Download Agilent 1200 Series Binary Pump SL

6
Tests and Calibration Functions
Pressure Test
Description
The pressure test is a quick built-in test designed to demonstrate the leak
tightness of the system. The test involves monitoring the flow profile while the
Binary Pump SL delivers against a blank nut. The result is presented as the
leak rate of the pump and provides information about the leak tightness of the
system between the outlet ball valves of the Binary Pump SL and the blank
nut.
NOTE
CAUTION
The blank nut can be positioned anywhere between the purge valve of the pump and the
detector inlet to pressure test the desired part of the system.
Never include the flow cell in the pressure test as the applied pressure may cause
permanent leaks or bursting (FLD, RID) of the flow cell.
Step 1
The test begins with the initialization of both pump heads. After initialization,
the pump is starting the compression phase and the required flow rate is
constantly monitored and adjusted. The Binary Pump SL continues to pump
until a system pressure of around 600 bar is reached.
Step 2
When the system pressure reaches 600 bar, the Binary Pump SL continues to
pump at a flow rate that keeps the pressure constant. The flow that is needed
to keep the pressure constant is directly translated into a leak rate.
Positioning the blank nut
To test the complete system for pressure tightness, the blank nut should be
positioned at the column compartment outlet (or the outlet of the last module
in front of the detector).
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1200 Series Binary Pump SL User Manual