Treaton MV200, User Manual

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4.16 Service menu
4-54
No Message Alarm condition Operator’s actions
12 Incorrect coeff. for differential
press. sensor Ventilation controller malfunc-
tion Contact the customer service
13 Error: no response from power
unit Power unit malfunction Contact the customer service
14 Error: temperature sensor
error in power unit Power unit malfunction Contact the customer service
15 Error: low ambient air
temperature Power unit malfunction Contact the customer service
16 Calibration task stop Calibration task failure Repeat the calibration. If mes-
sage appears again contact the
customer service
17 Monotony error in input table User incorrectly followed the
calibration instructions on the
screen or malfunction of the
device Repeat the calibration. If
message appears again contact
the customer service
18 Coefficients writing error Ventilation controller malfunc-
tion Contact the customer service
19 Incorrect coeff.for
press.sensor in exp.line Ventilation controller malfunc-
tion Contact the customer service
4.16.4 Selection of flow correction conditions on the inspiration and the expiration
On the inspiration the device uses the flow sensors, operating on the principle of measuring the
mass of the passed gas. On the expiratory flow sensor measures the volume of the passed
breathing mixture. It is possible to use different types of breathing gas humidification in the
device.
“Insp. conditions” and “Exp. conditions” parameters are intended for selection of conditions for
the conversion of the breathing mixture mass passed through the device to the appropriate
volume. Weight and volume are connected by the equation that contains the partial pressures of
all gas fractions, temperature and the absolute pressure of the mixture.
Select the parameters through the menu: [Menu] → [Service menu] → [Calibration] → [CIVL]
→ [Insp. (Exp.) conditions].
The device provides 4 types of inspiration and expiratory flow correction:
•
ATP (Ambient Temperature, Pressure) - the conversion is carried out for the 30 % relative
humidity and ambient temperature of 25 °C.
•
ATPS (Ambient Temperature, Pressure, Saturated – 100 % humidity), this correction is
similar to ATP at 100 % relative humidity.
•
ATPD (Ambient Temperature, Pressure, Dried – 0 % humidity), this correction is similar to
ATP at 0 % relative humidity.
•
BTPS (Body Temperature, Pressure, Saturated – ambient pressure, 100 % relative
humidity).
When working with the bag select ATP correction, when using the humidifier select BTPS.
Incorrect type of correction would lead to the increasing of measurement errors of inspiration
and expiration volume.