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Mainpage > Articles > UNI-T > Tools and Service > With the UT139C you´ll find out why 5999 is better than 1999 ...

With the UT139C you´ll find out why 5999 is better than 1999 ...

Universal multimeter UT139C with a high resolution will be appreciated at development and everywhere, where you need to find out a situation in a given device accurately

Imagine a situation, when you need to check or set a voltage of 3.3V or 5V usual at digital electronics (AD converters reference,…). Or to measure the end of recharging of Li-ion/ Li-Pol batteries at 4.20V when it really matters on every miliVolt. In these cases, with usual multimeters you´ll face one cardinal fact - regarding that the most of them has a max. display reading of 1999, you´ll measure in hardly the first quarter of a range, thus with a significantly lower resolution. For example instead of desired 4.001 V (3 decimal positions), you´ll only see 4.00V. Naturally, we don´t always need such a high resolution but many times an improvement of resolution in one magnitude can provide us a worth information about a real situation in a measured circuit. In these situations it often doesn´t matter on the absolute accuracy that much, but right on a resolution, especially when comparing voltages in two points, increase/ decrease...

From this point of view is the novelty in our stock UT139C an excellent device providing besides a high resolution (5999) also another features worth to notice, for example: TRUE RMS measurement in a range of 45Hz-1kHz (to 400 Hz with VFC filter activated), measuring of high-capacity capacitors up to 99.9 mF (99 999 uF), measuring of duty cycle in a range of 0.1% - 99.9% and other. Not quite common is also measuring of uA and mA even in AC range. Function Rel is useful even at measuring of small capacitors, where it´s able to eliminate “offset” caused by a capacitance of testing leads.

A thermometer (K type) with arrange of -40 to 1000°C can also be useful at development. From some point of view it´s advantageous supplying by two AA cells, not by a classic 9V battery (AA cells have a better capacity/ price ratio).

UT139C is also able to serve as a non-contact AC voltage tester (NCV), indicating in 4 steps a proximity of >100VAC voltage. . Indication is by a red LED in the upper part of display, by a display (-,--,---,----) and by a buzzer.

Further information will provide you the UT139C datasheet.
In case of interest, please contact us at info@soselectronic.com.

Advantages/ Features:

  1. modern multimeter with max. reading of 5999
  2. automatic/ manual range
  3. CATIII/ 600V
  4. TRUE RMS (45Hz-1kHz)
  5. capacity 9,99nF-99,9 mF
  6. frequency 10Hz-10MHz
  7. temperature -40 to 1000°C
  8. diode and continuity tester
  9. Data Hold and Rel function
  10. non-contact voltage detector (4 levels of indication)
  11. robust and ergonomic construction
  12. advantageous power supply by two AA cells

Date of publishing 2013-11-22
When you issue article on your website, please give its source: http://www.soselectronic.com/?str=1443
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On-line information from SOS electronic
Updated 2014-07-24 03:27:42
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