UNI-T UT501B insulation resistance tester

This product comes with a 3-year warranty. UT501B insulation resistance tester.
The UT500 series electrical insulation testers are used to measure the insulation resistance of electrical equipment and household appliances during regular inspections. This is done by measuring the insulation resistance between electrical circuits or between circuits and ground (equipment ground). The UT500 series can measure insulation resistance, AC voltage, low resistance, PI (polarization index), and DAR (dielectric absorption). The individual devices of the UT500 series differ from each other in their test voltage ranges (UT501A 100V to 1000V, UT501B 250V to 1000V, UT502A 500V to 2500V), maximum measured insulation resistance (UT501A 5G0Ω to 5GΩ, UT502A 0MΩ to 20GΩ), and other parameters.

These testing and inspection devices ensure the proper functioning of transformers, generators, high-voltage motors, power capacitors, power cables, arresters, circuit breakers, electrical machines, and appliances. They are ideal devices for performing electrical maintenance and are manufactured in accordance with IEC61010 and IEC61557 standards.

UT501B product parameters:

– insulation resistance measurement from 0MΩ to 5.5GΩ
– measurement of DC test voltage 250V /<br/- 2500V polarization index and dielectric absorption
– measurement of low resistance from 0 to 200Ω
– Measurement of AC voltage in the range from 30 to 600V (50/60Hz)
-overload indication at >5.5GΩ
– Backlit LCD display with automatic secondary display switching range
– 199> voltage and functions turned on
– red light warning
– power supply 6x 1.5 V (AA) battery
– low battery indicator
– CATIII 600 V surge protection

Technical parameters of UT501B:

– measurement of internal voltage / over-insulation rate / over-insulation resistance
250V / 0.00MΩ – 5.5GΩ / 1.00mA – 1.10mA / 250kΩ
500V / 0.00MΩ – 5.5GΩ / 1.00mA – 1.10mA / 500kΩ – 500kΩ – 0V0Ω /M500. / 1.00mA – 1.10mA / 1MΩ
– open circuit voltage tolerance: + 10%
– short-circuit current of test voltage: approx. 2mA
– Insulation resistance measurement accuracy range: 0.00MΩ to 99.9MΩ: ± (3% + 5) / 100MΩ to 5.5GΩ: ± (5% + 5)

– measurement of the polarization index for a measurement duration of 10 minutes /⥥: 10 minutes PI /⥥ 1 minute 4 / best, 4 to 2 / good, 2.0 to 1.0 / warning, ≤ 1.0 / poor

– measurement of dielectric absorption for 60 sec / 30 sec
– DAR value / criterion: ≥ 1.4 / best, 1.25 / 1, ≤ / 1 / 1. poor

– low resistance measurement (circuit continuity) – range: 0.00Ω to 200Ω
– resolution: 0.01Ω
– Display reset for more accurate measurements: yes, ZERO button
– Open circuit voltage before measurement: approx. 5.0 V
– Current during measurement: approx. 200mA
– accuracy: ± (2% + 3)

– AC voltage measurement – in the range: 30V to 600V (50/60Hz)
– resolution: 1V
– accuracy: ± (2% + 3)

– 60 mm multifunctional LCD display. 34 mm, range 1999
– Display backlight: option of white or red backlight during warning
– automatic interval switching: yes
– buzzer: yes, high voltage indication
– automatic discharge of internal capacity after measurement: yes
– Power supply: 6x alkaline (5V battery, low battery indicator)
- voltage drops below 7V
– weight: 0.7 kg (including battery)
– product dimensions: 150 x 100 x 71 mm
– product color: red and gray
– Conditions for factory calibration: ambient temperature 23°C ± 5°C, humidity 45% to 75%/year, calibration protocol should be recommended once a year. Ordered separately.
– working conditions: 0 °C to +40 °C / relative humidity is 85% or less
– Storage conditions: -20°C to +60°C / relative humidity is 90% or less
– altitude: max. 2000m

Contents of individual packaging:

– UT501B device: 1 piece
– test cables: 1 pair
– alligator clips: 1 pair
– 1.5 V AA battery (LR6): 6 pieces
– instructions: English, Czech, Slovak 1pc

Wholesale packaging:

– standard quantity in a box: 20 pieces
– standard box dimensions: 500 x 380 x 330 mm
– total weight of the box: approx. 20.9 kg

Manufacturer:
https://www.uni-trend.com/