Thermo Scientific EASY-nLC 1200 Troubleshooting And Maintenance Manual page 112

5
Routine Maintenance
Replacing a Pressure Sensor
90 Troubleshooting & Maintenance Guide
1. "To remove a pressure sensor from the instrument"
2. "To install the new pressure sensor"
❖ To remove a pressure sensor from the instrument
1. Set the corresponding valve to the Center position as described in
Controls" on page 165.
2. Close down the EASY-nLC system, and turn off the power to the instrument (see
"Closing Down the EASY-nLC Instrument"
3. Using a #2 Phillips head screwdriver, make a quarter-turn to loosen the three captive
screws that secure the right side panel to the instrument housing. Then remove the panel.
4. Disconnect the stainless steel Viper capillary attached to the inlet and outlet ports of the
pressure sensor.
5. Using a 2.5 mm L-hex wrench or ball driver, remove the two screws that secure the
pressure sensor L bracket to the instrument panel.
6. While holding the pressure sensor, use a 2 mm L-hex wrench to remove the two screws
that secure the pressure sensor to the bracket.
7. Disconnect the pressure sensor cable from the pump.
Figure 72 shows the pressure sensor connections.
on page 90
on page 91
on page 22).
"Using the Valve
Thermo Scientific