Specifications

DRI-STEEM XT Electrode Steam Humidifier Installation, Operation, and Maintenance Manual • Page 45
Operation
Supply water considerations
Recommended supply water
conductivity for DRI-STEEM
electrode humidifiers is
125 to 1250 μS/cm.
Water conductivity and drain and fill events
The paragraphs below explain why steam output consistency,
efficiency, cylinder life, and start-up time are impacted by water
conductivity and by drain and fill events.
Water conductivity: In electrode humidifiers, steam output is
directly related to the resistance of the water in the steam cylinder
and, therefore, the conductivity of the water between the electrodes.
Higher water levels cover more electrode surface and result in more
steam; lower water levels cover less electrode surface and result in
less steam. Since water conductivity and water level both correlate
to steam output, DRI-STEEM’s algorithm monitors conductivity
and manages drain and fill events to optimize humidifier
performance and provide proper steam output.
Drain and fill events: As the water in the cylinder boils into steam,
the concentration of conductive ions increases until it reaches a
threshold that triggers a drain and fill event. This rids the cylinder
of highly conductive water and replaces it with less conductive
fill water. The more conductive the fill water and the higher the
demand, the more quickly the threshold is reached, and the more
frequently the cylinder automatically drains and fills to stay within
the parameters for proper steam output.
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