Project Description

AMPROBE (AMB-25 Digital Insulation Resistance Tester)

Features
• Tests insulation of wires, cables, transformers and electrical motors
• Selectable test voltages 250V, 500V and 1000V
• Programmable timer to perform the Dielectric Absorption Ratio Test
• Sensitive Ohmmeter for checking resistance of motor windings

Specifications
Insulation Resistance with 250 V DC Test Voltage:     “0-13.49/134.9/600MΩ 
Accuracy : ± 3% Rdg ± 5 LSD for < 1GΩ ± 5% Rdg ± 5 LSD for > 1GΩ”
Insulation Resistance w/500 VDC Test Voltage:     “0-9.999/99.99/199.9/ 1000 MΩ 
Accuracy: ± 3% Rdg ± 5 LSD for < 1GΩ ± 5% Rdg ± 5 LSD for > 1GΩ”
Insulation Resistance w/ 1000 VDC Test Voltage:     “0-4.999/40.00/400.0/ 2000 MΩ 
Accuracy : ± 3% Rdg ± 5 LSD for < 1GΩ ± 5% Rdg ± 5 LSD for > 1GΩ”
Resistance:     “0 – 9999Ω 
Accuracy : 1% Rdg +2 LSD”