TEMP. CONTROLLER TR 28-3T 
This microprocessor controlled temperature regulator is suitable for the high temperature hot plate. After adjustment of the temperature setpoint by the membrane keypad, the PID controller keeps it constant (control deviation 2 K or less). 

Equipment of PR5-3T and TR 28-3T 
2-poled main switch; individual adjustment of proportional range, derivative/integrating factor and cycle time; control range limitation (to avoid the setting of values not useful or harmful to an application); contact maker input, actual value correction, junction bush for high temperature hot plate, wattage power control 1...100%, unmterrrupted switching. 
Both regulators show the actual value constantly. Furthermore the programmer shows the remaining time of a ramp. When the SET key is pressed, the display changes to show the setpoint. 
On request the devices are available with a temperature limiter to avoid superheating. 

Type:TR 28-3T
Voltage:230 Volt / 50..60 Hz 
Power:2200 Watt 
Cable length (standard):1,8 m 
Overall dimensions:185mmx180mm 
Height:65 mm 
Control behaviour:PID 
Weight:1,4 kg