Sterling SDF 250, SDF 400, SDF 500 Technical data, Basic Version, Optional Equipment, Performance

SDF 250/400/500

9. Technical data

Basic Version

Central control unit for operating the dryer and the drying hoppers.

Drying temperature adjustment for all connected hoppers

•SPS-S7 PLC

•Touch-screen

•Timer clock

•Regeneration heater with safety temperature limiter

•Isolated alarm output

•Optical alarm

Optional Equipment

•Adjustable, dew point dependent regeneration switch with dew point display -Optimum efficiency due to continuos online dew point measurements -Maximum drying quality - minimal energy consumption

-Significant energy savings when processing materials with a low initial moisture content

•Controlled blowers

-Dry air volume optimally adapted to respective requirements -No loss of heat during part-load operation

-Significant energy savings

•Automatic air distribution through air distribution valves with fuzzy logic control -Prevents the material from being exposed to un nec es sary ther mal stress -Significant energy saving due to heater shut-off function

-Optimum operating safety due to special sensor technology

•Throughput control at the drying hopper for automatic dwell time monitoring (only available when used in conjunction with Sterling Central Conveyor System)

-Optimum protection for changing service conditions

-Alarm or removal stop if dwell time has not been reached -Optimum operating safety through dwell time monitoring

•Communication Interface

Performance

•Maximum air drying capacity of 250 m3/hr up to 500 m3/h (depending on version)

•Operates with 400 V +/-10 %, 3 AC, 50 Hz voltage

•Average dewpoint temperature of -50° C (- 60 °F)

•Compressed-air consumption valve stem: 3 l/h

Technical data 9-1