Sterling 90-225 CFM User Manual

 

 

Cabinet Series Dehumidifying Dryer 

 

18 

The Dew Point display indicates the current process air delivery moisture content. The display 
uses a microprocessor-based controller for reading dew point air temperature. The controller is a 
modular, self-contained removable unit in the mounting housing. All parameters are factory-set 
and adjusted; no field adjustment to the internal controls is necessary. The high dew point alarm 
is also factory adjusted. 

Our dehumidifying dryers use a microprocessor-based PID temperature controller for maintaining 
process air temperature. The controller is a modular, self-contained unit you can remove from the 
mounting housing. All parameters except for the process air set point is factory set and adjusted; 
no field adjustment to the internal controls is necessary. 

During normal operation, the process value (PV) 
numeric LED indicator displays the process 
temperature at the To Process thermocouple.  It 
also lists parameters during setup and error 
messages if any errors occur. 

During normal operation, the set value (SV) 
numeric LED indicator displays the process set 
point you selected for the dryer. The dryer then 
maintains this set point temperature. This LED 
indicator also displays parameter and pre-set 
function values during setup. 

Lit when control output 1 turns on.  The Out 
indicator lights when the controller signals the 
process heaters to be energized. 

Lit when control output 2 turns on. Not used in 
this application

. 

Lit when the manual operation mode is being  
used. 

Lit when control operation has been stopped.  Not 
used in this application. 

Lit during remote operation.  Not used in this 
application. 

Flashes during auto-tuning. 

Lit when the output function assigned to auxiliary 
output 1 turns on.