Teledyne 465L operation manual Sample Conditioner Option, Permeation Gas Dryer Option

Teledyne API Model 465L O3 Monitor Instruction Manual

Sample Conditioner Option

The Sample Conditioner option is a water drop-out filter and a permeation gas dryer, designed for high-humidity environments where the sampling gas has been saturated with water vapor and may contain small amounts of condensed water. This coalescing filter removes not only liquid, but also particulates with a Teflon filter element. Refer to Section 9.8 for maintenance procedures.

Due to the additional volume added by the water drop-out filter, there is an exception to the Response Time in the M465L specifications:

The Response Time of an M465L instrument equipped with the Sample Conditioner option, will be <60 seconds to 95%.

CAUTION

The Sample Conditioner will NOT protect the unit from damage by large amounts of liquid, such as that ingested through immersion of the sample line.

Furthermore, it is important to closely track the amount of water accumulating in the Water Drop-out Filter after the monitor has been installed and running: if excessive condensation is occurring in the sample lines leading to the monitor, then heat-traced lines should also be used to minimize condensation

The Sample Conditioner option includes a Permeation Gas Dryer, which is available as an alternate option (described next) if humidity is the only concern and there is no risk of condensation.

Permeation Gas Dryer Option

The Permeation Gas Dryer serves to remove water vapor from sampling gas in a humid environment. It is an alternative option when there is no risk of condensation. The permeation material is a Teflon Type compound and has only a minimal effect on the ozone concentration in the sample stream. When the M465L is equipped with this option, the unit has been calibrated at the factory to compensate for any ozone loss in the permeation dryer.

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