Siemens KION Service Manual page 84

Service procedures
PEEP pressure transducer
CON
I2C-bus
Offset 1:
1. All mushroom valves except MV1 and MV5 are
opened. Also the Fresh gas valve and PEEP valve
are opened to depressurize the system.
2. Offset adjustments of the PEEP pressure
transducer E2-potentiometers until the
transducer value is close to zero.
• The Tidal Volume display shows the target
value: 0.
5
• The Exp. Tidal Volume display shows the
adjusting transducer value (in 1/100 cmH2O).
• Fail if communication over the I2C-bus fails or
64 attempts or 30 s has elapsed to adjust
pressure transducer E2-potentiometers
without being close to the target value.
Diagnostic 281, subdata ...00 0A /...00 0B.
Gain:
3. The PEEP valve is closed to enable the system to
be pressurized.
4. The operator is demanded to pressurize the
system by setting a flow using the Fresh Gas
Flow knob and to enter the pressure value read
on the calibration manometer using the Preset O
Conc. knob. The value shown on the Fresh Gas
Flow display is proportional to the flow generated
by the gas module, approx. 0 – 992 ml/min.
5 - 12
PC1750 Transducer
Transducer
signal
5. Gain adjustments of the PEEP pressure transducer
E2-potentiometers until the transducer value is
close to the system pressure set by the user.
• The Tidal Volume display shows the target
value (in 1/100 cmH2O), i.e. the system
pressure set by the user.
• The Exp. Tidal Volume display shows the
adjusting transducer value (in 1/100 cmH2O).
• Fail if communication over the I2C-bus fails or
64 attempts or 30 s has elapsed to adjust
pressure transducer E2-potentiometers
without being close to the target value.
Diagnostic 281, subdata ...00 0E /...00 0F.
Offset 2:
6. All mushroom valves except MV4 are opened.
Also the PEEP valve is opened to depressurize
system.
7. The offset adjustments of the PEEP pressure
transducer E2-potentiometers is repeated but
with a negative offset (-25 cm H
if PC1750C is used) to enable measurement of
negative pressures.
• The Tidal Volume display shows the target
value: 2500 (1000 with PC1750C).
• The Exp. Tidal Volume display shows the
adjusting transducer value (in 1/100 cmH2O).
• Fail if communication over the I2C-bus fails or
64 attempts or 30 s has elapsed to adjust
pressure transducer E2-potentiometers
without being close to the target value.
Diagnostic 281, subdata ...00 0C /...00 0D.
8. If the calibration of PEEP fails, the INSP and EXP
transducer calibration is not performed.
2
Siemens-Elema AB
KION / KION-i
O or -10 cmH2O
2
E382 E392E 061 01 02 02