Figure 6-4: Electronic Instrument SHDC-2100
 
KEY On During Programming LED On  = tower under pressure
KEY
Test condensate drain / increase 
value / reset alarm
LED On = inlet filter clogged
LED
On = device powered LED On = outlet filter clogged
Flashing = under programming LED Alarm: DewPoint too high
LED On = display shows % of set load LED Alarm: operating cycle did not switch
LED
On = display shows DewPoint tem-
perature
LED Alarm: maintenance intervention 
LED On = tower under adsorption KEY Reset cartridge replacement
LED
On = air breathing solenoid valve 
regeneration open
KEY Reset desiccant replacement