E+H PT100 Platinum Resistance Thermometer Transmitter
1.What is PT100
E+H PT100 Platinum Resistance Thermometer Transmitter, also called EH PT100 or PT-E100, is a device. It measures temperature by checking changes in the electrical resistance of platinum.``` The “100” represents a resistance of 100 ohms at 0°C.
The PT100 temperature sensor, known for its high accuracy, stability, and repeatability, widely serves process and laboratory applications for reliable temperature measurement. It meets international standards for RTD temperature sensors. You can get it as a single or double Pt100 sensor. It comes in accuracy classes A, B, or AA.
2.What Does PT100 Stand For
PT100 means Platinum Resistance Thermometer or Platinum RTD. It has a resistance of 100 ohms at 0°C. “PT” refers to the platinum used for sensing. “100” shows its standard resistance value at 0°C. The PT100 conforms to IEC 60751 and other international standards for resistance temperature detectors.
3.How Does a PT100 Work
A PT100 detects changes in the electrical resistance of a platinum wire or thin film as the temperature changes. As the temperature increases, the platinum’s resistance rises predictably, allowing precise determination of temperature. This principle allows the E+H PT100 to provide accurate temperature measurements. It also has a fast response time over a wide temperature range.
4.Why PT100 is Used in RTD
Engineers use the PT100 in RTD temperature sensors because platinum offers superior stability, linearity, and chemical resistance. It maintains accuracy and reliability over high temperatures and long operational periods. These qualities make it ideal for demanding and safety-relevant applications, including harsh environments and explosive areas where consistent temperature measurement is critical.
5.What is PT100 in RTD
A PT100 in an RTD is a platinum resistance thermometer element that provides a resistance of 100 ohms at 0°C. You can set it up as a single or double Pt100 sensor. It has accuracy classes A, B, or AA, based on what you need. The wire configuration (2-wire, 3-wire, or 4-wire) helps ensure measurement precision and error compensation in industrial systems.
6.Application Areas
Engineers designed the E+H PT100 Platinum Resistance Thermometer Transmitter for harsh conditions. Similar to the E+H TMT181-A31BA.
You can use this device in explosive areas. Also good for process and lab uses. It provides reliable temperature measurement from -200 °C to +500 °C.
You can add the device to RTD assemblies in thermowells. This keeps it safe from process conditions. It also ensures quick response times and stable measurements.
The TMR31 series delivers excellent cost performance, compact design, and reliable operation. Its vibration-resistant membrane sensor ensures the fastest response time and maximum safety, even in dynamic process environments.
7.Advantages
l Single or double Pt100 sensor available in accuracy class A, B, or AA
l Designed for use in demanding and safety-relevant applications
l Suitable for harsh environments and explosive areas
l Compact and space-saving design
l 4-wire Pt100 output or programmable 4–20 mA transmitter
l Configuration and visualization via ReadWin® 2000 PC software
l Displays and adjusts fault information per NAMUR NE43
l Certified for marine applications
l Measurement Principle
l Resistance thermometer (RTD) — based on the temperature-dependent change in the electrical resistance of platinum.
8.Features / Applications
l Compact temperature probe with short response time
l Threaded process connection, available with or without extended neck
l Ideal for industrial process measurement, laboratory testing, and automation systems
9.Thermowell
l RTD assemblies installed in thermowells
l Thermowell material: 1.4404 (316L)
l Outer diameter: 4.00 mm or 6.00 mm
l Max insertion depth: 600 mm (23.62")
l End type: Straight tube
l Surface finish: Ra 0.8 μm (32 μin.)
10.Process Connection Options
G1/4", G1/2", NPT1/4", NPT1/2", M14x1.5, M18x1.5, BSPT R1/2"
11.Operating Conditions
l Operating Temperature Range (PT100): -50...200 °C (-58...392 °F)
l (Extended temperature range for PT100 elements: -200 °C...+500 °C)
l Maximum Process Pressure (static): 100 bar (1,450 psi) at 20 °C
l Measurement Accuracy: Cl. A, complies with IEC 60751
l Response Time: t50 = 1 s, t90 = 2 s
l Output Signal: 4–20 mA
12.Certifications
l German Lloyd (GL)
l UL 3111-1
l EAC Certified
The E+H PT100 Platinum Resistance Thermometer Transmitter offers precision, durability, and cost-effectiveness. It provides reliable temperature measurement in a wide range of temperatures and tough industrial conditions.
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