126 1100 Series Nano Pump Service Manual
3 Repairing the Pump
Exchanging the Flow Sensor
1 Turn off the pump.
2 Disconnect the EMPV to flow sensor capillary on the flow sensor inlet.
3 Disconnect the flow sensor to sampler capillary on the flow sensor outlet.
4 Unscrew the flow sensor.
5 Install the new flow sensor.
6 Reconnect the EMPV to flow sensor capillary on the flow sensor inlet.
7 Connect the flow sensor accuracy calibration capillary (G2226-67300) on
the flow sensor outlet.
8 Run the flow sensor accuracy calibration from the ChemStation. Follow the
step by step procedure.
9 At the end of the procedure, disconnect the flow sensor accuracy
calibration capillary.
10 Reconnect the flow sensor to sampler capillary on the flow sensor outlet.
Frequency Leak on the flow sensor.
Unstable column flow
Flow sensor blocked
Tools required 8710-2412 2.5 mm hex key
8710-1534 4 mm open wrench
Parts required G1376-60004 Nanoflow sensor
G2226-67300 Flow sensor accuracy calibration capillary (8000 mm, 25 um)
G2226-67300
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