Vasu International

• 3½ Digit Insulation Tester with Backlight
• 1,999 Count
• Data Hold
• Auto Ranging
• 3 in 1 Insulation Resistance Phase Testing / Voltage Testing & Adaptor

• 3½ Digit 1999 Count Large LCD Display
• Range Selection & Single Person Push Button Operation
• LCD with Green Backlight Function with Indicator Switch
• Data Holding Function
• Display with Annunciators
• Measurement of AC Voltage upto 600VAC
• Measurement of Phase Sequence Between (Phase - Phase Voltage) with LED Indicators & Beep Facility
• Auto Range (Insulation Test)
• Red LED Indicator for HV (High Voltage)
• Inbuilt Protection Circuit to prevent the harm of reverse Voltages
• Battery Operated with AC Adaptor
• Suitable for Calculating PI & DAR (Manually)
• As per EMC Standard IEC 61326-1 Class B
• Over Voltage CAT III, 600V
• As per Safety Standard IEC/EN 61010-1 & 61010-31
• IP 44 Protection

• Uses both numerical and analogue bar graph representation of the test results
• It also allows users to carry out comparisons, polarisation index calculations and dielectric absorption calculations
• The AIT 501 is an autoranging device and will automatically choose the applicable range depending on the test

• Battery operation, anti-parallax mirror scale
• Power on or off switch for continuous measurement; Output high voltage LED indicator
• AC voltage measurement facility; Accuracy 5 percent indicated value
• Accessories: Test leads, carrying case, manual

• Selectable test voltage from 250V, 500V, 1000V, 2500V, 5000V DC.
•  Insulation resistance measurement up to 1T
• Polarization index measurement facility 
• Short circuit current < 1.4 mA. approx
• AC/DC voltage measurement up to 600V
• Two programmable timers from 0 Sec to 99 minutes
• Pleasant LCD Backlight
• Internal rechargeable battery
• Safety – IP 54, CAT IV 600V, and CE conformity

Features:-
• Bargraph to display insulation resistance
• Displays the value of external AC voltage along with flashing symbols
• Auto null function to automatically subtract the test lead resistance before displaying the real continuity resistance value.
• Live circuit warning beeper
• Releasing the test button automatically discharges the charges stored in the circuit under test.
• 200mA continuity measuring current to IEC 61557.
• Minimum 1mA current on insulation tests to IEC 61557.