TC M Temperature Controller User Manual V1.08
Electron Dynamics Ltd page
3
3
Connections
3.1
PT100 Measurements
For PT100 measurements configure the following links on the TCM PCB
Lk1 connect pins 2 and 3
No other links
Connect PT100 sensor to J8 on pins 3 and 4 with screen to pin 6.
3.2
PT1000 Measurements
For PT1000 measurements configure the following on the TC M PCB.
LK1 connect pins 2 and 3
No other links
Connect PT1000 sensor to J8 on pins 3 and 4 with screen to pin 6.
3.3
Voltage sensor measurements
For voltage outputs sensors, LM35, LM50, LM51, LM 60, LM 61 configure the following links on the TCM
PCB
Lk1 link pins 1 and 2
Lk2 link pins 2 and 3
No other connections
Connect sensor to J8, to pin 1, sensor output to pin 3 and sensor gnd to pin4 with screen
if used to pin 6.
In this configuration LM35 operates down to zero degrees C but not below
3.4
NTC thermistors
To connect NTC thermistors –
LK1 link pins 1 and 2
LK2 link pins 2 and 3
LK4 link pins 1 and 2
No other connections
Connect thermistor to J8 between pins 3 and pins 4, connect screen if used to pin 6
For best operation stick with 10K types these have a better range in this circuit. Other values can
be accommodated if required
