1290 Infinity Quaternary Pump User Manual 131
Maintenance
9
Replacing the Pressure Sensor
Replacing the Pressure Sensor
When No or invalid pressure signal
Tools required p/n Description
8710-2412 Hex key 2.5 mm, 15 cm long, straight handle
8710-0510 Wrench open 1/4 — 5/16 inch
Screwdriver
Parts required # p/n Description
1 G4220-60001 Pressure sensor 1200 bar
Preparations Turn off pump flow, switch off pump
This procedure describes how to replace the pressure sensor.
In case the cable to the sensor shall be replaced as well, please contact your Agilent
service representative.
Working on connections to the pressure sensor may slightly change the displayed
pressure. In case of a pressure offset at ambient pressure, a pressure offset calibration may
be run.
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