Portable PVC Insulated With Metal Sheath Pt100 & RTD Sensor Used
For Food And Beverage Industry Temperature Measurement
A PT100 cable measures temperature based on the principle of the
positive temperature coefficient of platinum resistance. Here's a
detailed explanation:
Measurement Process: An electrical current is passed through the platinum resistance
element in the PT100 cable. As the temperature changes, the
resistance of the platinum element also changes accordingly. By
measuring the change in resistance, the corresponding temperature
can be determined. Usually, a Wheatstone bridge circuit or other
measurement circuits are used to accurately measure the resistance
value of the PT100. The measurement circuit converts the resistance
change into a voltage or current signal, which can be read and
processed by a temperature - measuring instrument or a data
acquisition system. After calibration, the instrument can directly
display the measured temperature value.
To install a PT100 cable for accurate temperature measurement, the
following steps and considerations are important:
- Select the appropriate cable: Choose a PT100 cable with the right specifications for your
application, considering factors such as the temperature range,
environmental conditions, and required accuracy. For example, in
high - temperature environments, cables with high - temperature -
resistant insulation should be selected.
- Prepare the installation site: The installation location should be free from mechanical
vibrations, strong electromagnetic fields, and direct sunlight.
Ensure that the surface where the sensor is to be installed is
clean, flat, and free from dirt, oil, and other contaminants. If
measuring the temperature of a liquid, make sure the sensor is
installed in a location where it can be fully immersed in the
liquid and is not affected by flow disturbances.
- Proper sensor placement: For measuring the temperature of solids, the PT100 sensor should
be in good thermal contact with the object. This can be achieved by
using thermal paste or adhesive to attach the sensor firmly to the
surface. If possible, insert the sensor into a drilled hole in the
object to ensure better heat transfer. When measuring air
temperature, the sensor should be placed in a well - ventilated
area to ensure accurate measurement of the ambient air temperature.
- Cable routing: Route the cable away from sources of interference, such as power
cables and electrical equipment that may generate electromagnetic
fields. Use cable trays, conduits, or armored cables to protect the
PT100 cable from physical damage. Avoid sharp bends and twists in
the cable, as these can affect the accuracy of the measurement by
changing the resistance of the cable.
- Connection and termination: Make sure the connections at both ends of the PT100 cable are
secure and free from corrosion. Use appropriate terminal blocks or
connectors to connect the cable to the measuring instrument. Follow
the manufacturer's instructions for proper termination to ensure
accurate measurement. In some cases, a three - wire or four - wire
connection method may be used to compensate for the resistance of
the cable itself and improve measurement accuracy.
- Calibration: Before installation and periodically after installation,
calibrate the PT100 cable and sensor system to ensure accurate
temperature measurement. Calibration can be performed using a
calibrated temperature source and a precision measuring instrument.
Compare the measured values with the known reference temperatures
and adjust the system if necessary.
- Sealing and protection: If the installation environment is humid or dusty, use
appropriate sealing materials to protect the PT100 sensor and cable
connections from moisture and dust ingress. This helps to prevent
corrosion and ensure the long - term stability and accuracy of the
measurement.
More pictures of our cables:
FAQ:
Q: What is the brand name of this Thermocouple Cable?
A: The brand name of this Thermocouple Cable is Tankii.
Q: What are the different model numbers available for this
Thermocouple Cable?
A: The different model numbers available for this Thermocouple
Cable are KX/KC, JX, EX, TX, NX, SC, RTD .
Q: Where is this Thermocouple Cable manufactured?
A: This Thermocouple Cable is manufactured in China.
Q: What are the temperature ranges supported by this Thermocouple
Cable?
A: The temperature ranges supported by this Thermocouple Cable vary
depending on the model number. Please refer to the product
specifications for more information.
Q: Is this Thermocouple Cable suitable for use in harsh industrial
environments?
A: Yes, this Thermocouple Cable is designed to be durable and
reliable in harsh industrial environments.
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