Datex-Ohmeda Anesthesia Delivery Unit S/5, Technical Reference Manual

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Calibration A-EV1
Document No. 8502855
C-35
CALIBRATION A-EV1
General requirements
•
The measuring equipment shall be accurate and calibrated
•
There are many types of flow and pressure test devices available that can be used to complete
this procedure. Datex-Ohmeda recommends no specific device. Specifications are provided
with this chapter. The flow and pressure test devices should have an accuracy of +/-2,5% or
better.
•
Datex-Ohmeda assumes that technical and biomedical professionals know how to use the
device available at his/her institution. Therefore, test device instructions are not included here.
•
If a check do not pass a test, verify and make sure that your test devices and its setup to the
measuring point are correctly done before starting to calibrate or changing parts.
•
Before flow calibration, ambient pressure on ADU shall be set on the average level of the region.
Also Manual and Auto leak check should be done.
•
The ADU is calibrated in ATP (ambient temperature and pressure).
•
Always makes sure to understand the function of the test devices before calibration.
•
Always remembers to not have any measuring tubes connected to the test device when you
Zeroing it.
•
The calibration procedure must follow the order as specified in the calibration tree below.
Entering calibration mode
Before performing any Ventilator calibration, make sure that the ventilator is in calibration mode:
1.
Enter the Service menu and Calibration - Ventilator .
2. Check that the text AUTO or MAN has changed to Calibrating in the mode selection field
of the display.
3. If not return to previous menu and select Ventilator Diagnostic menu.
4. Enter pneumatic controls
CAUTION Do not make any changes on valves
5. Return to Ventilator Calibrating menu and check that the text in the mode selection field
has changed to Calibrating .
6. Perform calibration.