Function; Assembly - VTI SELECT ERGO K622-24X Gebrauchsanleitung

PRESSURE REGULATOR SELECT ERGO
Operating instruction

3.3 Function

The pressure regulator is connected to a gas cylinder valve via the inlet connection. The
connections are standardised and specified according to the type of gas. The pressure
regulator is designed for nominal operating pressure up to 200 bar or 300 bar, depending on
the version.
Application systems such as nose cannulas, masks, humidifier unit for patient supply are
connected to the flow outlet via a hose nipple or the threaded connection.
As soon as the gas cylinder valve is opened, the gas cylinder pressure is displayed on the
pressure gauge. The pressure gauge can be rotated.
By turning the handwheel, the flow rate in l/min can be set in fixed steps. Even when the
handwheel is between adjacent settings, the pressure regulator will release gas. The flow
rate is then approximately between the two adjacent levels. This function is intended to
improve patient safety.
The flow outlet is not suitable for operation with medical devices connected downstream,
e.g. ventilators or flowmeters. For this purpose, the pressure regulator can be additionally
equipped with 1 or 2 pressure outlets. At the pressure outlet, a fixed pressure of 4 +1 bar is
provided, with the possibility of withdrawing a large flow rate (>120 l/min). The connection
is designed as a plug-in coupling or threaded connection, which closes automatically when
the connected device is removed.
4.

Assembly

DANGER
Fire and explosion hazard due to oxygen
During assembly or operation, contact with oil or grease containing substances
may occur.
• Keep the devices and connections free from oil and grease.
• Use protective caps for ports.
• Clean your hands before working on the oxygen supply.
• Do not use creams and ointments containing grease.
• Check the pressure regulator for damage and contamination.
• Check the maintenance interval ("8. Maintenance").
• Do not use any tools for assembling the pressure regulator.
Document: 0172.14.332 Index d 2021-03-25 26