Differences

This shows you the differences between two versions of the page.

--- slice:qt [2020/09/01 18:52] – [SLICE-QTC Four-Channel Temperature Controller] Michael Radunsky
+++ slice:qt [2021/08/26 14:26] – external edit 127.0.0.1
@@ Line 72: / Line 72: @@
 | Channels                                                                                                                                  | 4                                                                                                                                                                                                                      |
 | Loop Filter                                                                                                                               | PID, adjustable corners and proportional Gain                                                                                                                                                                          |
-| Control Range((Lower precision may be realized above 50°C.  Consider using a thermistor with 10 kΩ at higher temperature than nominal.))  | -10 to +120°C                                                                                                                                                                                                          |
+| Control Range  | -10 to +120°C                                                                                                                                                                                                          |
 | Compatible Transducer                                                                                                                     | TEC or resistive heater                                                                                                                                                                                                |
 | Compatible Sensor                                                                                                                         | NTC thermistor ((Nominal value 10 kΩ at room temperature. Precision at temperatures removed from room temperature can be improved by selecting a thermistor whose resistance is ~10 kΩ near the target temperature.))  |
@@ Line 254: / Line 254: @@
 To set the properties of the transducer (TEC or heater) and thermistor for an individual channel from the Home screen, touch CH X > Settings > Plant.  The menu in <imgref plant> will appear.  Select TEC/Bipolar (as seen) or by touching TEC/Bipolar, select Heater/Unipolar.
-From this screen, it is also possible to set the polarity of the TEC.  Touch Polarity Positive/Polarity Negative to toggle between the two states. The polarity is already set correctly to POSITIVE for use with NTC thermistors.
+From this screen, it is also possible to set the polarity of the TEC.  Touch Polarity Positive/Polarity Negative to toggle between the two states. The polarity is already set correctly to NEGATIVE for use with NTC thermistors.
 The thermistor data has been configured at the factory for a typical NTC thermistor that is 10 kΩ at 25°C.  Only NTC (Negative Thermal Coefficient) thermistors can be used.  You can enter a new Beta value, reference temperature, and resistance value and the Steinhart-Hart constants will be calculated automatically or vice versa.