Multiméter UNI-T UT71B

Description
The UT71 series includes state-of-the-art intelligent, medium-sized handheld multimeters with automatic and manual range switching and a main display display range of ± 20,000 or 40,000 and two additional auxiliary displays. The devices belong to the upper middle class, excel in quality design and reliability and are also suitable for industrial use. The UT71 series can quickly solve complex problems in electronics, factory automation, distribution and electronic engineering equipment. The UT71 series allows you to set upper and lower measurement limits, which is a very useful feature to improve control of mass electronics production and screening efficiency. They allow measurement of AC / DC voltage and currents, resistance, diode test, continuity test, measurement of capacitance, frequency, temperature, current loop 4-20mA (except UT71A) and power consumption (for UT71E). The devices allow data storage and connection via USB with optical separation or via Bluetooth adapter UT-D07A, which must be purchased separately. You can pair your device with mobile phones or tablets by downloading the appropriate software from the Apple Store or Google Play Store. The information on the display is dark on a light background. Protection of current ranges is performed by tubular fuses (range 10A with fuse F 10A/250V (ø5 x 20mm); range mA/µA with fuse F 500mA/250V (ø5 x 20mm)). The multimeter is powered by a 9V battery (6F22). The measuring range of quantities can be selected automatically or manually. The package includes measuring cables with spikes, as well as batteries.

UT71B is a top digital multimeter TRMS, which will find use in control in electronic production, in factory automation and in the distribution of electricity energy. We provide an extended 3-year warranty for this product.

Product parameters :

- fully complies with IEC / EN611010, and have double insulation
- included in the CAT category. III 1000V - internal el. installation including three-phase distribution
- included in the CAT category. IV 600V - outdoor el. installation (securing elements, beginning of internal installation)
- the maximum display of the main display is 20000, of the sub displays 4000
- type backlit LCD display with dark data on a light background, 3 backlight values
- the display range is ± 20000 for measuring voltages, currents, resistances and frequencies.
- refresh rate for most measurements 2 to 3 times per second
- analog bargraph indicator 40 segments, speed 10 views/sec.
- setting ranges automatic or manual
- measuring ranges of AC voltage (alternating current): 2 V/1000 V, True RMS 0 to 1000 V, bandwidth 100 kHz
- AC current measuring ranges: 200 μA/10 A bandwidth 45 Hz to 10 kHz
- measuring ranges of DC voltage (direct current): 200 mV/1000 V
- DC current (DC) measuring ranges: 200 μA/10 A
- measuring ranges of resistance: 200 Ω/20 MΩ
- capacitor capacity measuring ranges: 20,000 nF / 20.00 mF
- frequency measuring ranges: 20 Hz/200 MHz
- temperature measuring ranges: -40°C/1000°C or -40°F/1832°F
- supplied temperature sensor type "K" for temperatures up to 230°C
- measurement of current loop from converters of non-electric quantities 4 to 20mA
- high accuracy
- measurement of effective values ​​of voltage st. voltages and currents (TRMS)
- during the measurement of alternating voltages, it is possible to measure the frequency or voltage alternation on two secondary displays
- on the secondary display it is also possible to measure the AC component superimposed on the DC voltage
- relative measurement mode
- measuring MAX and MIN peaks, freezing the value on the display (Data Hold)
- automatic shutdown (sleep on inactivity)
- protection of voltage inputs against overload above 1000V
- protection of current inputs by fast fuses
- input impedance 10MΩ, in the range 200mV/DC to 2.5GΩ
- test of diodes and semiconductor transitions with voltage 0 to 3V
- supplied USB cable with converter including software on CD
- it is possible to buy a Bluetooth adapter UT-D07A
- measurement in elmag. field is also possible. Field with intensity up to 1V/m with additional error 5%.


Technical parameters :

- DC voltage measurement (input impedance is in the range of 200mV 2.5GΩ, in other ranges 10MΩ):
( range / resolution / accuracy )
200.00 mV / 0.01 mV / ± 0.1% + 8
2.0000 V / 0.0001 mV / ± 0.1% + 8
20,000 V / 0.001 mV / ± 0.1% + 8
200.00 V / 0.01 V / ± 0.1% + 8
1000.0 V / 0.1V / ± 0.15% + 8
Overload protection 1000V.


- AC voltage measurement (input impedance approx. 10MΩ,) :
( range / resolution / accuracy in the range 45Hz to 1kHz / 1kHz to 10kHz / 10kHz to 100kHz)
2.0000 V / 0.0001 V / ± 0.8% + 40 / ± 3% + 40 / ± 7% + 40
20,000 V / 0.001 V / ± 0.8% + 40 / ± 5% + 40 / ± 7% + 40
200.00 V / 0.01 V / ± 0.8% + 40 / ± 5% + 40 / unspecified
1000.0 V / 0.1 V / ± 1.5% + 40 / ± 6% + 40 (1kHz až 5kHz)/ ±10% + 40 (5kHz až 10kHz)
Overload protection 1000V, AC + DC measurement possible.


- DC current measurement :
( range / resolution / accuracy)
200.0 μA / 0.01 μA / ± 0.2% + 20
2000.0 μA / 0.1 μA / ± 0.2% + 20
20,000 mA / 1 μA / ± 0.2% + 20
200.0 mA / 0.01 mA / ± 0.2% + 20
10,000 A / 1m A / ± 0.8% + 30
Overload protection 500mA, 10 A.


- AC current measurement :
( range / resolution / accuracy in the range 45Hz to 1kHz / 1kHz to 10kHz )
200.0 μA / 0.01 μA / ± 1% + 15 / ± 2% + 40
2000.0 μA / 0.1 μA / ± 1% + 15 / ± 2% + 40
20.000 mA / 1 µA / ± 1% + 15 / ± 2% + 40
200.000 mA / 10 µA / ± 1% + 15 / ± 2% + 40
10.000 A / 1 mA / ± 2% + 20 / ± 6% + 40
Overload protection 500mA, 10 A.


- Resistance measurement :
( range / resolution / accuracy)
200.00 Ω / 0.01 Ω / ± 0.5% + 20
2.0000 kΩ / 0.0001kΩ / ± 0.5% + 20
20.000 kΩ / 0.001 kΩ / ± 0.5% + 20
200.00 kΩ / 0.01 kΩ / ± 1% + 20
2.0000 MΩ / 0.0001 MΩ / ± 1% + 40
20.000 MΩ / 0.001 MΩ / ± 1.5% + 40
Overload protection 1000V.


- Capacitor capacity measurement :
( range / resolution / accuracy)
20 nF / 0.001 nF / ± 1.5% + 20
200 nF / 0.01 nF / ± 1.5% + 20
2 µF / 0.0001 µF / ± 1.5% + 20
20 µF / 0.001 µF / ± 1.5% + 40
200 µF / 0.01 µF / ± 1.5% + 40
2 mF / 0.0001mF / ± 5% + 40
20 mF / 0.001mF / unspecified
Overload protection 1000V.


- Frequency measurement :
( range / resolution / accuracy)
20 Hz / 0.001 Hz / ± 0.1% + 15
200 Hz / 0.01 Hz / ± 0.1% + 15
2 kHz / 0.0001 kHz / ± 0.1% + 15
20 kHz / 0.001 kHz / ± 0.1% + 15
200 kHz / 0.01 kHz / ± 0.1% + 15
2 MHz / 0.0001 MHz / ± 0.1% + 15
20 MHz / 0.001 MHz / ± 0.1% + 15
200 MHz / 0.01 MHz / unspecified
Overload protection 1000V.

Temperature measurement (°C) :
( range / resolution / accuracy)
-40°C to +40°C / 0.1°C / ± 3% + 30
+40°C to +400°C / 0.1°C / ± 1% + 30
+400°C to +1000°C / 0.1°C / ± 2.5%

- Temperature measurement (°F) :
( range / resolution / accuracy)
-40°F to +32°F / 0.1°F / ± 3% + 30
+ 32°F to +752°F / 0.1°F / ± 1% + 30
+ 752°F to +1832°F / 0.1°F / ± 2.5%
Overload protection 1000V.


- Current loop measurement 4 to 20mA
( range / resolution / accuracy)
(4 to 20mA)% / 0.01% / ± 1% + 50
Overload protection fuse F500mA/250V.


- Diode test :
voltage at terminals without load 2.8 V
the voltage drop across a good silicon junction is 0.5 to 0.8 V
measurement resolution 0.0001 mV


- Conductivity test :
voltage at terminals without load 1.2 V
the buzzer tone will not sound if the resistance is greater than 60 Ω
the tone sounds if the resistance is less than 40 Ω

General characteristics :
- power supply: 9V battery (6F22)
- LCD display: 73 mm x 50 mm with backlight, 2 brightness levels, or off
- product color: red and gray
- net weight of the product: 384 g
- product size: 200 x 93 x 40 mm


Contents of individual packaging :

- UT71B multimeter with storage case
- battery 9V battery (6F22)
- fuse F1: F 10A / 250V (ø5 x 20mm) - in the device
- fuse F2: F 500mA / 250V (ø5 x 20mm) - in the device
- USB cable with opto-el. converter and software CD
- test cables with spikes in the category CAT III 1000V, CAT IV 600V
- temperature sensor type "K" for temperatures up to 230°C
- instructions for use in Czech, Slovak and English