Jesco C 2213, Инструкция по эксплуатации и техническому обслуживанию

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Troubleshooting | Operation Manual C 2213 |
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There are two possibilities for a simultaneous delivery adjustment.
9.3.1 Adjustment by means of water column
This type of adjustment is the right possibility if maintenance of the units is carried out in a workshop. The
advantage is that all units are adjusted to exactly the same working point and that they can be exchanged for
one another or replaced by new units without problems. A testing station has to be installed in the workshop.
Fig. 19: Adjustment by means of water column
①
Wall holder for vacuum regulator with cylinderfor pressurized air (approx.0.5 dm³) const. 6 bar
②
Water column (at least 1200 mm) with stop valve and collecting tank at the top of the water column
(larger than tank at the bottom of the water column)
③
flow meter 200 g/h
④
Ejector with non-return valve and water supply
Procedure:
• Mount the vacuum regulator with flat gasket to the wall holder and connect the vacuum tubing with the
flow meter. The flow limiter is mounted into the hose connector of the vacuum regulator!
• Close the ball valve in direction of water column.
• Open stop valve for pressurized air and set pressure reducer to 6 bar.
• Switch-on ejector and adjust flow rate at measuring glass to exactly 200 g/h.
• Open ball valve in direction of water column.
• Set adjusting screw such that water column indicates 1100 mm.
(For units with a higher residual pressure - approx.1 bar - the set value is 1050 mm.)
• Close the ball valve in direction of water column.
• Switch off ejector.
9.3.2 Adjustment by flow meters
This method can be applied directly in the plant. The required number of flowmeters (e.g. 200 g/h) corresponds
to the number of vacuum regulators in the cylinder battery. The measuring glass holders (measuring range
200 g/h) are only required during adjustment.