Regenerant flow path connections in the AutoSuppression External Water Mode - ERD 500 - ERS 500e - ERS 500 Carbonate - DRS 600 - Regenerant flow path connections in the AutoSuppression External Water Mode - ERD 500 - ERS 500e - ERS 500 Carbonate - DRS 600

Procedure

1. Make the following air line connections:
1. Locate the pieces of tinted 1/8” o.d. plastic tubing (Item # 030089) supplied in the Installation Parts Kit.
2. Push the end of one piece of 1/8” o.d. tubing over the barbed fitting of the regulator. Connect the other end of the tubing to the source of air pressure.
3. Push one end of the second piece of 1/8” o.d. tubing over the other barbed fitting of the regulator. Push the other end of this tubing over the barbed fitting (Item # 030077) in the pressure inlet of the plastic reservoir (see the following figure).

4. 

2. Make the following water line connection:
1. Use a coupler (Item # 039056) to connect one end of the 30” tubing assembly (Item # 035727) that comes in the Installation Kit to the water reservoir. Connect the other end of this tubing to the REGEN IN port of the suppressor.
2. Using a coupler (Item # 039056) and a 1/8” o.d. piece of tubing (Item # 035728) from the Installation Kit, connect one end of this line to the REGEN OUT port of the suppressor and then connect the other end of the line to the Gas Separator Waste Tube.
3. Fill the water source reservoir. Make sure that the O-ring is inside the cap of the reservoir before screwing the cap onto the reservoir. Screw the cap onto the reservoir tightly and place the reservoir near the Chromatography Module.
4. With applied current, adjust the external water flow rate to match the eluent flow rate by using a graduated cylinder and measuring the flow from the REGEN OUT waste line. The pressure applied to the reservoir can vary from 0–25 psi (the lower and upper-pressure limits of the water reservoir) but the typical operating pressure is between 5 – 10 psi. Please note that this value is highly system dependent and may vary from one suppressor to the next. In summary, the final external water flow rate is dependent on two factors: the pressure applied to the water reservoir and the power setting. It is best to measure it with the power on since the application of current can affect the final flow rate significantly.