Setting Under-Pressure Limit (P Min) - Varian 212-LC Manual Del Usuario

Setting Under-pressure Limit (P Min)

Function Keys
Refer to the keypad layout in Figure 6 for key orientation and description.
1. The default setting for P Min is 0 psi. Once P Min is set, this setting
becomes the default value. If P Min has a positive value and the
pump is started, the prompt "Reset MIN Value? Yes" will appear
requesting P Min to be reset. The pump will not start if P Min has a
positive value and must be running and under pressure to set P
Min.
2. Press P Min and enter a numerical value for P Min, then press
Enter. The pump will shut off when the pressure drops below this
value and prompt "Reset MIN Value? Yes".
3. Press Enter to reset the numerical value for P Min as required, then
press Enter and then press Run.
This is an important feature which will turn the pump off when the solvent
bottle is empty. Running a pump for prolonged periods of time without
any solvent may damage the piston rods and/or seals.
Figure 6 Keypad Layout
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