The UT-501B measuring device is a specialized instrument for measuring insulation resistance in the range of 0 MΩ to 5.5 GΩ. Attention! To accurately measure the insulation resistance value, applying high voltage is necessary. You must exercise extreme caution during measurement and strictly adhere to the recommendations in the device's manual.

Resistance Measurement:

• Test Voltage 250 V: 0 ... 5.5 GΩ
• Test Voltage 500 V: 0 ... 5.5 GΩ
• Test Voltage 1000 V: 0 ... 5.5 GΩ

Measurement Accuracy:

• 0 MΩ ... 99.9 MΩ ± (3 % + 5)
• 100 MΩ ... 5.5 GΩ ± (5 % + 5)

Open Circuit Voltage: Test Voltage + 10 %
Test Current: 1 mA ... 1.1 mA
Short Circuit Current: < 2 mA

AC Voltage Measurement: 30 V ... 750 V ± (2 % + 3) at 1 V
DC Voltage Measurement:

• Low Resistance Measurement: 0 Ω ... 200 Ω ± (2 % + 3) at 0.01 Ω

Automatic Scale Switching: ✔
RS - 232: -
USB: -

Main Features:

• Warning against using high voltage during measurement
• Measurement of Polarization Index (PI)
• Measurement of dielectric absorption: 60 s / 15 s, 60 s / 30 s
• Automatic shutdown
• Zeroing function for low resistance measurement
• Large, easy-to-read LCD display with backlight
• Low battery signal
• Aesthetic and solid construction

Operating Temperature: 0 °C ... 40 °C
Permissible Relative Humidity of the Environment: ≤ 85 % (without condensation)
Power Supply: 6 x 1.5 V battery, AA type /LR6/FR6 – included.
Weight: 0.42 kg.
Dimensions: 150 x 100 x 71 mm.
Manufacturer/Brand: UNI-T.
Warranty: 2 years.