Zero And Secondary Calibration Valve Malfunction - ABB Navigator 600 Silica User Manual

Navigator 600 Silica
Single-stream
C.2.4 Zero and Secondary Calibration Valve Malfunction
Check / Symptom Action
Secondary To check the valve:
calibration valve
malfunction
Zero calibration valve To check the valve:
malfunction
78
1. Manually energize the secondary calibration valve – see Section 8.4, page 52 ('Manual Test
Settings').
2. Check that the LED on the main board is lit and that there is an audible click from the solenoid
valve.
1. Loosen the sample filter assembly to allow air to be drawn into the system.
2. Check that in normal operation, the sample / air interface flows from the zero valve's common
(middle) port to the lower port.
3. When the sample / air interface has passed through the valve's lower port, manually energize the
valve and check that air flows out of the top port.
4. Tighten the sample filter housing and ensure that sample flow is restored.
5. When sample flows from the valve's top port, manually de-energize the valve and check that
sample flows out of the lower port.
Zero Valve
Appendix C – Troubleshooting
IM/NAV6S/SS–EN Rev. E