Electron Dynamics TC M series - 2 Controller Functions; Sensor Measurement; Cpu; Output Driver

TC M Temperature Controller User Manual V1.08
Electron Dynamics Ltd page
2
2 Controller Functions
The controller has the following functional parts –
2.1 Sensor measurement
The input stage provides measurement for resitive and voltage output sensors. These are
measured by a sophisticated delta-sigma ADC which gives excellent accuracy and noise
suppression.
Suitable for Pt100 sensors - 100 R accuracy 0.001 C over –200 to +400 C range
Voltage sensors accuracy 0.01 mv or better
2.2 CPU
This provides all the intelligent control, measuring the input values and calculating the output
required for the control type. It also provides storage for the configuration parameters .
2.3 Output driver
This provides a bi-directional variable output drive to the TEC element(s). The output switches at
the preset repetition rate and adjusting for output value by setting the PWM duty cycle.
2.4 Communications
This is provided via USB
2.5 Power
The drive to the TEC’s is provided directly from the voltage supplied so this should be the same as
the TEC’s maximum rating or less.