6. Operation
Remote Control:
The electrode rotation speed is set by an analog signal. The gas purge function is started by a TTL signal ON/OFF and operates on active low.
Fig. 6.1 Main area picture of electrode assemblies in RRDE-3A
Each connector is connected properly with each electrode, and make sure that its electrical connection is confirmed.
Fig. 6.2 Ring or Disk working electrode lead connection.
No.1 is disk electrode and No.2 is ring electrode. Each electrical connection is completely independent.
Front panel components in RRDE-3A Ver.3.0
Fig. 6.3 Front panel of the RRDE-3A Ver.3.0
2. Power On/Off Switch
3. rpm LED: The LED is ON when rotation is turned ON,
either remotely or manually
4. Rotation control switch
(Set, Local, Remote)
5. Rotation speed knob (X10)
6. Purge LED: The LED is ON when purge is turned ON,
either remotely or manually
7. Gas purge switch
(Set, Local, Remote)
8. Gas purge flow control knob
9. Purge time knob
10. Motor shaft assembly
11. Reference electrode
12. Counter electrode
13. Teflon tube for gas purge
14. Teflon cap
15. Working electrode
16. Sample vial for alkaline solution
17. Silicon sheet