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PoE 802.3at - data and power transmission standard
UNIVERSAL METER UT-139A UNI-T
DESCRIPTION UT-139A is a universal digital meter used to measure: voltage, current, resistance. The meter has the function of automatic change of measuring ranges, as well as a relative measurement mode (when measuring voltage, current and resistance). The device also has a built-in battery tester.
For AC measurements, the device has a built-in filter that eliminates high-frequency disturbances that may affect the measurement accuracy (VFC). Additionally, the UT-139A has an electric field detection (NCV) function.
SPECIFICATION
DC voltage measurement :
20 mV ± (0.7% + 2) @ 10 µV , 200 mV ± (0.5% + 2) @ 0.1 mV , 2 V ± (0.7% + 3) @ 1 mV , 20 V ± (0.7% + 3) @ 10 mV , 200 V ± (0.7% + 3) @ 0.1 V , 600 V ± (0.7% + 3) @ 1 V
AC voltage measurement :
V.F.C. OFF (45 Hz ... 400 Hz) : 20 mV ± (1% + 3) @ 10 µV , 200 mV ± (1% + 3) @ 0.1 mV , 2 V ± (1% + 3) @ 1 mV , 20 V ± (1% + 3) @ 10 mV , 200 V ± (1% + 3) @ 0.1 V , 600 V ± (1.2% + 3) @ 1 V, V.F.C. ON (45 Hz ... 400 Hz) : 200 V ... 600 V ± (4% + 3) @ 0.1 V / 1 V
DC current measurement :
200 µA ± (0.7% + 2) @ 0.1 µA , 2000 µA ± (0.7% + 2) @ 1 µA , 20 mA ± (0.7% + 2) @ 10 µA , 200 mA ± (0.7% + 2) @ 0.1 mA , 2 A ± (1.0% + 3) @ 1 mA , 10 A ± (1.0% + 3) @ 10 mA
AC current measurement :
200 µA ± (1% + 3) @ 0.1 µA , 2000 µA ± (1% + 3) @ 1 µA , 20 mA ± (1% + 3) @ 10 µA , 200 mA ± (1% + 3) @ 0.1 mA , 2 A ± (1.2% + 3) @ 1 mA , 10 A ± (1.2% + 3) @ 10 mA
Resistance measurement :
200 Ω ± (1% + 2) @ 0.1 Ω , 2 kΩ ± (1% + 2) @ 1 Ω , 20 kΩ ± (1% + 2) @ 10 Ω , 200 kΩ ± (1% + 2) @ 100 Ω , 2 MΩ ± (1% + 2) @ 1 kΩ , 20 MΩ ± (1.2% + 3) @ 10 kΩ
Capacitance measurement :
Inductance measurement :
Frequency measurement :
Square-wave signal duty ratio measurement :
Temperature measurement :
Automatic change of measuring ranges :
hFE :
Diode test :
Sound signal of the continuity test :
Checking TTL logic states :
RS-232 :
Main features :
Measurement of the battery discharge level: 9V, 1.5V, NCV - electric field detection function, V.F.C. function - allows to measure the AC voltage values using low-pass filter with a frequency limit of 400 Hz, REL - relative measurement mode, Hold - stopping the meter reading, Writing the value MAX / MIN, Large, readable LCD display with backlight, Aesthetic and solid construction, Low battery level alarm
Power supply :
2 x 1.5V, type AA/LR6/FR6 battery - included
Weight :
0.42 kg
Dimensions :
176 x 81 x 48 mm
Manufacturer / Brand :
UNI-T
Guarantee :
2 years
PRESENTATION
Place for batteries 2 x 1.5V AA:
FILES PACKAGE Dimensions (L x W x H): 215x160x60 mm Package: Carton Gross Weight: 0.540 kg
COMPONENTS OF WORKING WITH: UT-139A
Net: 0.00 GBP
Gross: 0.00 GBP
Weight: 0.00 kg
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