Safety Information
1-6 User Manual
DMR V4C 3.3 (User Manual) V-4 06-May-2022
1.2.3 FiO
2
Readings and Calibration
WARNING:
Always measure the delivered oxygen with a calibrated oxygen analyzer (FiO
2
kit) that features a
minimum and maximum concentration alarm in order to ensure that the prescribed oxygen
concentration is delivered to the patient.
WARNING:
If using the V4C-560 FiO
2
kit, changes in the ventilator’s settings or mode may affect the
calibration of the sensor. For the most accurate FiO
2
readings, recalibrate the sensor after any
significant changes to the ventilator settings. If recalibrating follow the directions in Section 5.1,
FiO
2
Sensor Calibration.
WARNING:
If using the V4C-560 FiO
2
kit, the FiO
2
sensor may drift out of calibration as the ventilator initially
warms; therefore, a two-step calibration is recommended whereby the sensor is first calibrated
cold and then re-calibrated once it has warmed. See Sections 5.1, FiO
2
Sensor Calibration and 5.2,
Changing FiO
2
During Ventilation Using a Compatible Ventilator for further instructions.
WARNING:
When setting FIO
2
do not overturn the oxygen knob. Stop once resistance is felt. See Figure 2-1 for
location of knob.
1.2.4 Warnings Regarding Environmental Conditions
WARNING:
Read and take account of the environmental condition ranges for proper operation before using
the V4C-O2E Oxygen Mixer.
WARNING:
Do not use the V4C-O2E Oxygen Mixer at an atmospheric pressure or temperature outside of the
range stated in Section 2.7, Specifications. Using the Oxygen Mixer outside of the specified
temperature or atmospheric pressure range can affect the Oxygen Mixer performance and can
result in patient injury or death.
WARNING:
Do not cover the V4C-O2E Oxygen Mixer or place it in a position that affects proper operation,
including close to a heat source, on an uneven surface, or on a bed.