MTS Model 409.83 Temperature Controller - Manual (Page 16)

Model 409.83 Temperature Controller 16
Model 409.83 Temperature Controller Specifications
Introduction
interlock when the heater elements are enabled. If undesirable conditions arise,
power to the heater elements is cut off automatically.
The following figure illustrates a block diagram of the Model 409.83
Temperature Controller and a high-temperature furnace.
A temperature setpoint is selected for each furnace heat zone. The setpoint is
compared to the temperature measurement provided by a thermocouple inside in
the furnace. Any difference (between the setpoint and the actual temperature)
causes an error signal.
The error signal produces a time proportional signal. This time proportional
signal is sent to a corresponding solid state relay. The time proportional output
pulses the solid state relay on and off at a rate determined by the amplitude and
polarity of the error signal. The solid state relay applies the AC power to the
corresponding heating element in the furnace.
Model 409.83 Temperature Controller Specifications
High
Temperature
Furnace
Upper Control
Signal
Middle Control
Signal
Lower Control
Signal
Lower Thermocouple
Signal
Middle Thermocouple Signal
Upper Thermocouple Signal
element
element
element
Temperature
Controller
Parameter
Specification
*
Environmental:
Temperature
Relative Humidity
0°C to 50°C (32°F to 122°F)
10 to 90%, noncondensing
Line Voltage † 100–120 V AC± 10%, 50/60 Hz
220–240 V AC± 10%, 50/60 Hz