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1. Overview
The UT516B is a digital high voltage insulation resistance tester with 6 ranges: 500V, 1000V, 2500V, 5000V,
10000V and 12000V. Fine adjustment of voltage with 10% step at each range (except 12000V) is available.
Test data can be saved in the tester memory and transferred to a PC via the dedicated USB cable, or be
transferred to a PC in real time.
2. Features
Designed to meet IEC61010-1, CAT IV 600V and Pollution Degree 2 safety standards
For insulation resistance test, max test voltage: 12kV, max test resistance: 10TΩ, max short-circuit
current: 5mA
Automatic display of Dielectric Absorption Ratio (DAR) and Polarization Index (PI)
Large memory for saving up to 999 sets of test data
Dual power supply: Dedicated power adapter (DC15V, 1A) or 10 pcs 1.5V alkaline batteries (Lr14)
5.1-inch industrial display (320×240 pixels)
Simultaneous display of insulation resistance and leakage current values in the test
PC software for data analysis
Green light indication for POWER button and red light warning for TEST button
Auto discharge function: When insulation resistance like a capacitive load is tested, electric charges
stored in capacitive circuits are automatically discharged after testing. Discharge progress can be displayed.
Backlight Function: To facilitate working at dimly illuminated location or at nighttime
UT516B User Manual
UT516B User Manual
1. Overview ------------------------------------------------------------------------------------------------------------------- 4
2. Features -------------------------------------------------------------------------------------------------------------------- 4
3. Accessories ---------------------------------------------------------------------------------------------------------------- 5
4. Safety Instructions ------------------------------------------------------------------------------------------------------- 5
5. Electrical Symbols ------------------------------------------------------------------------------------------------------- 7
6. External Structure -------------------------------------------------------------------------------------------------------- 8
7. Indicators and Buttons -------------------------------------------------------------------------------------------------- 9
8. Operating Instructions ------------------------------------------------------------------------------------------------- 15
9. Specifications ------------------------------------------------------------------------------------------------------------ 31
10. Communication Function (Including Software) ------------------------------------------------------------------ 35
11. Use of Power Adapter -------------------------------------------------------------------------------------------------- 36
12. Test Probe Metal Parts and Replacement ------------------------------------------------------------------------ 37
13. Maintenance ------------------------------------------------------------------------------------------------------------- 38
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