Chapter 11 Appendix3-RTD module and PT100 wiring (modul optional)
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6. Press
keys,input code "115800",then press
key to
stretch.Only in the current powering -on period, automatically shut down when
the power is cut off.
7. Press
key to enter and then select "Adjust 0"to return water
temperature adjustment,press
to adjust temperature for 0.00,press
key to enter and then select "Adjust 0"to inlet water temperature
adjustment,press
to adjust temperature for 0.00, press Enter key to
Complete calibration.
Method Two: Liquid standard temperature calibration method
Note: It is used to calibrate the internal circuit of RTD module and the PT100
temperature sensors together
1. Directly put the sensor end of a PT1000 temperature sensor into a mixture of
ice and water (the temperature is 0◦C), and the other end connects with the
RTD module (adjust the electric potentiometer to 4mA accordingly to ensure the
display of M63 is 4.00).
2. Power on the SL1188 transmitter,then enter the menu M07
3. Adjust the 4mA potentiometer on the left of A1 and the 4mA potentiometer on
the right of A2, and make sure the display of inlet water temperature and return
water temperature is 0.00±0.05.
4. Press
keys,input code "115800",then press
key to
stretch.Only in the current powering -on period, automatically shut down when
the power is cut off.
5. Enter the menu M07,After waiting for two temperature stability press
enter keys to enter and select "Adjust 100"to return
water temperature adjustment,press
to adjust temperature for 100.
6. Power on for many times,0
°
C:inlet and return water temperature is 0.00
0.05,Temperature difference is 0.00
±
0.05. 100
°
C:inlet and return water
temperature is 100
±
0.05,Temperature difference is 0.00
±
0.05.
7. After the ice water mixture temperature sensors back to room temperature, put
them into a constant temperature oil/water bath (the temperature is 100
°
C.)
8.
