Pulsafeeder PULSAlarm Pulsa Series, Инструкция по установке, эксплуатации и обслуживанию

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another). Refer to the Pump manual for further instruction.
16. If the pump is not already hydraulically primed, re-prime it now using the
procedure found in the Pump Operating Manual. If the diaphragm was never
removed, this step should not be necessary. If a new diaphragm is being
installed, the pump will need to be re-primed.
17. In order to fully balance and remove air from the leak detection system the
pump must now run at normal discharge pressure for a period of about 30
minutes to one hour. This ensures that excess barrier fluid and air is fully
evacuated from the system.
18. Remake any process connections that were broken to the suction and
discharge of the pump. Check that the system is safe for operation.
19. Restore/replace any convers to the pump that may have been removed.
20. In hazardous locations the PULSAlarm cover must be threaded onto the fitting
and locked using the lock screw.
21. Remove any safety related engineering controls (lockout/tagout).
22. If possible, adjust any discharge pressure devices to their lowest settings.
23. Adjust the pump stroke length to its 0% setting.
24. Apply power to the pump motor and start the pump.
25. Slowly increase the pump stroke length from 0% to 100%.
26. Slowly increase the discharge pressure to full operating pressure.
27. Continue to run the pump. During this time, excess barrier fluid will be
displaced from the system into the length of tubing attached to the outlet side,
balancing the system for proper operation. A small pen mark on the tube can
assist in observing this process visually. Once the liquid in the tube no longer
rises, the evacuation should be complete.
28. After 30 minutes of operation, stop the pump motor.
29. Remove the tubing and connection from the housing body and reinstall the
pressure gauge. Use thread sealing pipe dope to seal the fitting.
30. Verify the connections to the alarm switch if they were disturbed during
maintenance.
31. The pump and pressure leak-detection system are now properly prepared and
ready for normal service.
During normal operation, the gauge should indicate 0 (zero) pressure.
Under certain circumstances, the system may not completely evacuate excess
barrier fluid during the procedure as outlined above. In these cases, after
several days run time, a small amount of pressure may build in the system. If
this occurs, simply loosen the pressure gauge from the switch housing and
relieve a small amount of barrier fluid, returning the system to a zero-pressure
state.
Once this startup procedure is completed, the pressure leak detection system
should require no further maintenance.