Spectron BE55-2U, Руководство по эксплуатации

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BE_55+56-2U_1212.docx 11
Operating Manual
of the BM and BE series
3. Description
3.3
Technical data
Note
The technical data can be taken from the Spectron data sheet for the relevant product. If this is
not available, you can view and download it at www.spectron.de.
The maximum inlet and outlet pressures and the gas type are indicated on the type plate.
3.4
Connection options

Inlet pressure connector: 1/4" NPT female thread, generally equipped with a stainless steel
compression fitting for 6 mm pipes

Outlet pressure connector: 1/4" NPT female thread

Relief valve: 1/4" NPT female thread

Extension connector: 1/4" NPT female thread
3.5
Changing the supply side
Step Activity
1 The position of the lever indicates which side the gas is drawn from:
Switching lever up – gas is drawn from the gas cylinders on the left-hand side:
The outlet pressure of the pressure regulator on the left is set higher than that of the pressure
regulator on the right.
Switching lever down – gas is drawn from the gas cylinders on the right-hand side:
The outlet pressure of the pressure regulator on the right is set higher than that of the pressure
regulator on the left.
If the handle is positioned horizontally, the two pressure regulators are set to the same outlet pressure.
2 The gas cylinder pressure on the preselected side falls below the outlet pressure of the reserve side:
the reserve side takes over the job of supplying process gas to the connected consumers without
interruption.
With single-stage switching panels, the outlet pressure falls markedly when there is an
automatic switch from the preselected operational side to the reserve side. When the
switching lever is operated, the reserve side is raised to the normal outlet pressure level
and thus becomes the operational side.
Two-stage switching panels keep the pressure very largely constant.
4 Move the switching lever to increase the outlet pressure again on the reserve side that has now
become the operational side.
5 Change the gas cylinder on the side that has now become the reserve side.
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