Electrical discharge detector

Detect electrical discharges in electric motor bearings

Electrical Discharge Detector pen TKED 1
Electrical Discharge Detector pen TKED 1
The SKF Electrical Discharge Detector Pen (EDD Pen) is a simple to use hand-held instrument for detecting electrical discharges in electric motor bearings. Electrical discharges are a result of motor shaft voltages discharging to earth through the bearing, causing electrical erosion, lubricant degradation and ultimately bearing failure.
Electric motors are more vulnerable to suffer electrical erosion in bearings when controlled by a Variable Frequency Drive. When incorporated into a predictive maintenance programme, the EDD Pen can help detect bearings more susceptible to failure, and significantly prevent unplanned machine downtime.
  • Unique remote solution allows operation at a distance from the motors. This helps protect the user from touching machinery in motion
  • SKF technology*
  • No special training required
  • Capable of detecting electrical discharges on a time base of 10 seconds, 30 seconds or indefinite
  • LED Backlit screen, allows use in dark environments
  • IP 55 can be used in most industrial environments
  • Supplied standard with batteries, a spare antenna and language free Instructions for use in a carrying case

*Patent applied for.

SKF TKED1 (fig 1)
Supplied standard with batteries, a spare antenna and language free Instructions for use in a carrying case
Technical data
Designation
TKED 1
Description
SKF Electrical Discharge Detector Pen
Power supply
4,5V – 3 x standard AAA batteries (LR03, AM4)
Time control:
- pre-sets
- default
 
10 or 30 seconds
indefinite
Operational and storage temperature
 
0º to 50 °C (32 to 122 ºF)
-20 to 70 °C (-4 to 158 ºF)
IP level
IP 55
Display
 
LCD counter range: 0 to 99 999 discharges. 
User selectable backlight and low battery warning
Case Dimensions (l x w x h)
260 x 85 x 180 mm (10.3 x 3.4 x 7.0 in.)
Total case and contents weight
0,6 kg (1.35 lb)
SKF logo