3.6 Servo Controlled Oxygen Calibration
1. Select Set Up icon (wrench) to bring up Set Up screen.
2. Scroll down and select Cal Oxygen to initiate calibration. Calibration is automatic and takes less than
ve minutes. A bar graph indicates progress toward completing calibration. If for any reason you wish to
discontinue calibration before it is completed, turning the control knob in either direction will cause the
word Cancel to appear on the calibration screen. Pushing in the control knob will discontinue calibration.
When calibration is completed, 100% oxygen is delivered for approximately 20 seconds to ensure there are no
occlusions in the system. Do not turn o the unit or disconnect the oxygen supply during this brief period after
the ‘Calibration Complete’ screen appears.
NOTE: The servo control oxygen system prompts for calibration every 24 hours, but the system may prompt for
calibration if there is a large leak in the system (for example if a door is open) for half an hour.
CAUTION:
The servo-control system must be calibrated at the same atmospheric pressure in which it is to be
used. Operation at atmospheric pressures other than that present during calibration may result in
readings outside the stated accuracy for the unit.
3.7 Scale Calibration
NOTE: For EU Member States:
• This scale has been designed and manufactured in accordance with the non-automatic weighing
instruments (NAWI) directive, 90/384/EEC. In order to assure complete compliance to the Directive, have
the unit calibrated by an accredited local test authority. If you are unable to identify a test authority, please
contact your GE representative or distributor for assistance.
• Periodic re-verication (calibration) of the scale must be performed in accordance of the National
Regulations Governing Legal Metrology. The required re-verication frequency will vary by country. Contact
your local weights and measures authority for more information.
NOTE: The scale is calibrated using a Class F calibration weight between 1 kilogram and 8 kilograms (accuracy
of 0.01%).
1. Place the test weight on the center of the bed.
2. Hold the override key while powering up to enter the service screen.
3. On the second service screen, select Cal Scale.
4. Remove the weight and push the knob at the screen prompt “REMOVE THE WEIGHT AND PUSH KNOB”. The
screen will prompt “INITIALIZING” for a few seconds.
26 6600-0343-000 104 © 2001 by Datex-Ohmeda, Inc.. All rights reserved.
Chapter 3: Calibration and Maintenance
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