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slice:qt [2019/09/18 06:18]
Michael Radunsky [Specifications]
slice:qt [2020/07/30 09:12] (current)
Michael Radunsky [System Settings]
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 ===== Proper Usage ===== ===== Proper Usage =====
 | {{ :warning-sign.png?100&nolink }}  | If this instrument is used in a manner not specified by the manufacturer in this manual or other relevant literature, protection provided by the instrument may be impaired. | | {{ :warning-sign.png?100&nolink }}  | If this instrument is used in a manner not specified by the manufacturer in this manual or other relevant literature, protection provided by the instrument may be impaired. |
 +|:::| Successful implementation of the SLICE-QTC depends critically on the design of the whole system: controller, transducer, plant, and sensor. |
 +
 +==== Tips for Successful Temperature Regulation ==== 
 +  -  The transducer, plant, and sensor must all be in good thermal contact. Use thermal paste or epoxy to avoid air gaps between a TEC or heater and the body of the plant as well as to secure the thermistor to the plant.
 +  - Know the electrical limits of of your transducer and set the limits of the SLICE-QTC accordingly.  Each channel can provide up to  6 A or 20 W of power with a maximum compliance voltage up to ~18 V.  Choose transducers that work within these limits.  Using the current, power, and/or voltage ratings of your transducer to calculate loads on individual channels and set limits appropriately in the CH X > Settings > Load Limits window.
 +  - Maintain proper shielding of the control cable, but avoid ground loops between the SLICE-QTC and the plant.  In most cases this means extending the foil shield in the cable to as close as possible to the plant without electrically connecting the SLICE-QTC to the plant.  
  
 ===== List of Symbols ===== ===== List of Symbols =====
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 | Compatible Transducer                                                                                                                     | TEC or resistive heater                                                                                                                                                                                                | | 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.))  | | 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.))  |
-| Temperature Stability                                                                                                                     | ±0.2 mK over 1 hour((Plant-dependent; value specified for D2-100 laser))                                                                                                                                               |+| Temperature Stability                                                                                                                     | ±0.2 mK over 10 min((Plant-dependent; value specified for D2-100 laser))                                                                                                                                               |
 | Precision                                                                                                                                 | ~1 mK                                                                                                                                                                                                                  | | Precision                                                                                                                                 | ~1 mK                                                                                                                                                                                                                  |
 | Control Capacity                                                                                                                          | 40 W total((User-distributable over four channels)) \\ 20 W max for a single channel                                                                                                                                                                          | | Control Capacity                                                                                                                          | 40 W total((User-distributable over four channels)) \\ 20 W max for a single channel                                                                                                                                                                          |
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 The User can limit the control power available to individual channels.  To adjust control capacity from the Home screen, select CH X > Settings > Load Limits and the screen shown in <imgref power> will appear. The User can limit the control power available to individual channels.  To adjust control capacity from the Home screen, select CH X > Settings > Load Limits and the screen shown in <imgref power> will appear.
  
-<imgcaption power|Screen for adjustment of control power capacity>{{ :slice:slice-qt_load_limits_screen.jpg?400x254 |}}</imgcaption>+<imgcaption power|Screen for adjustment of control power capacity>{{ :slice:slice-qt_load_limits_screen.png?400x254 |}}</imgcaption>
  
 === Transducer and Thermistor === === Transducer and Thermistor ===
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 Current firmware versions are reported here.   Current firmware versions are reported here.  
  
-<WRAP center round box 60%><tabcaption firmware_rev |Most recent firmware versions as of 6 June 2019+<WRAP center round box 60%><tabcaption firmware_rev |Most recent firmware versions as of July 2020
-| Firmware | Version Level | Release Date | +| Firmware           | Version Level  | Release Date  
-| System Controller| 1.2423 May 2019+| System Controller  | 1.177           March 2020   
-| QTC| 1.3823 May 2019|+| QTC                | 1.52           July 2020   |
 </tabcaption></WRAP> </tabcaption></WRAP>
 From time to time, Vescent will upgrade the firmware for controlling the SLICE-QTC.  The procedure to upgrade the firmware is given [[slice:qt:firmware|here]]. From time to time, Vescent will upgrade the firmware for controlling the SLICE-QTC.  The procedure to upgrade the firmware is given [[slice:qt:firmware|here]].
slice/qt.1568812684.txt.gz · Last modified: 2019/09/18 06:18 by Michael Radunsky