Welch-allyn LC101 CO2 Module - User Manual Manual de usuario Pagina 22

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LC101 CO
2
Module OEM Implementation Manual
Page 22 Confidential Welch Allyn OEM Technologies
Two-Point User Calibration Procedure
Two-Point User Calibration Equipment Setup
Equipment needed:
calibration gas canister (8 – 12% CO
2
, ±0.02%, balance air or nitrogen)
gas valve and non-silicon tubing
sample elbow or tee
•flow meter
sample line
•watertrap
•CO
2
scrubber (or 0% CO
2
medical-grade gas source)
CAUTION Make sure that the tubing used to connect the gas supply to the LC101 does
NOT contain silicon. Silicon tubing absorbs CO
2
and affects the stability of
the gas concentration, thereby reducing the accuracy of the procedure.
Illustration of gas canister,
regulator and pneumatic circuit
10%
CO2
Bal. N2
Regulator
On/Off
Tee
Free Flow Away
From Monitor Input
To Monitor
Water Trap
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