Control range : +5 to +50 degree C Control accuracy : Less than +- 1 degree C Model : DCN-5 to DCN-25 (12.8104.7kW) Control method : Proportional control by mixing valve (Ampere output 4 to 20mA)
For temperature controlling of higher accuracy, the evaporator has adopted a new shell &tube system , which uses two pumps, one for circulation and the other for the process and by the
proportional controlling with the mixing valve, the control range has been expanded to cover the +5 to +50 degree C range. In addition,the heat calories are indicated on the operational panel and
the testing functions are integrated for quality stabilization. DCN controller has thus been developed with aims at truly ideal molding operation. Normal operation started in one-touch ! Data
changing is simple and easy with the interactive input system. An interactive operational panel is adopted for a greater convenience in operation. Setting is simple and easy ! Only follow the
instruction displayed on the panel.No error. Normally , the equipment is operated full automatically by the data stored in the memory. In case of any failure , the conditions are displayed on the
panel for smooth and quick recovery of the trouble. Proportional control by mixing valve ! (Ampere output 4 to 20mA) Temperature control of the heating medium used to be done before by turning on
and off the freezer , so poor accuracy of temperature control. Besides , material fatigue by the vibration and sometimes breakage(of the freezer) and insufficient cooling caused by the heat
generated in the motor at start (because of inadequate insulation of motor) were unavoidable. Adoption of proportional control by the mixing valve has solved all these problems and remarkably
improved temperature accuracy. Shell & Tube Evaporator ! Conventional multiple-pipe systems have a limited quantity of circulation. However, the adoption of a shell & tube system having
characteristics as described below for the heat conductivity required has increased the freezer performance to the highest level. One system having all accesses to temperature control ! Available
for CIM. This NET System has such optional functions as interface and program diskette added to DCN CONTROLLER to realize an ideal temperature control with the PC ring for central control of
monitoring and data management. This will be useful as part of a CIM program.
