Specification :

Digital High Voltage Insulation Tester
KEW 3128
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.
• 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 43, 000 data ( max) .
• Robust design for field use with IP64 rating ( with lid closed) .

Spesifications
Insulation Resistance
Rated Voltage 500V 1000V 2500V 5000V 10000V 12000V
Max.Measurement Value 500© 1T© 2.5T© 5© 35 T©
Accuracy 50G-500G© ± 5% rdg± dgt* Accuracy is not guaranteed with setting of 250V or less 0-100G© 0-250G© 0-500G© 0-1T©

Short circuit current Max. 5.0mA
Load resistor to output rated Voltage 0.5M© or more 1M© or more 2.5M© or more 5M© or more 20M© or more 24M© or more
Output Voltage
Rated Voltage 500V 1000V 2500V 5000V 10000V 12000V
Monitor Accuracy ± 10% ± 20V ± 10% ± 20V ± 10% ± 20V ± 10% ± 20V ± 10% ± 20V ± 10% ± 20V
Output Accuracy 0~ + 20% 0~ + 10% 0~ + 10% 0~ + 10% -5~ + 5% -5~ + 5%
Voltage Measurement
Measuring Range DCV : ± 30~ ± 600V, ACV : 30~ 600V( 50/ 60Hz)
Accuracy ± 2% rdg± 3dgt
Current Measurement
Measuring Range 5.0nA~ 2.40mA ( depending on the insulation resistance)
Capacitance measurement 5.0nF~ 50.0µ F 5.0nF~ 1.0µ F
Accuracy ± 5% rdg± 5dgt
Power Source rechargeable lead storage battery 12V , AC poer supply 100V-240V, 50/ 60Hz
Dimensions 330( L) x 410( W) x 180( D) instument and hard case
Weight 9 Kg approx instument and hard case
Accessories Standard