Chapter 1 Principles, Description, and Functions of the IRAffinity-1
1-14
IRAffinity-1
Principle of dry unit
The interferometer of IRAffinity-1 uses a dehumidifier of ROSAHL
®
, as a dry unit, which
decomposes moisture in the interferometer and removes it to the outside.
•ROSAHL
®
is a dehumidifier that utilizes a special solid polymer electrolyte membrane to
electrolytically decompose and remove moisture in the air.
• When DC voltage is applied to porous electrodes attached to the both sides of the membrane,
the moisture on the anode side (dehumidifying side) dissociates into hydrogen ion (H
+
) and
oxygen, and hydrogen ion moves in the membrane to the cathode and reaches the cathode
(moisture discharging side).
• On the cathode, hydrogen ion reacts with oxygen in the air, resulting in water molecule (gas)
which is then discharged.
Fig. 1.9 Principle of ROSAHL
®
The dry unit is located the inside of the cover on the back side of IRAffinity-1. The following
attentions should be paid when use.
• Please avoid using this product in poor ventilation space.
• Don't expose the membrane to liquid water and insects directly.
• Please avoid using this product in the polluted circumstance where volatile anti-corrosion
agent or high concentrated organic gas is used.
• Please avoid using this product in the circumstance such as in fine particles or oil mists.
• Please dehumidifying/humidifying electrodes to avoid contact of a hand or objects.
• Do not disassemble the product to the pieces or repair, remodel arbitrarily, it may cause the
trouble.
WARNING
Since this instrument includes electrically active parts even if the power switch is off, it ignites
and causes a fire if there are any flammable gases in explosive (flammable) range around this
instrument. Do not leave the material that generates the flammable gas around this instrument.
To Next Page
Loading...
Need help?
General
