RS PRO Type PT 100 Thermocouple 50mm Length, 6mm Diameter, -50°C → +200°C
- RS Stock No.:
- RS PRO
- COO (Country of Origin):
|1 - 5||$122.12|
|6 - 11||$119.19|
RS Pro Class B Heavy Duty PT100 Sensor
Our RS Pro range of Class B heavy-duty PT100 sensors have been picked to ensure reliability and accuracy without compromise. Predominantly used in with industrial & automation industry, thanks to their native high accuracy over a wide temperature range.
Features & Benefits
No need for special cables for installation, as opposed to thermocouples.
PT100 sensors dynamically adapt the resistance value with the temperature.
Suitable for use in harsh environments thanks to a 316 stainless steel sheath.
2 m hard-wearing silicon rubber insulated lead.
4 wire terminations, meaning compatibility with a large variety of 2, 3 & 4 PT100 devices.
IEC751, Class B
An RTD is a type of temperature sensor based on the correlation between metals and temperature. As the temperature of a metal increases so does its resistance to the flow of electricity. This resistance can be measured and converted to a temperature reading. In a Pt100 RTD the Pt stands for platinum (platinum wire or film) and 100 means that the temperature sensor has a resistance of 100 Ohm at 0°C. Platinum is the most reliable metal due to its linear resistance to temperature relationship over a large temperature range.
What is a Pt100 Probe?
A Pt100 probe is the most rugged form of RTD. The Pt100 sensor element is mounted inside a metal sheath or probe. This protects it from being damaged by the surrounding environment when it is inserted into the process to be measured. The other end of the probe is terminated by an insulated lead comprising of 4 wire tails which are connected to the temperature measuring equipment.
Features and Benefits
High stability sensing element with a precision output
IEC 60751 Class B accuracy/tolerance
Temperature measurement range of -50 to +200°C
4 lead wires for accurate readings
Leads connect to any 2 3 or 4 wire PT100 instrument
Rigid 316 corrosion resistant stainless steel sheath for protection of sensing element
Silicone rubber insulation can withstand a wide temperature range and offers flexibility, resistance to oils and solvents and good weathering properties.
These PRT sensor probes with their robust design are ideal for use in many general purpose industrial and commercial applications including the following:
Air conditioning and refrigeration
Stoves and grills
Air, gas and liquid temperature measurement
Exhaust gas temperature measurement
Frequently Asked Questions
How Does a PRT Temperature Sensor Work?
The PRT temperature sensor works by placing the sensor element (or process end) into the equipment or process that requires temperature measurement. As the temperature of the platinum resistance thermometer increases its resistance to the flow of electricity increases. For every increase per degree of temperature the electrical resistance also changes by a set ratio, this is called the temperature coefficient. For platinum, this ratio is .00385 ohm/ohm/°C which means for a Pt100 with a 100 ohm resistance the increase in resistance per degree of temperature would be 0.385 ohms. The total resistance reading can, therefore, be measured and converted into temperature.
How is the Resistance Measured?
The resistance generated by the temperature sensor is measured by passing current through one of the wires to produce a voltage. This voltage is then measured using a suitable bridge or voltmeter and the resistance calculated in ohms using Ohms Law (R=V/I). Once the resistance is known you can convert it to a temperature reading using a calibration equation or a Pt100 table. A temperature measurement device or calibrator can also be connected to the leads of the probe that will automatically convert the measured resistance into a temperature reading.
|Thermocouple Type||PT 100|
|Probe Material||Stainless Steel|
|Maximum Temperature Sensed||+200°C|