Zero adjustment of pressure sensor.

1. Set to [ZERO ADJUST] in the [CONTROL] group.
  * For LC-20A / 30A, [ZERO ADJ]

2. Open the drain valve to remove pressure completely.

  * For LC-40B X3/XR, the zero value of the pressure sensor of both A and B pumps is set at the same time, so open both drain valves.

3. Press [Enter].

 

If the pressure value is not constant, the pressure sensor may be defective, contact a Shimadzu sales or service representative.