TPDX022-0811 HOPPER TEMPERATURE CONTROLLERS HTC MODELS, 600-5000 PRECISE CENTRAL DRYING CONTROL Heat Boosters supply economical drying heat to individual drying hoppers for the most efficient material pre-conditioning system available. With a temperature range up to 350°F {178°C}, and a full complement of safety devices, Heat Boosters are exceptional for providing safe, precise temperatures for drying. Each Hopper Temperature Controller is equipped with a Heater Box (left) that connects directly to the drying hopper and a precision DC temperature controller (right). FAST RESPONDING, ENERGY EFFICIENT HEATERS The HTC Heat Boosters feature tube type heaters with fast responding, energy efficient, open-wire resistance heaters located within mica-lined stainless steel tubes. High temperature safety shut off protection is an integral feature of each HTC. The HTC controls feature a lockable fused disconnect switch, solid state heater contactor, isolation contactor for over temperature safety protection and a proportioning temperature controller. The temperature is monitored and controlled with a remote sensor located at the hopper air inlet. n Individual heating units Allows you to heat hoppers individually for your unique drying needs. n Precision heat control Features dual display of setpoint and actual temperatures. n Safe surface temperature Insulated heater box ensures safe surface temperature. n Safe operation Redundant safety switches and alarms help eliminate accidents. Accurate, safe temperature control Drying temperatures are set and monitored easily with the DC Control which displays both setpoint and actual temperatures. Over/under temperature and temperature deviation faults are also clearly alerted along with low airflow conditions, which prevent operation during hopper cleaning or without airflow from the central dryer.