5. Remote control
The remote connector of the CS-3A Cell Stand allows the stirring and gas purge functions controlled by an external unit. The CS-3A is specifically controlled by the appropriate commands from CHI Electrochemical Analyzer. These functions can be activated from any controller providing a contact closure to ground and at 5V DC and 100 mA power supply, Faraday cage and cell holder.
- Warning:
Do not use Hydrogen gas as purge, because teflon tube is used for gas flow, and a small molecule such as Hydrogen is penetrated from the teflon tube. Hydrogen gas has a possibility to leak from the teflon tube. Please use inert gas such as Nitrogen or Argon gas as purging purposes.
Faraday cage (CS-3A) will shield the cell from most of the electrical interferences. The CS-3A cell door must be closed during the experiments for proper shielding. The Faraday cage should be put on a relatively vibration free table and should not be moved during the experiment. Movement of the cell leads during an experiment may result in a noisy voltammogram.
Disconnected wires (cell leads) passing through the wall of the Faraday cage are sources of the line frequency interference for small signals. To get the best results, we recommend to remove any unnecessary leads and set a proper ground line.
Sample glass cell is placed on the stainless steel pan in the Faraday cage. The teflon cap is moved down onto the glass cell. The electrodes are inserted into the teflon cap and connected by those cell leads. The teflon
cap slides out of the cell top positioner for easy cleaning.
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| Figure 5. Setup protocol of blanket purge tube in CS-3A |
| 5A: There are 2 kinds of gas purge 1/8" teflon tubes (Test and Blanket sample tubes), and a 1/16" teflon tube is connected with the blanket tube using silicon joint tube 5B: the connected teflon tube 5C: The teflon tube is passed into the center of Teflon cell vial cap, and positioned into the air space of sample solution 5D: After fixing the teflon tube, Working, Counter and Reference electrodes are set in the cell vial |
