Mindray iPM-9800 - Removing Exhaust Gases from the System

16-9
16.7 Removing Exhaust Gases from the System
WARNING
z Anesthetics: When using the Sidestream or Microstream CO
2
measurement on
patients who are receiving or have recently received anesthetics, connect the outlet
to a scavenging system, or to the anesthesia machine/ventilator, to avoid exposing
medical staff to anesthetics.
To remove the sample gas to a scavenging system, connect an exhaust tube to the gas outlet
connector of the module.
16.8 Zeroing the Sensor
The zero calibration eliminates the effect of baseline drift during CO
2
measurement exerted
on the readings and therefore maintains the accuracy of the CO
2
measurements.
16.8.1 For Sidestream and Microstream CO
2
Modules
For sidestream and microstream CO
2
modules, a zero calibration is carried out automatically
when necessary. You can also start a manual zero calibration if necessary. To manually start a
zero calibration, select [Start Zero Cal.] in the [CO
2
Setup] menu. Disconnecting the patient
airway is not required when performing a zero calibration.
16.8.2 For Mainstream CO
2
Modules
For mainstream CO
2
modules, zero the sensor whenever:
1. A new adapter is used;
2. You reconnect the sensor to the module;
3. You see the message [CO
2
Zero Required].In this case, check the airway adapter for
any blockage, e.g. mucus, etc. If a blockage is detected, clear or replace the adapter.
To zero the sensor, follow this procedure:
1. Connect the sensor to the module.
2. In the [CO
2
Setup] menu, set the [Operating Mode] to [Measure]. The message [CO
2
Sensor Warmup] is displayed.