Description
UNI-T UT139B Multimeter
This product comes with a 3-year warranty. The UNI-T UT139B is a new professional multimeter with True RMS rating and CAT III 600V protection, designed to meet the needs of electricians for measuring LV distribution networks in buildings. The innovative, industrial design with a protective sleeve ensures the multimeter’s impact resistance. The instrument includes a range of additional features, such as low-impedance voltage measurement (LoZ) (for the UT139E + UT139S variants), variable frequency voltage (VFC) measurement (for the UT139E + UT139S variants), non-contact voltage (NCV) measurement, capacitance measurement, frequency ratio measurement and temperature measurement. The large, clearly laid-out TN LCD display with backlighting ensures better visibility of measured values. The display range is ±4000, and 9999 for capacitance and frequency. Refresh rate of 2 to 3 times per second. The fuses are protected by tubular fuses (10A FF 10A H / 600V fuse (6 x 25mm); mA / µA FF 500mA H / 600V fuse (6 x 32mm)). The multimeter is powered by two 1.5 V AA alkaline batteries. The measurement range can be selected automatically or manually. Test leads with probes and batteries are included.
The UT139B is an ideal choice if you want a professionally equipped multimeter with a range of additional functions, which is also accurate, safe, easy to read and use.
Product specifications (multimeter function):
- True RMS (the device measures the effective value of alternating current and voltage)
- AC voltage measurement range (AC): 40 mV / 600 V
- AC current measurement range: 400 μA // DC current measurement range: 400 μA
- 1 DC
- 40 mV / 600 V
- DC current measurement ranges: 400 μA / 10 A
- Resistance measurement ranges: 400 Ω / 60 MΩ
- Capacitance measurement ranges: 9.999 nF / 99.99 mF
- Relative capacitance measurement
- Relative capacitance measurement mode
- Diodes and semiconductor junctions at 3.2 V
- Line continuity test (buzzer)
- Non-contact voltage measurement (NCV)
- duty cycle (DCL)
- automatic and manual range selection
- reverse polarity detection
- data storage
- automatic display of minimum and maximum values
- automatic value display
- auto-off
- low battery indicator
- overload protection, fused safety
Technical parameters:
- DC voltage measurement (input impedance within the range of 3 to approx. 10 MΩ):
(range / resolution / accuracy) / 0 V / m / mV. ±0.7% + 3
400.0 mV / 0.1 mV / ± 0.5 % + 2
4,000 V / 1 mV / ± 0.7% + 3
40.00 V / 0.01 V / ± 0.7% + 3.0.0.0 V / ± 0.7% V 0.7% + 3
600.0 V / 1 V / ± 0.7 % + 3
- AC voltage measurement (input impedance approx. 10 MΩ):
(range / resolution / accuracy)
40.00 mV / 0.01 mV / ± 0.01 mV / ± 0.01 mV / ± 0.0 % mV / 0.1 mV / ± 1.0 % + 3
4,000 V / 0.001 V / ± 0.8 % + 3
40.00 V / 0.01 V / ± 0.8 % + 3
400.0 V / 0.1 V / 0.1 V / ± 0.1 V / 0.01 V / ± 0.8 % + 3
400.0 V / 0.1 V / 0.1 V / ± 0.8 % + 3
VAC 200 to 600.0 V / 0.1 V / 1 V / ± 4.0 % + 3
- DC measurement:
(range / resolution / accuracy)
1 μA / 0.0 μA / ± 0.8 % + 3
% + 2
4000 μA / 1 μA / ± 0.7 % + 2
40.00 mA / 0.01 mA / ± 0.7 % + 2
400.0 mA / 0.1 mA / ± 0.7 % + 2 / ± 0.01 mA / ± 0.7 % + 2
1.0 % + 3
10.00 A / 0.01 A / ± 1.0 % + 3
- AC current measurement:
(range / resolution / accuracy)
400.0 μA / 0.1 μA / ± 1.0 μA / ± 1.0 μA / ± 1.0 μA / μA ± 1.0 % + 3
40.00 mA / 0.01 mA / ± 1.0 % + 3
400.0 mA / 0.1 mA / ± 1.0 % + 3
4.000 A / 0.001 A / 0.001 A / ± 1.0 % / 1.0
A / ± 1.2 % + 3
- Resistance measurement:
(range / resolution / accuracy)
400.0 Ω / 0.1 Ω / ± 1.0 % + 2
4,000 kΩ / 0.001 kΩ / 0.001 kΩ / ± 40.0 Ω / ± 0.1 Ω / ± 1.0 % + 2
0.01 kΩ / ± 0.8 % + 2
400.0 kΩ / 0.1 kΩ / ± 0.8 % + 2
4.000 MΩ / 0.001 MΩ / ± 1.2 % + 3
40.00 MΩ / ± 0.01 MΩ / ± 5.
- Capacitance measurement:
(range / resolution / accuracy)
9.999 nF / 1 pF / in REL mode ± 4 % + 10
99.99 nF to 999.9 µF / 0.01 nF ± 4 % / 0.01 nF ± 4 % + 10
9.999 mF to 99.99 mF / 0.001 mF to 0.01 mF / ± 10 %
- Frequency and duty cycle measurement:
(range / resolution / accuracy)
9.999 Hz to /9 ¼.090 MHz / 9 ¾ a. MHz / ± 0.1% + 4
0.1% to 99.9% / 0.1% / Reference only
- Display type: TN LCD
- Display diagonal: 68 mm
- Sampling frequency: 3 / s
- Number of digits: 4000 VA
- Device dimensions: 170 x 80 x 48 mm
- Drop resistance: 1 m
- Weight: approx. 354 g (including batteries)
- Operating temperature: -10 to 50 °C
- The device complies with the following standards:
cETLus, CAT III 600V, double insulation, 600V-PTC overload protection, pollution class II
1 600 V; EN 61326-2-2: 2013
EN 61010-1: 2010; EN 61010-2-030: 2010; EN 61010-2-033: 2012
Compliant with UL STD.: 61010-1, 61010-2-030
Certified to CSA STD. C22.2 No. 61010-1, 61010-2-030, 61010-2-033
- Manufacturer: UNI-TREND
-
Package contents:
- UT139B multimeter with impact-resistant cover
- 1 plastic case
batteries
- Fuse F1: 6 x 32 mm FF 500 mA H 600 V (in device)
- Fuse F2: 6 x 25 mm FF 10 A H 600 V (in the device)
- test leads with probes (included)
- user manual in Czech, Slovak and English
