Electrical measurements are an integral part of work in electrical and electronics, regardless of which branch these areas it moves. Before the era of digital instruments most multimeters reached only values of current, voltage and resistance measurement capacitance or inductance was performed with the help of special devices called bridges RLC. Today it is possible to purchase a digital meter, which in a compact housing integrates all these dimensions, and, in addition, offers a number of other useful features. In this category you will find universal and specialized testers.
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Transistor and RLC tester LCR-T4
Meter, tester of transistors, resistors, coils, diodes and others. The device has a large graphic display 128 x 64 with green backlight. On the board there is a stand ZIF-14,...
Index: DNG-12102
Index: DNG-12102
Grounding resistance meter CEM DT-5300B
The DT-5300B electronic meter manufactured by CEM is designed to measure the earth resistance used in electrical and lightning protection installations, as well as to measure...
Index: GTK-20736
Index: GTK-20736
Resistance and capacity meter UNI-T UT601
Accurate measurement of active resistance and capacitance. It allows you to measure resistance up to 200 mฯ and capacitors 20 UF. The device also has a transistor tester, a...
Index: UPM-00997
Index: UPM-00997
Resistance, capacity and inductance meter UNI-T UT603 RLC
Multimeter allows to measure resistance to 200 Mฮฉ , capacitance to 600 ยตF and inductance to 200 H. With its help you can also test diodes, transistors and check the continuity...
Index: DLT-19562
Index: DLT-19562
Surface resistance meter - Benetech GM3110
The Benetech GM3110 Surface Resistance Meter is used to measure resistance values by applying two parallel electrodes to the surface to be measured, in order to evaluate...
Index: BNT-19572
Index: BNT-19572
High-voltage insulation resistance meter - Benetech GM3123
Benetech GM3123 is an insulation strength tester designed to perform high voltage tests.
Index: BNT-19573
Index: BNT-19573
See also
- Universal meters
- Weather and air quality meters
- Energy meters
- Other meters
- Oscilloscopes
- Function generators
- Measuring probes
- Voltage indicators
- Measures and calipers
- Weight meters
- Light meters
- Clamp meters
- Cable detectors
- Temperature gauges
- Cable testers
- Socket testers
- Tachometers
- Laser rangefinders
More cables, the better?
Resistance measurement is a special challenge. As you know, there is no method of direct measurement of this parameter, so you need to use the so-called indirect measurement through determination of the values of the voltage drop that occurs when the flow through the test the current element with a given (known) intensity, it's easy to calculate the resistance value using the immortal Ohm's law (R = U / I). That's the theory โ but practice, as usual, some surprising nuances. So, in the case of very small values of resistance (e.g., ground loops), i.e. of the order that the maximum individual ohms measurement is strongly perturbed, the resistance of the wires of the multimeter and pin probes (electrodes) with the conclusions of the element. Therefore, the more expensive measuring earth resistance and devices laboratory uses a method czteroprzewodowฤ in which two wires are for the "flow" of the nominal current, and the other two "collect" voltage drop directly from these conclusions.
Testers and parameters LC
In this category you will find several interesting offers devices, which are ideal in measurements performed both in the home and in the field. Measuring resistance and capacity unit type UT601 allows accurate resistance measurement in the range from 20? to 2 G? and the capacity ranges from 200 PF to 20 MF. In addition, it offers the function to check bipolar transistors (NPN/PNP), voltage and conductivity of semiconductor diodes and detect short circuits and interruptions (buzzer). In turn, resistance meter UT602 inductance and offers similar features, with the difference that instead of the capacity measures the inductance in the range of discharges from 2 mH-200 H.
Testers of insulation and grounding
Resistance meter unit type UT526 provides a measurement of loop resistance short-circuit method two-wire system in the range of from 0.01 to 2 k?, and the accuracy of measurement small values at the bottom of this compartment provides the calibration function (by shorting between the probes before the measurements correctly). In turn, the measurement of ground resistance can be performed through high-voltage tests โ UT526 the meter provides voltage for testing ranges: 100 V, 500 V and 1 kV, which allows to make measurements in the range 50 k? up to 500 M?. The device allows, in addition, voltage measurement DC and AC (up to 440 V) and frequency (20 ~ 100 Hz).
