RRDE-3A Rotating Ring Disk Electrode Apparatus

Rotating Ring Disk Electrode Rotator (RRDE-3) apparatus

RRDE-3A is a constant rotation system for use in hydrodynamic modulation rotating ring disk electrochemistry. A 7 mm diameter electrode with short stainless steel shaft provides for a miniature and concentric circle electrode system that is capable for highly accurate rotation and modulation even at radial modulation rates or wave forms.

RRDE-3A is electronically controlled by a proportional-integral closing loop circuit driving as an DC servo-motor. Electrodes are small and rapidly interchangeable. The unit also provides an adjustable valve system for inert gas purging inside the cell vial.

RRDE-3A is able to be operated as a stand-alone unit and directly controlled by CHI, BASi Electrochemical Analyzers or other instruments. When the analysis starts, a built-in gas control allows purging the sample.

Besides, the access to glass cell is easy for rinsing, cleaning, and replacing the electrodes. It is easy to remove and replace the cell vial.

Features and Specifications

Operable as RDE and RRDE
Remote- and manual-controlled rotation and gas purge
Gas line connector is available
Cell lead connects to all potentiostats
Open architecture for easy access to cell
Compact design & easy operation
Shaft is completely insulated to the motor by coupling unit to reduce motor noise
In the shaft assembly, the inner and outler tube is completely insulated by Teflon spacer to reduce noise

Size:	190 (w) x 230 (d) x 400 mm (h)
Weight:	6 kg
Rotational range:	100 to 8,000 rpm
Rotation stability:	Error, < 1% at < 100 to 1,000 rpm < 0.5% at > 1,001 rpm
Ring/Disk insulation resistance:	> 10 M ohm
Electrode to lead pin contact resistance:	5 ohm
Rotator shaft:	Stainless steel
Motor:	12 V, ironless core, low inertial DC servo
Power:	< 100 VA 100-240 VAC, 50/60 Hz
Operating temperature:	10 to 50°C
Operating temperature:	10 to 50°C
Relative humidity:	≤ 80%
Remote control:	One volt corresponds to 1,000 rpm Motor ON/OFF TTL or relay input to back panel connection Purge TTL or relay input to back panel connection

Accessories

Option
For RRDE electrode Click here for detail	Platinum ring disk working electrode
	Platinum ring-glassy carbon disk working electrode
For RDE electrode Click here for detail	Glassy carbon disk electrode
	Platinum working disk electrode
	Gold working disk electrode
For DRE electrode Click here for detail	DRE-PGK Pt ring/GC disk replaceable electrode
	DRE-GCK disk replaceable electrode
Electrodes of other materials and diameters will be fabricated on a custom basis.

last modified 2015/09/24