BCI Capnocheck Plus - Pneumatics Cleaning; The Pneumatics Consists of Five Main Parts

Chapter 1: Introduction
Pneumatics Cleaning
Cleaning of the pneumatics system is only recommended if done by qualified
service
technicians. Cleaning of the pneumatics is generally not required if
proper filter is used at all times. However, improper use of the device or use
under very harsh conditions may warrant periodic cleaning.
The Pneumatics consists of five main parts:
Procedure:
* Tubing
+ Sample cell (i.e. CO; bench)
+ Diaphragm pump
* Three-way autozero valve
+ Pressure transducer
Each of the above parts should be cleaned independent of each other. For
example, all tubing should be disconnected from components before cleaning.
Use one of the following procedures, whichever is most appropriate:
For tubing and diaphragm pump:
1. Pass a mild detergent through to remove any oily residue or
contaminants.
Flush with distilled water to remove the detergent.
Flush with absolute ethanol to remove the moisture.
Flush with dry gas to evaporate ethanol and dry the
component thoroughly.
5. | Make sure components are dry before reassembling.
Three-way autozero valve:
1. Flush with dry gas. Do not flush with alcohol or water.
Pressure transducer and CO, bench:
1. If contaminated it must be replaced by a qualified service
technician.
After the device is reassembled, make sure to check for proper operation and
flow rate. If the device does not function as specified refer to qualified service
technicians for repair or replacement of pneumatics components.
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