet or so. Before being zeroed, the meter reads in the 320-430mA range. After zeroing the meter, I tested variability based on orientation. Slightly rotated and tilted up and it read 130mA . Tilted it down, -75mA. The variation was similar when tested in the other location. (Biggest change tends to happen when tilting up vs down.) So today, outside, the variation is around 210mA. I saw earlier in the thread that the meter could become magnetized and require degaussing. I understand this could cause an offset in the reading, but it's not clear to me if it could also cause the variation based on orientation that I'm seeing. Also, I'm not sure which of my power tools or appliances would leak enough EMF to use as a degausser. Connect the SOIC8 test clip to the UT210E EEPROM. The EEPROM should be a Microchip DM24C02A SOIC8 device located near the crystal oscillator. The test clip pin 1, indicated by the red wire, should be connected to EEPROM pin 1, indicated by the dot on the top of the EEPROM. You may need to move some of the neighboring capacitors out of the way to attach the test clip.

Customer reviews

REALLY happy after all of the Chinese crap I requested and reviewed. Finally--got a nice clamp meter for DC current and work! Stoked. I've looked at many different clamp meters, and typically they come with one or more of these limitations:

One this side is another string of resistors (R27A, R27B, R27C: 3x300kohm), but strange enough they are connected directly to the input terminal without any protection. The NCV voltage led (LED3) and the transistor to drive it (Q2) is also placed here. To wait. To wait long and not to hurry. To wait so far there will pass all self-tests until squeaks, then still to wait and wait for the moment when there are changing indications of the millivoltmeter. I.e. when the self-test will be completely passable, it will take ~ 2-3 minutes.

Feedback

The big IC (DM1106EN) is the main multimeter chip and the frontend for the clamp is mounted close to it (U4:OPA4330 Quad OpAmp). It included the DMM, a pair of probes, a pouch and a manual (Both a English and a Chinese version). They only work with high currents. The lowest range on many devices is 20A or 40A, which gives you 10mA resolution.