System Pressure Wait Error Message Appears On The Front Panel Display - Agilent Technologies VS Series Operation Manual

C.2 System Pressure Wait error message appears on the front
panel display
This error can also occur during normal operation.
Causes/Resolutions
1. Foreline pump is not running:
Ensure the foreline pump is operating - check electrical connections and that the
power switch is on.
2. Turbo pump failure:
a. Verify that the red turbo symbol appears on the Home screen. This symbol flashes
when a turbo failure is present.
b. Select the Manual Valve Control screen and verify that the turbo RPM is at the
programmed value for that given range (see chart) and that the bearing temperature
is normal (< 50 °C (122 °F). If the bearing temperature is > 60 °C, the turbo shuts
down.
c. If no turbo error symbol is present on the Home screen, select the Manual Valve
Control screen and observe the turbo RPM and bearing temperature. If the turbo
RPM is 6000, it is possible that the turbo has crashed:
3. Turbo Controller board failure:
a. Verify that the red turbo symbol appears on the Home screen.
b. Open the Manual Valve Control screen and ensure that the turbo RPM = 0 and the
bearing temperature = 255 °C (491 °F).
c. Verify that the power cable is connected to the turbo and that 24 VDC is present at
the turbo controller board. If all connections are secure, replace the turbo controller
board.
d. Open the Manual Valve Control screen and ensure that the turbo RPM = 0 and the
bearing temperature = 0 C (32 F). Ensure that the RS-232 cable is secure at the turbo
controller board and motherboard. If the RS-232 cable is secure, replace the turbo
controller board.
If the replacement turbo controller board does not solve the communication
problem, there is a chance that the RS-232 cable is defective or that the
communication port on the motherboard is not working, replace the motherboard.
VS Series Component Leak Detector
Remove the spectrometer from the turbo and see if the turbo spins freely. If not,
replace turbo.
C-3