Telonic Instruments Ltd

Introducing the Microtest 7640/7641 Hi-Pot Safety Testers!

03-11-2026

The MICROTEST 7640 and 7641 are versatile three-in-one electrical safety testers combining AC flash, DC flash and insulation-resistance testing in a single platform. Both models provide testing up to 5kV AC, 6kV DC and 100GΩ, with programmable test sequences, arc detection, safety interlock protection and comprehensive connectivity. The 7640 offers a straightforward single-channel solution, while the eight-channel 7641 is designed for multi-point testing and expandable automated production systems.

Key Features and Performance

Three-in-one AC withstand, DC withstand and insulation-resistance testing
AC hipot output from 10V to 5000V, with up to 30mA rated current
DC hipot output from 10V to 6000V, with up to 10mA rated current
Insulation-resistance testing from 200kΩ to 100GΩ
Choice of single-channel 7640 or eight-channel 7641
7641 expandable to as many as 72 channels with compatible 7508A or 7516A scanner boxes
Programmable ramp, dwell and fall times from 0.1 to 99.9 seconds
Adjustable arc detection with OFF and sensitivity levels 1 to 9
True RMS measurement and fixture-leakage compensation
Safety interlock protection
4.3-inch, 480 × 272 colour TFT display
RS-232, Remote, USB Host, USB Device and EXT I/O interfaces
Internal test-program storage and removable USB storage
PC connectivity for remote programming, control and test-data logging