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The TKED 1 instrument can be used as part of a predictive maintenance programme to minimise the effects of electric currents on bearings used in electric motors.
Electrical discharges are a result of motor-shaft voltages discharging to earth through the bearing, causing electrical erosion, lubricant degradation and ultimately bearing failure.
The use of variable frequency drives has made the problem more common and severe.
The electrical-discharge detector pen detects electrical discharges in a non-contact manner, enabling quick diagnosis.
The number of electrical discharges counted is displayed on an LCD screen and can be counted over 10 seconds, 30 seconds or indefinitely, adapting to applications.
The TKED 1 is an easy-to-use handheld instrument consisting of display unit and antenna.
The pen is operated by three standard AAA batteries and can be carried around in a pocket.
An LED backlit screen allows use in poor visibility environments; alternatively users can turn off the backlight display and the auto power-off function if additional battery life is required.
The pen is supplied in a sturdy carrying case with batteries, a spare antenna and instructions for use.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 1200 KOYO | 10 | 30 | 9 |
| 1205 KOYO | 25 | 52 | 15 |