Description
About this model
The UT502A Insulation Resistance Tester CAT III 600V is a professional-grade megohmmeter designed for electrical contractors, facility maintenance teams, and industrial electricians across the UAE. This advanced insulation tester measures insulation resistance up to 20 gigaohms using test voltages of 500V, 1000V, and 2500V, making it ideal for high-voltage cable testing, motor insulation verification, and transformer diagnostics. With Polarization Index (PI) and Dielectric Absorption Ratio (DAR) testing capabilities, low resistance measurement, AC voltage detection, and full IEC 61557 compliance, the UT502A delivers comprehensive electrical insulation analysis for critical safety inspections throughout Dubai, Abu Dhabi, Sharjah, and all Emirates.
Advanced Features of UT502A Megohmmeter
The UT502A offers three selectable test voltages - 500V, 1000V, and 2500V - enabling insulation resistance testing across diverse electrical systems from residential wiring to industrial high-voltage equipment. The measurement range extends to an impressive 20 gigaohms at 2500V, with accuracy of ±3% for readings up to 99.9 megohms and ±5% from 100 megohms to 9.9 gigaohms. This exceptional range accommodates everything from cable insulation testing to aged equipment evaluation.
Polarization Index (PI) testing calculates the ratio of 10-minute to 1-minute insulation resistance readings, providing critical insight into insulation condition and moisture contamination. Dielectric Absorption Ratio (DAR) compares 60-second to 15-second and 60-second to 30-second readings for rapid insulation quality assessment. These advanced diagnostic functions distinguish good insulation from deteriorating conditions before catastrophic failures occur.
Low Resistance and Voltage Measurement
Beyond insulation testing, the UT502A measures low resistance from 0.01 to 200 ohms with ±2% accuracy, essential for verifying bonding connections, grounding systems, and circuit continuity. AC voltage measurement to 600V enables live circuit detection before insulation testing begins. The 2000-count digital display with 70.6mm x 34mm screen provides clear readings in field conditions, while the LCD backlight ensures visibility in electrical vaults and dimly lit equipment rooms.
Applications for UT502A Insulation Resistance Tester
- High-voltage cable insulation testing and verification
- Electric motor winding insulation diagnostics
- Transformer insulation resistance measurement
- Generator insulation condition assessment
- Industrial equipment preventive maintenance testing
- Building electrical system safety inspections
- Solar panel installation insulation verification
- Switch gear and circuit breaker testing
- Electrical installation commissioning
- Marine electrical system insulation checks
- Aviation ground support equipment testing
- Oil and gas facility electrical safety compliance
- Power distribution system maintenance
- Manufacturing equipment electrical certification
Safety and Compliance Standards
The UT502A meets rigorous IEC 61557 international standards including IEC 61557-1:2007, IEC 61557-2:2007, and IEC 61557-4:2007, ensuring compliance with global electrical safety regulations. CAT III 600V safety rating certifies the instrument for use on distribution circuits and fixed installations. High voltage indication alerts operators when dangerous voltages are present. Automatic discharge function safely dissipates stored charge from capacitive loads after testing, protecting both technician and equipment.
Multiple safety alarms include light and buzzer warnings for hazardous conditions. Overload indication prevents damage from excessive voltage or current. The less than 2mA short-circuit current ensures operator safety even during accidental probe contact. Low battery indication and auto power-off preserve battery life during field operations. Six LR6 AA batteries provide extended operation for comprehensive facility surveys.
Complete UT502A Testing Kit
The comprehensive package includes batteries, professional test leads, alligator clips for secure connections, gallus for wire attachment, and test probes for precision measurements. Premium gift box packaging with protective carrying bag safeguards equipment during transport. Comprehensive English manual provides testing procedures and interpretation guidelines. The 500g weight and 150mm x 100mm x 71mm dimensions balance portability with rugged field durability.
Why Purchase UT502A Insulation Tester from UAZON.AE
UAZON.AE supplies genuine UT502A Insulation Resistance Testers with complete factory accessories and full manufacturer warranty across the UAE. Our competitive pricing delivers professional electrical testing equipment at exceptional value for maintenance departments and electrical contractors. Fast shipping throughout Dubai, Abu Dhabi, Sharjah, and all Emirates ensures your megohmmeter arrives ready for immediate deployment. Expert technical support provides guidance on insulation testing procedures and compliance requirements for UAE electrical safety standards.
How to Test Insulation Resistance with UT502A
Before testing, verify circuits are de-energized using the AC voltage measurement function. Disconnect equipment under test from power sources. Select appropriate test voltage based on equipment rated voltage - typically 500V for systems below 500V, 1000V for systems 500V to 1000V, and 2500V for high-voltage applications. Connect test leads to the UT502A and attach probes or clips to the circuit under test. Press and hold the test button to apply voltage and measure insulation resistance. For PI testing, continue holding for 10 minutes while the meter automatically calculates the ratio. For DAR testing, the meter computes ratios at specified intervals. After testing, the automatic discharge function safely releases stored energy. Record readings and compare against manufacturer specifications or industry standards for pass/fail determination.