Ametek 303B, User Manual

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Appendix-D
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D-1
Appendix D
lb/MMscf Pounds of water per million cubic feet of sample. (A
temperature must be specified.)
Electrolytic Cell Cell with two electrodes coated with a phospho-rus
pentoxide desiccant. Water vapor is absorbed by the
desiccant and electrolyzed by current
passing through the cell.
Saturated Cell A condition where the phosphorus pentoxide
coating has absorbed so much water that cell
drying is required.
Flooded Cell A condition of extreme saturation.
The phospho-rus pentoxide coating is
dissolved, so that re-coating is necessary.
Water Hang-Up Water trapped or absorbed onto the system walls or
fittings.
Tramp Water Water which has entered a sample stream from a
source other than the source being sampled.
System Equilibrium A system condition where water is absorbed onto
the system walls at the same rate as it is given off.
Entrained Dirt Dirt carried by a sample stream.
Dew Point (H2O) Temperature at which water vapor begins to de-
posit as liquid.
System Response Time Sample system volume divided by the flow.
Speed of Response The time for the moisture analyzer to reach
63 percent of its final reading after a step
change in moisture content.
XX_XX In mathematical term s, a single variable
using two or more words.