The YT-73087 universal meter with automatic range for each measurement is a product that combines the capabilities of five separate devices. In addition to performing basic and advanced electrical measurements, the multimeter can measure air humidity, ambient temperature and e.g. liquid or cable using the measuring probes included in the set, sound intensity in decibels and light intensity in lux. All these functions allow you to assess the quality of work of electrical devices to a much greater extent than traditional electrical meters. We can examine the amount of light generated by the bulb, the efficiency of the sound system. We can also check whether the conditions are suitable for the operation of electrical devices (humidity and temperature).
BASIC MEASUREMENTS
alternating voltage measurement: A.C. 0-300V
DC voltage measurement: D.C. 0-300V
alternating current measurement: A.C. 0-10A
DC current measurement: D.C. 0-10A
resistance measurement: 0-40MΩ
diode test: IF 1mA, UR 1.5V
continuity test: 0-50Ω
ADDITIONAL MEASUREMENTS
Capacitor capacitance measurement: 0-100μF
frequency measurement: 0-200khz
temperature measurement: -20 to 1000°C
duty cycle measurement: 5-95%
relative humidity measurement: 30-90% RH
sound intensity measurement: 35-100 dB
light intensity measurement: 0-40000 Lx
MEASURING ACCURACY
Example of Accuracy Determination for AC Voltage Measurement. Calculations for the measurement result: 235V
the measurement accuracy of the YT-73087 meter for this range is: ±(1.0% + 5), resolution 0.1V
Measurement error calculation formula: (measurement result x 1.0%) + 5 x resolution
calculation: (235 x 1.0%) + 5 x 0.1 = 2.35 + 0.5 = 2.85V
Result taking into account the measurement error for the indication 235V = 235 ± 2.85V*
the result taking into account the measurement error for the DC voltage measurement indication: 12V = 12 ± 0.126V
result taking into account the measurement error for the indication of alternating current intensity measurement: 8A = 8 ± 0.34A*
The table with the resolution and accuracy for a given measurement can be found in the instruction manual.
*The YT-73087 meter does not have the true rms measurement function, therefore the above result is the real effective value of the AC voltage only for the correct sinusoidal waveform.
BUILT-IN FUNCTIONS
AUTO - automatic adjustment of the measurement range. When measuring unknown values with a meter with a manual range change using the knob, measurements should be made sequentially from the largest range to the range giving the most accurate result - otherwise you risk damaging the device. However, in the case of a multimeter with the AUTO function, it is enough to make one measurement and the meter will automatically find the optimal range. The meter starts up in AUTO mode by default
RANGE - manual change of the measurement range. A useful function when checking many of the same components with a known value, e.g. a series of resistors. Manual range setting will reduce the time of such measurements significantly
FUNC - changing the measurement mode, e.g. from AC to DC voltage measurement, switching the diode test to the circuit continuity test
REL - using the function during the measurement will reset the display and adopt the value visible before the display as the reference level. The next measurement will show the difference between the measured value and the stored reference value
HZ% - the button, when the knob is set to the frequency measurement position, will change the settings to the duty cycle/duty cycle measurement
DATA HOLD - keeping the currently measured value on the display
ADDITIONAL INFORMATION
LCD display, maximum displayed score: 3999
screen backlight
sound signal in the circuit continuity test fr resistance below 50Ω
Diode and continuity tests can be switched on separately
the set includes measuring probes, a temperature measuring probe and a cover
design with overload protection
housing made of ABS plastic + so-called holster, i.e. a rubber casing protecting the meter against mechanical damage
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