Teledyne AX300-I manual Oxygen Reading Error

Portable Oxygen Analyzer Service Manual

oxygen / 70% nitrous oxide, and the resulting drops in oxygen level after an exposure of approximately two hours were noted.

Exposures in excess of two hours may produce slightly greater errors. The errors listed are typical for all oxygen sensors such as the R17MED. Exposing the sensor to air or gases that do not contain anesthetic agents for a period of time equal to or greater than the exposure interval will eliminate the reading error in most cases.

Table 3-1: Oxygen Reading Error in a Mixture of Anesthetic Gas

Gas or Vapor Level

(Balance: Mixture of 30% O2 / 70% N2O, except where noted)

Gas or Vapor	Test Level
Helium	50%, balance O2
Nitrous Oxide	80%, balance O2
Carbon Dioxide	10%, balance O2
Halothane	4%
Enflurane	5%
Isoflurane	5%
Sevoflurane	5%
Desflurane	15%

Oxygen Reading

Error

0%

0%

0%

<1.5% O2 *

<1.5% O2 *

<1.5% O2 *

<1.5% O2 *

<1.5% O2 *

*Errors are approximate and may vary based on exposure times and concentrations.

These performances meet or exceed the requirements of ISO 7767: 1997 (E).

CAUTION: THE AX300-I SHOULD NOT BE USED IN THE PRESENCE OF FLAMMABLE ANESTHETICS SUCH AS DIETHYL ETHER OR CYCLOPROPANE.

CAUTION: THE AX300-I, OXYGEN SENSOR AND ASSOCIATED HARDWARE ARE NON-STERILE DEVICES. DO NOT AUTOCLAVE THE INSTRUMENT OR SENSOR, AS THIS WILL DAMAGE THE EQUIPMENT.

Teledyne Analytical Instruments 35