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New, more robust RTD temperature sensor

From Danfoss, Inc. - Industrial Automation Division

To prolong the life of marine diesel and gas engines, it's important to monitor and control exhaust gas temperatures - and this requires an accurate temperature sensor. Based on two types of sensor technology, temperature sensors either use a Resistance Temperature Detector (RTD) with PT100 thin film technology, or thermocouples.
Both technologies have their pros and cons and in Asia, RTDs are the sensor of choice, while in Europe thermocouples are popular. But this practice is about to change, thanks to a new sensor from Danfoss that combines the best from both technologies.

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Products & Services
RTD Temperature Transmitters
Resistance temperature detector (RTD) temperature transmitters convert RTD resistance measurements to current signals, eliminating the problems inherent in RTD signal transmission via lead resistance.
Thermocouple Temperature Probes
Thermocouple temperature probes are bimetallic probes that are used in various temperature-sensing applications. They consist of two wires, each of which is made of a different metallic element or alloy.
Thermocouple Temperature Transmitters
Thermocouple temperature transmitters convert the small millivolt output of a thermocouple to a current signal (typically 4-20 mADC) that is immune to noise and voltage drops over a long distance.
Thermostats and Thermal Switches
Thermostats and thermal switches are electro-mechanical on/off switches that are activated by temperature changes. They are typically used to control heating and cooling systems.
RTD Temperature Probes
RTD (resistive thermal device) temperature probes are types of thermal resistors which measure temperature as a function of resistance.
Product Announcements
Automationdirect.com - Thermocouple and RTD Temperature Transmitters
NEW…ProSense head-mount & DIN rail-mount temperature transmitters! Non-programmable versions include thermocouple types J, K or T, & 3-wire RTD type Pt100. Head-mount models work with... (read more)
Automationdirect.com - More Temperature Sensors--Save up to 50%
ProSense -40 to 185°F room temperature sensors are new. Also added are Type T thermocouples (down to -328°F), Type K thermocouple probes (up to 2100°F), an immersion RTD sensor (-58 to... (read more)
Conax Technologies - Custom Temperature Sensors
Conax Technologies built its reputation on exceptional engineering capabilities and dedication to a thorough understanding of all aspects of temperature sensor measurement. That tradition continues... (read more)
Madison Company - Temperature Sensors
Madison Temperature Sensors are offered in several standard designs and application-specific designs based on your unique application. Among others, we commonly supply Type K, J & T Thermocouples,... (read more)
Danfoss, Inc. - Industrial Automation Division - Quick Reacting Temperature Sensor
The Danfoss MBT 5310 is a marine approved temperature sensor specially designed for measuring bearing temperatures. Not only used in Marine applications, this sensor is also highly recommended for use... (read more)
Smith Systems, Inc. - Temperature Sensors
Thermo-Tran High Reliability Temperature thermistor sensor probes are available in a variety of configurations. (read more)
Pyromation, Inc. - RTDs Resistance Temperature Detectors
Resistance temperature detectors (RTD) accurately sense temperature with an excellent degree of repeatability and interchangeability of elements. The RTD is composed of certain metallic elements whose... (read more)
 
Topics of Interest

The most widely measured phenomena in the process control environment is temperature. Common elements, such as Resistance Temperature Detectors (RTDs), thermistors, thermocouples or diodes are used to...

Overview A primary element is a sensor or detector that responds quantitatively to the measured variable and performs the initial measurement operation. A primary element performs the initial...

6.3 LCSR The LCSR method was developed to measure remotely the response time of RTDs and thermocouples while the sensor is installed in an operating process. The test involves injecting the sensor...

6.1 Reasons for Test In-situ response-time testing is performed on RTDs and thermocouples in nuclear power plants for one or more of the following reasons: To measure the sensor's "in-service"...

UNIT 2 Measurement Error This unit describes the contributors to the accumulated measurement error and some of the design and installation modifications and new sensor technologies to reduce these...