The integrated temperature transmitter adopts silicone rubber or epoxy resin sealing structure, so it is shock-resistant, moisture-resistant, and suitable for installation and use in harsh field environments. The integrated temperature transmitter has a wide range of applications. It can not only form an integrated on-site installation structure with thermocouples and thermal resistances, but also can be installed in testing equipment and on instrument panels as functional modules.
Adjustment principle of integrated temperature transmitter
The millivolt signal generator is used to imitate the thermocouple to generate millivolt signals corresponding to different temperature values as the input signal of the transmitter; the fine resistance box is used to generate resistance signals corresponding to different temperature values as the input signal of the transmitter. Adjust the corresponding potentiometer, so as to complete the adjustment of the zero point and span of the transmitter and the calibration of the accuracy.
Integral Temperature Transmitter Calibration Considerations
1. Pay attention to the polarity when wiring, and start the adjustment after 15 minutes of power-on preheating.
2. Input the signal at a slow speed during adjustment to ensure that no overshoot occurs.
3. Do not use too much force when adjusting the potentiometer to avoid screwing it out.
4. Before calibration, prepare the calibration record sheet, and check the thermocouple temperature/millivolt comparison table or thermal resistance temperature/resistance comparison table at each calibration point, find out the required data and fill in the prepared data. good data records.
