Dräger D-Vapor, Instructions For Use Manual

Page: 109 / 120

Instructions for use D-Vapor/D-Vapor 3000
109
Description
Control dial position 0 or T –
vaporizer switched off
The mixed gas flows from the vaporizer inlet via the
branch (O) directly to the vaporizer outlet.
The interior of the vaporizer (bypass and metering
gaps) is completely isolated from the gas flow by
valves (M), (N). Anesthetic agent cannot get into
the fresh gas.
A small hole in the valve (M) vents the interior of the
vaporizer to the outside so that no pressure can
build up. In the event of temperature and pressure
fluctuations, small quantities of anesthetic agent
vapor may escape.
Control dial setting ≥ 2 Vol% –
vaporizer switched on
The fresh gas is routed through valves (M), (N),
which are linked to the control dial (K), and through
the bypass gap (C).
D-Vapor 3000
D-Vapor 3000 also has Vapor View functions. In
conjunction with anesthesia workstations that also
have the Vapor View option, the D-Vapor 3000
anesthetic vaporizer is illuminated in the area of the
control dial and sight glass. Therefore, the concentrations set and the filling level are also
visible in darkened rooms. Additionally, the position
of the control dial is transmitted to the anesthesia
workstation as a setting value.
Calibration
Each vaporizer is set individually for desflurane.
The calibration conditions are: 22 °C (71.6 °F) and
2.5 L/min Air with continuous flow without
ventilation pressure.
The metering is checked with different flow rates at
22 °C (71.6 °F).
The calibration is carried out by measuring the
metered concentration directly at the vaporizer
outlet in Vol%.
The scale values on the control dial specify the
concentrations for 22 °C (71.6 °F) and 1013 hPa
(14.7 psi) at 2.5 L/min dry air.
Influence of temperature
The performance characteristics of the vaporizer
are not significantly affected by temperature
fluctuations within the specified operating range.
See "Ambient conditions" on page 100.