Rotating ring electrode device manufacturer

1. Product Description: Manufacturer of Rotating Ring Disk Electrode Device

The RRDE-8A rotating ring disk electrode device is based on RRDE-6A, using a rotating shaft and an electrolytic cellspecialThe sealed contact design, combined with the fluorine rubber ring sealed electrolytic cell, achieves excellent performanceThe sealing effect of the testing system. Electrolytic cells can be customized according to customer needs. There are single-layer and double-layer electrolytic cells, and the double-layer can be temperature controlled by water bath.

2.1.1Rotating ring disk electrode devicecharacteristic

1. Compact exterior design, easy to operate
2. Types of RRDE electrode tips: Pt/Pt, GC/Pt, etc
3. The electrode rotation and gas blowing functions can be remotely or manually controlled
4. The lead wires of the electrolytic cell can be directly connected to any potentiostat
5. RRDE and RDE electrode tips are interchangeable
6. Speed range of 50~9000rpm (recommended to use speeds of 2000-3000rpm or lower when using DRE)
7. LCD display rotation speed and blowing time
Timing control of ON/OFF of the 8 blow air valve (can be set to 4999 seconds)
9. Soft connections are used between the shaft and the motor, effectively eliminating the interference of motor noise on the shaft
The inner and outer shafts of the 10 axis component are made of polytetrafluoroethylene material to reduce noise interference
11. The rotating part is inside the electrolytic cell, which can maintain the complete sealing of the entire system during the rotation process
12. The collection efficiency of the ring disk electrode head is 42.4%
13. RRDE electrode head disk ring spacing: 500 μ m

2.1.2 Technical Parameters

2. Back control and connection:

2.2. Back panel control and connection:

Figure 2-1 Names of components in the back panel:

1. Remote control connection port
   2. Power cord socket
   3. Grounding terminal
   4. Measure the intake connection port for blowing and sweeping the measuring pool
   (Used for connecting to the external gas supply pipeline.) Note: The maximum intake pressure is 5 psi

3. Connection method with potential meter:

2.3 Connection Method between RRDE-8A and Potentiometer
Same as the RRDE-6A method.

4. Connection of electrolytic cell:

2.4. Connection of electrolytic cell

The reference electrode and counter electrode signal lines extend from the potentiostat. The wire connector is a press type clamp, which only needs to be clamped onto the corresponding electrode lead to complete the connection (Figure 4.1). The color of the crocodile clip corresponds to the different electrodes connected to it.
The signal interface between the ring electrode and the disk electrode is located on the left side of the panel.

Figure 4.1 Electrolytic cell and RRDE-8A

5Gas interface connection:

2.5. Gas inlet connection

Figure 5.1 RRDE-8A Gas Inlet Connection

RRDE-8A comes with a 2mm outer diameter polyethylene pipe and gas pipeline joint. Insert one end of the connector into the GAS interface end on the rear side of RRDE-8A. To connect the gas pipeline, simply connect the joint (see Figure 5.1).
The open end of the PTFE tube is connected to a stable gas supply source, and the inlet gas pressure must not exceed 5 psi.
To remove the connected trachea from RRDE-8A, simply turn the left interface cap and then unplug the connector along with the trachea from the gas interface terminal of RRDE-8A.

Blowing gas pipeline connection:
RRDE-8A has the ability to blow sample solutions with inert gas. Purging gas treatment usually involves introducing nitrogen or nitrogen into a solution and using a bubbling method to dissolve oxygen. The blowing gas pipeline consists of two small PTFE tubes in a PTFE cup cover.
The one with a black label is for protecting the trachea, and the outlet of the trachea should be above the liquid level of the sample. The other one should be immersed in the sample solution. If necessary, the position of the black label can be moved and the length of the protective trachea can be adjusted.

6. Electrode installation:

2.6. Electrode installation
Before disassembling and assembling the electrodes, the power supply of the RRDE-8A device should be turned off first, and all leads connecting the electrodes (reference electrode, counter electrode, ring/disk electrode) to the potential meter should be removed first. Then loosen the bright colored hand tightening screw on the white PTFE plate in a counterclockwise direction, move the motor and rotating shaft assembly upwards as a whole to position the rotating working electrode above the electrolytic cell cover, and tighten the bright colored hand tightening screw on the PTFE plate to fix it in place. Then rotate the rotating shaft assembly of the motor clockwise to a position of about 180 degrees. The working electrode is connected to the rotating shaft component by twisting. The disc electrode conducts current by contacting the disc shaft with a contact pin installed at the tip of the shaft. The contact pin is embedded inside and cannot be touched by hand, avoiding the danger of accidental contact during operation. Carefully unscrew the electrode counterclockwise from the shaft to remove the working electrode.

Figure 6-1 Removing the working electrode from the motor rotating shaft assembly of RRDE-6A

7. Front panel components:

2.7. Names of components on the front panel of RRDE-8A

RRDE-8A Rotating Ring Disk Electrode

Figure 7.1 Front Panel

1. LCD digital display screen
2. Rotation function LED indicator light: Whether remotely or manually controlled, as long as the rotation is in the on state, the LED indicator light will light up
3. Rotary control switch (ON/Set,/Remote)
4. Speed adjustment knob
5. LED indicator light for blowing function: Whether remotely or manually controlled, as long as the blowing function is turned on, the LED indicator light will light up
6. Blow off gas control switch (ON/Set,/Remote)
7. Adjustment knob for blowing airflow size
8. Purging time adjustment knob
9. Motor shaft components
10. Reference electrode
11. Electrode
12. Blow the trachea
13. PTFE cup cover
14. Working electrode
15. Sample pool cup
16. Silicone pad (205X90)

Rotating ring electrode device manufacturer