kewtech KEW3128 12kV High Voltage Insulation Tester

The Kewtech KEW3128 is a microprocessor controlled 12kVDC insulation resistance tester capable of providing insulation resistance values of up to 35TΩ.

Crucially, the KEW3128 is able to discharge dangerous capacitive charges, consequent when subjecting large DC voltages across inductive loads for set periods of time; allowing for safe testing of cable lengths and other HV equipment. Ideal for simple compliance testing and leakage current tests, the KEW 3128 can also be used to conduct more in depth diagnostic checks such as: PI - polarisation index measurements DAR - dielectric absorption ratio DD - dielectric discharge SV - step voltage measurement Test measurements can be viewed in ‘live time’ when connected to a PC or laptop, or on the instrument itself which features a large, 320x240 resolution graphical screen.

The in-built graphical screen can be scrolled through and zoomed in on specific points through the whole recording period (up to 90 mins), allowing for instant onsite diagnosis. Moreover, a ‘print screen’ function is provided enabling the user to record a Bitmap (.bmp) image of the screen. The Kewtech KEW3128 12kV tester features an impressive memory, capable of storing 40,000 measurements. When using and ‘KEW Windows’ software package, test data can be downloaded should further test verification or reports be required off-site.
The KEW3128 12kV tester is dual powered and can be operated from a mains supply or from an in-built re-chargeable battery. The insulation tester is supplied and can be operated from within a hard carry case that offers IP68 ingress protection (when the lid is closed), along with test leads, software and USB cable, calibration certificate and user manual.

Kewtech KEW3128 Comes Supplied With:

• 7226 (Line probe)
• 7227 (Line probe with alligator clip)
• 7224 (Earth cord)
• 7225 (Guard cord)
• 7170 (Main cord)
• 8029 (Extension prod)
• 8212-USB-W (USB adaptor with KEW Windows(Software))
• Instruction manual
• Calibration Certificate

Key Features:

• Microprocessor controlled high voltage insulation resistance tester with Diagnostic functions.
• Suitable for analyzing the insulation characteristics of cables, transformers, motors, generators, high-pressure switches, insulators, wiring installations, etc.
• High current for fast testing even with large capacitive circuits. 5mA short circuit test current.
• Measures insulation resistance up to 35TΩ and has large graphic display
• Memory and logging functions comes with dedicated application software
• Filter function and capacitance and leakage measurements
• Polarisation Index, Dielectric discharge, Dielectric Absorption, Step voltage measurement
• 6 ranges: 500V, 1000V, 2500V, 5000V, 10000V, 12000V. Fine adjustment of voltage setting at each range is also possible.
• Graphic representation of the insulation resistance and leakage current versus time on large display with bar graph and backlight.
• Can be operated from built-in rechargeable battery or from AC line.
• Automatic discharge after test with monitoring of the discharge voltage.
• Internal memory can store about 40,000 data (max).
• Robust design for field use with IP64 rating (with lid closed). 

ISSWWW and Kewtech

One of our longest standing manufacturer partnerships and a brand that sells well day in day out for solid dependability and innovation at the price point.
Kewtech manufacture innovative, accurate and reliable test equipment that enables UK electrical contractors to undertake their testing obligations quickly and efficiently.

A product with the “Kewtech” brand has been specifically designed for the UK market by a team with many years of industry experience. We pride ourselves on developing and manufacturing products that have real benefit to the industry.

Kewtech have consistently introduce industry firsts, like our Lightmate testing adaptors, the Pat Adaptor, the MFT with PAT testing plus download and our award winning RB1 Replacement Lamp. Our 17th Edition multifunction testers lead the way in ease of use, loop accuracy and repeatability of reading.