
Principles of Operation
Teledyne API - Model T200H/T200M Operation Manual
282
analyzer is first started, the humidity gradient between the inner and outer tubes is not
very large and the dryer’s efficiency is low at first but improves as this cycle reduces the
moisture in the sample gas and settles at a minimum humidity.
Figure 8-11:
T200H/M Permeation Dryer
Just like on startup, if the instrument is turned on after having been off for more than 30
minutes, it takes a certain amount of time for the humidity gradient to become large
enough for the permeation dryer to adequately dry the air. In this case, called a cold start,
the O
3
Generator is not turned on for 30 minutes. When rebooting the instrument within
less than 30 minutes of power-down, the generator is turned on immediately.
The permeation dryer used in the T200H/M is capable of adequately drying ambient air to
a dew point of ≤ -5˚C (~4000 ppm residual H
2
O) at a flow rate of 1 standard liter per
minute (slpm) or down to ≤ -15˚C (~1600 ppm residual H
2
O) at 0.5 slpm. The
permeation dryer is also capable of removing ammonia from the sample gas up to
concentrations of approximately 1 ppm.
07270D DCN7141
Содержание T200H
Страница 2: ......
Страница 4: ...Teledyne API Model T200H T200M Operation Manual ii This page intentionally left blank 07270D DCN7141 ...
Страница 8: ...Teledyne API Model T200H T200M Operation Manual vi This page intentionally left blank 07270D DCN7141 ...
Страница 10: ...Teledyne API Model T200H T200M Operation Manual viii This page intentionally left blank 07270D DCN7141 ...
Страница 12: ...Teledyne API Model T200H T200M Operation Manual x This page intentionally left blank 07270D DCN7141 ...
Страница 344: ...This page intentionally left blank B 2 07270D DCN7141 ...
Страница 353: ...APPENDIX D 07270D DCN7141 07270D DCN7141 D 1 D 1 ...