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Troubleshooting
Dépannage ......................................25
Diagnóstico de problemas ...............27
故障排除 ..........................................28
Устранение неполадок ..................30
There is a drop in system pressure when the Calibration
EN
Manifold has been pressurized and the Fill Valve is closed.
If there is a drop in system pressure when the Calibration Manifold has
been pressurized and the Fill Valve is closed, then there is a leak. Follow
these instructions to locate and repair the leak:
1. Connect the Calibration Manifold to a Device Under Test (DUT) and
connect a Ralston Quick-test hose to the Inlet Port.
2. Make sure the process connections are assembled wrench-tight.
3. Close Vent Valve.
4. Open Fill Valve.
5. Apply Pressure to unit.
6. Close Fill Valve.
7. Spray soapy water or leak detection fluid where leaks are suspected or
immerse the Calibration Manifold in water. Be careful not to immerse the
pressure gauge or calibrator.
8. Observe where bubbles are coming from to determine where there is
a leak.
9. Remove the leaking part and remove the O-ring.
10. Clean and lubricate the leaking O-ring, and backup ring with silicone
grease if applicable.
11. Replace the O-ring, and backup ring if applicable.
12. Reassemble.
Fine Adjust Piston is difficult to operate.
If the Fine Adjust Piston is difficult to operate over years of service, then
the inside walls of the piston need grease. Follow these instructions:
1. Remove the Fine Adjust Piston.
2. Apply a thin coat of graphite grease, such as Dow Corning
Assembly Paste (or equivalent) to the inside walls of the fine adjust
body and the threads.
3. Lubricate the fine adjust piston O-rings with silicone lubricant
4. Reassemble.
The unit is leaking.
If the unit is leaking, then follow these instructions to locate and repair the leak:
1. Spray soapy water or leak detection fluid where leaks are suspected or
immerse the Calibration Manifold in water. Be careful not to immerse the
pressure gauge or calibrator.
24
Solução de problemas .....................31
Diagnostica ......................................33
Fehlerbehebung ..............................35
G-n Metal
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