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PT1000 temperature sensor - high temperature and precision

PT1000 temperature sensor - high temperature and precision
PT1000 temperature sensor - high temperature and precision
PT1000 temperature sensor - high temperature and precision
PT1000 temperature sensor - high temperature and precision
PT1000 temperature sensor - high temperature and precision
PT1000 temperature sensor - high temperature and precision
PT1000 temperature sensor - high temperature and precision
PT1000 temperature sensor - high temperature and precision
PT1000 temperature sensor - high temperature and precision
11.45€
Tax 9.46€
  • Stock: In Stock
  • Model: SensorTemp-PT1000

High temperature PT1000 temperature sensor.

They are capable of measuring higher temperatures than thermistors (up to 400-450ºC, compared to 300ºC for the thermistor), and are more accurate than thermistors and thermocouples in general.

PT1000 sensors can directly replace your printer thermistors without adding an amplifier board, however resolution may be somewhat lower.

  • Temperature range: 0-450ºC.
  • Cartridge size: 3mm diameter, 15mm length
  • High temperature resistant cable, 1 meter long
  • DuPont connection.

To get around this low resolution issue, you can modify the board resistor by installing a 1k ohm resistor, instead of the supplied one, which is typically 4.7k ohms. This operation must be carried out with care, we are not responsible for possible damage caused.


Comparative table

 PT100PT1000
PrecisionHighMedium
Needs adapter boardYesNo
Susceptible to interferenceSomewhatNo
Temperature limitUp to 430ºC depending on typeUp to 430ºC depending on type
Special considerationsFor best accuracy, use a 4-wire connectionResolution less than PT100. No additional electronics required. However, to unlock your full resolution you need to change the 4.7k ohm resistor included on most boards to install the 1k resistor instead. In addition, the firmware configuration must be updated, depending on the installed sensor and resistance.

 

Installation Recommendations:

Depending on the hardware that we have right now (PT1000 sensor + Modification of the optional board), the firmware must be updated with the new values:


For Duet2 Wifi, firmware 3,1, proceed as follows:

M308 S1 P "e0temp" Y "pt1000" R2000; Two 1K resistors in series for better accuracy.


For Marlin:

Default 4.7Kpullup resistor, choose '1047' sensor.

If you have replaced the pullup with a 1K resistor, choose the '1010' sensor.

Configuration. h:

1047 : Pt1000 con pullup 4k7

1010 : Pt1000 con 1k pullup (no estándar)

# Define TEMP_SENSOR_0 1010

Thermistortable_1010.h:

/Pt1000 con 1k0 pullup

Const short temptable_1010[][2] PROGMEM = {

PtLine( 0, 1000, 1000)

PtLine( 25, 1000, 1000)

PtLine( 50, 1000, 1000)

PtLine( 75, 1000, 1000)

PtLine(100, 1000, 1000)

PtLine(125, 1000, 1000)

PtLine(150, 1000, 1000)

PtLine(175, 1000, 1000)

PtLine(200, 1000, 1000)

PtLine(225, 1000, 1000)

PtLine(250, 1000, 1000)

PtLine(275, 1000, 1000)

PtLine(300, 1000, 1000)

PtLine(325, 1000, 1000)

PtLine(350, 1000, 1000)

PtLine(375, 1000, 1000)

PtLine(400, 1000, 1000)

PtLine(425, 1000, 1000)

PtLine(450, 1000, 1000)

};

Thermistortable_1047.h:

/Pt1000 con 4k7 pullup

Const short temptable_1047 [2] PROGMEM = {

// Only a few values are needed as the curve is very flat

PtLine( 0, 1000, 4700)

PtLine( 50, 1000, 4700)

PtLine(100, 1000, 4700)

PtLine(150, 1000, 4700)

PtLine(200, 1000, 4700)

PtLine(250, 1000, 4700)

PtLine(300, 1000, 4700)

PtLine(350, 1000, 4700)

PtLine(400, 1000, 4700)

PtLine(450, 1000, 4700)

};


For Repetier firmware:

Pt1000 with 4k7 pull-up resistor (default)

Configuración. h:

# Definir NUM_TEMPS_USERTHERMISTOR0 12

# Definir USER_THERMISTORTABLE0 {723,0},{812.320},{896.640},{975.960},{1049,1280},{1118,1600},{1184,1920},{1246,2240},{1305,2560},{1361,2880}.

Pt1000 with 1K pull-up resistor

Configuración. h:

# Definir NUM_TEMPS_USERTHERMISTOR0 23

# Definir USER_THERMISTORTABLE0 {2055,0},{2132.160},{2202.320},{2327.640},{2383.800},{2436.960},{2485,1120},{2531,1280},{2574,1440},{2614,1600},{2653,1760},{2689,1920},{2723,2080}. }.{ 2894,3040},{2918,3200},{2940,3360},{2962,3520},{2983,3680}.

You can also configure a new USER_THERMISTORTABLE in your web firmware configuration tool.

R2 is the pull-up resistance of the thermistor pins.


For Duet 3D board:

M305 P1 X501 R4700; Heater 1 uses a PT1000 connected to channel 1 of the thermistor which has a 4.7K series resistance

M305 P1 X501 R1000; Heater 1 uses a PT1000 connected to channel 1 of the thermistor which has a 1K series resistor


For Smoothieware:


Instead, you can choose PT100 and amplifier board, if you need more than 300ºC temperature, please click here.

Tips: You can use the temperature input pin P0.23-P0.26 by removing the pull-up resistor from that pin. When you connect the PT100 amplifier board to your smoothhieboard or MKS SBASE (the manufacturer already tested it works).


How to replace the resistor:

Warning: this step is indicated for experienced users, an error could irreparably damage the electronics.
  1. Try to find the corresponding resistor RX of 472 or 4701 normally they are near the thermistor input terminals.
  2. Measure the 2 terminal pins with a multimeter one pin should be shorted to GND/AGND one should be shorted to one end of the pull-up resistor.
  3. Replace it with your soldering iron and skills.
  4. Connect PT1000 sensor as normal thermistor.
  5. Change your firmware.
  6. If all goes well, the printer should display ambient temperatures.

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