Welch Allyn Duet CO2 Module - User Manual - Manual (Page 53)

Duet CO
2
Module OEM Implementation Manual
Welch Allyn OEM Technologies Confidential Page 53
Performance Validation
Introduction
Welch Allyn OEM Technologies recommends that the OEM perform annual verification procedures on
the Mainstream and the Sidestream CO
2
sensor and pneumatic system components. Typically,
calibrated gas measurement is a steady state measurement, so updated breath data is not necessary.
Also, calibrated gasses are dry gas, therefore the water vapor and BTPS compensations should be
disabled by the Host in those instances where dry gas readings are made.
Verification Procedures
Mainstream CO
2
Sensor Verification
Equipment needed
§ calibrated Low Dead Space Airway Adapter
§ gas valve and tubing
§ calibration gas canister / 10.00% CO
2
, balance nitrogen, ±0.02%
Illustration of gas canister,
regulator and mainstream circuit
10%
CO2
Bal. N2
Regulator
On/Off
Free Flow
Away From
Monitor Input
Mainstream
Sensor
Airway
Adapter