Digital clamp meter (YT-73091)

Universal clamp meter YT-73091 with automatic range for most indications allows you to make basic electrical measurements. The meter is equipped with measuring clamps, which allow you to measure the AC current in a single wire using the inductive method. The measurement is carried out without disconnecting the circuit or disconnecting it from the power source, and makes it possible to measure a much higher current than conventional electrical meters.

Basic measurements:

• AC voltage measurement: A.C. 0-600 V
• DC voltage measurement: D.C. 0-600 V
• alternating current measurement: A.C. 0-600 A
• resistance measurement: 0-20 MΩ
• diode test: IF 1mA, UR 1.48 V
• circuit continuity test: 0-120 Ω

Additional measurements:

• temperature measurement: -20 to 1000 °C

Measurement accuracies:

Example of accuracy determination for AC current measurement. Calculation for the measurement result: 30 A

• Measurement accuracy of YT-73091 meter for this range is : ±(2.5% + 5), resolution 0.1 A
• calculation of measurement error formula: (measurement result x 2.5%) + 5 x resolution
• calculation: (30 x 2.5%) + 5 x 0.1 = 0.75 + 0.5 = 1.25 A

Result including measurement error for 30 A indication = 30 ± 1.25 A*

• Result including measurement error for AC voltage measurement indication: 235 V = 235 ± 8.525 V*

result including measurement error for DC voltage measurement indication: 12 V = 12 ± 0.106 V
For a table with the resolution and accuracy for a given measurement, please refer to the user's manual.

*The YT-73091 meter does not have a true rms measurement function, so the above result is the real rms value of AC voltage and current only for a normal sinusoidal waveform.

Built-in functions:

• AUTO - automatic adjustment of the measurement range. When measuring unknown values with a meter with manual range adjustment using the knob, take measurements sequentially from the largest range up to the range giving the most accurate result - otherwise you risk damaging the device. On the other hand, in the case of a multimeter with the AUTO function, you only need to make one measurement and the meter will automatically find the optimal range. The meter starts by default in AUTO mode
• RANGE - manual change of the measurement range. A useful function when checking many of the same components with a known value, such as a series of resistors. Manual setting of the range will reduce the time of such measurements significantly
• FUNC. - change of measurement mode e.g. from temperature measurement from °C to °F, switching diode test to circuit continuity test
• DATA HOLD - retaining on the display the currently measured value
• MAX HOLD - retaining the maximum measurement value on the display

Additional information:

• LCD display, maximum displayed result: 1999
• backlighting of the screen
• audible signal in the test of circuit continuity for resistance below 50 Ω
• possibility to enable diode and circuit continuity tests separately
• clamps open up to 37 mm and allow measurement of a single wire with a maximum diameter of up to 37 mm
• measuring probes and carrying case included
• design with overload protection
• automatic shutdown of the meter
• low battery indicator
• power supply: two 1.5 V (AAA) batteries

Attention!

Current measurement with clamp meters is performed only on a single conductor, single wire. Fastening the clamps on a multiconductor cable without isolating the single conductor will show an incorrect result or zero current flow.

Technical data