Resvent iHope RS Series, User Manual

Page: 181 / 261

9-13
9. Maintenance
affects the partial pressure of oxygen. Do oxygen
concentration calibration again when atmospheric
pressure has changed.
• Increasing to periodical pressure of 10 kPa (100
cmH
2
O) has no effect upon oxygen concentration
monitoring accuracy.
• In case of calibration failure, check for relevant
malfunctioning alarm and then troubleshoot it if
there is. Then do the calibration again. In case of
repeated calibration failures, replace the O
2
sensor
and do the calibration again. If it still fails, contact
your servive providers or us.
This calibration tests the oxygen cell and resets the
calibration points specific to the oxygen cell in use.
Please calibrate the oxygen concentration when the
measured oxygen concentration has a great deviation
or when the O
2
sensor is replaced.
Follow these steps to calibrate the oxygen
concentration:
1. Make sure high-pressure oxygen source is
connected.
2. Open the [
Setup
]->[
Sensor
]->[
Calibration
]->[
O
2
]
window to access the O
2
calibration, press Start to
begin the calibration.
3. During the calibration, if you press [
Stop]
to abort
the calibration.
4. After the calibration completed, the message
indicating calibration failure is displayed if the
calibration is failed. In this case, you need to do the
calibration again.
Influence of humidity: -0.03 % rel. per % RH at 25 ℃ .
Influence of pressure: proportional to change in oxygen
partial pressure.
Influence of mechanical shock: < 1 % relative after a fall
from 1m.
Warm-up time <30 minutes, after replacement of