Type T mineral insulated thermocouples with threaded pot and tails, specially designed to suit many applications and processes due to their high flexibility.
316 stainless steel
Diameters include 1.0, 1.5 and 3.0mm
Insulated hot junction
Probe temperature range from -100 ºC to +400 ºC
100mm PFA twin twisted tails, +brown/-white colour coded in accordance with IEC 584
From RS PRO, comes a range of high-quality PRT (Platinum resistance thermometer) PT100 probes with compact KNS heads. Manufactured with an aluminium alloy weatherproof connection head and 316 stainless steel construction, these class B probes are an excellent solution for temperature measurement.
These PRT probes have a variety of application use such as;
RS PRO is our own brand of high-quality products whilst bringing you great value for money. Our wide range of products have been engineered to meet high industry standards, so you are ensured reliable and robust solutions.
From RS Pro a range of Type K and Type T fine wire temperature sensing thermocouples ithat meet ANSI MC96.1 stanards with class 1 tolerance for optimum accuracy. These Type K and type T wire temperature sensors consist of a durable Teflon PFA insulated twin-twisted lead and a single element exposed welded junction for a fast response time.
A thermocouple is a sensor used to measure temperature in a range of different processes and consists of two wire legs made from different metals joined together at their two ends to form two junctions. The hot, or measuring junction is connected to the body whose temperature is going to be measured. The cold junction or reference junction is connected to a body of known temperature. When the measuring junction is placed on something hot a voltage or potential difference between this and the reference junction occurs. This voltage can then be converted into a temperature measurement using thermocouple reference tables. This process is also known as the Seebeck Effect
A welded exposed junction is where the thermocouple wires are welded together but are not surrounded by the outer sheath. The ends of the wire are directly inserted into the process. This means the thermocouple has a high sensitivity and response time. Welded exposed junctions are more prone to corrosion and are recommended for measuring flowing or static non-corrosive gas temperatures
• ANSI MC96.1 class 1 tolerance for optimum accuracy
• Class 1 cable specification in accordance with BS EN 60584-3:2008
• Exposed welded junction for fast response
• Durable Teflon PFA insulation for resistance to oils, acid, fluids and good mechanical strength and flexibility
• Temperature ranges from -75 to +250°C
These K Type and T type fine wire thermocouples are ideal for test and development applications including test and measurement, temperature mapping and OEM applications
ANSI minteral insulated thermocouples with threaded pot and tails.
310 stainless steel or Inconel® Alloy 600 sheath
Highly flexible, sheath can be bent/formed to suit many applications and processes
Insulated hot junction
Probe temperature range: -40°C to +1100°C for over 1.0mm diameter, -40°C to +750°C for 1.0mm diameter and below
M8 x 1.0mm fine pitch threaded pot seal (200 ºC)
100mm tails, PFA twin twisted 7/0.2mm, colour coded to ANSI MC96.1
Fast response type K thermocouple with grounded hot junction, 310 stainless steel or Inconel® Alloy 600 sheath, threaded pot seal & tails.
0.5mm diameter
Hot junction of thermocouple insulated or grounded to outer sheath for very fast response
Choice of 310 stainless steel or Inconel® Alloy 600 sheath
Highly flexible, sheath can be bent/formed to suit many applications and processes
Probe temperature range: – 40º C to +750º C
100mm tails, PFA Teflon® twin twisted 7/0.2mm
From RS Pro a range of rugged Type K thermocouple temperature sensing probes conforming to IEC 584 standards. These Type K thermocouple sensors feature an Alloy 600 probe sheath and are terminated with a miniature IEC flat pinned plug with a maximum temperature range of 200°C, for a quick and simple connection. The sheath of the probe is mineral insulated making it flexible, allowing it to bent and formed to suit a wide range of applications. The thermocouple has an ungrounded insulated hot junction for a reduction in electrical interference
A thermocouple is a sensor used to measure temperature in a range of different processes and consists of two wire legs made from different metals joined together at their two ends to form two junctions. The hot, or measuring junction is connected to the body whose temperature is going to be measured. The cold junction or reference junction is connected to a body of known temperature. When the measuring junction is placed on something hot a voltage or potential difference between this and the reference junction occurs. This voltage can then be converted into a temperature measurement using thermocouple reference tables. This process is also known as the Seebeck Effect
An insulated or ungrounded junction is where the thermocouple wires are welded together and fully covered by but insulated from the outer protective sheath, often by the use of mineral insulation. The advantage of this is that there is a reduction in electrical interference and a stable reading
Mineral insulation is used to insulate the thermocouple wires from one another and from the metal probe sheath that surrounds them. The sheath is filled with a highly compacted magnesium oxide powder that prevents the conductors from making contact with one another other than at the fixed junction. The high density of the mineral powder enables the thermocouple to have a rapid response as it promotes a fast heat transfer between the conductor and the sheath. Mineral insulation also helps to protect the thermocouple wire from environmental damage including corrosion, prevents electrical interference and allows the cable to be flexible whilst maintaining its mechanical strength
• Durable alloy 600 stainless steel sheath for protection against corrosion and oxidation
• Meets IEC 584 standards
• IEC colour coded miniature plug for quick and easy connection
• Mineral insulation for flexibility and durability
• Insulated hot junction for reduction in electrical interference
Type K Thermocouples (Nickel-Chromium / Nickel-Aluminium) are the most common type of thermocouple and are both accurate and flexible with a wide temperature range. Typical applications for these mineral insulated Type-K thermocouple probes include heat exchangers, power stations, brick and cement kilns, heat treatment and annealing furnaces, thermostats, food thermometers, vehicle diagnostics and in laboratories
Pt1000 elements to IEC 751 Class A & B
Thin film construction
Suits surface & immersion applications where protected
Vibration resistant
From RS Pro a high-quality and reliable Pt100 and Pt1000 PRT (Platinum Resistance Thermometer) or RTD (Resistance Temperature Detector). These temperature sensors have a thin film construction for accurate and reliable temperature measurement along with a fast response time to temperature changes. This design is also resistant to both vibration and shock. The flat design of these PRTs makes them ideal for measuring temperatures on surfaces
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 it’s resistance to the flow of electricity. This resistance can be measured and converted to a temperature reading. ’Pt’ stands for platinum (platinum wire or film) and ’100’ means the temperature sensor has a resistance of 100 Ohms at 0°C and ‘1000’ means it has a reistance of 1000 Ohms at 0°C. Platinum is the most reliable metal due to it’s linear resistance to temperature relationship over a large temperature range.
A thin film platinum RTD consists of a thin layer of platinum (usually 1 micron thick) on a ceramic substrate. This is then covered with a layer of epoxy or glass for protection against high voltages and to maintain a high insulation resistance. The thin layer of platinum results in the sensor having a high resistivity and fast response times to changes in temperature. Thin film RTD elements are sometimes incorporated into protective housings or other types of assembly allowing them to be used in harsh conditions
• Thin film construction
• High stability and accurate output
• Linear output over a wide operating range
• A fast thermal response time of 0.1s
• Resistant to vibration and shock
• Temperature measurement range from -50 to +500°C
• 10 mm lead wires
These thin film PRT temperature sensors are suitable for surface and immersion applications where protected. Their flat design means they offer a minimally intrusive means of measuring temperatures on flat surfaces. Applications include the following:
• Automotive industry
• Chemical industry
• Micro-electronics
• Air conditioning and refrigeration
• Air, gas and liquid temperature measurement
• Food processing
• Laboratories
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 it’s 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.
The resistance generated by the Pt100 or Pt1000 RTD 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 Ohm’s Law (R=V/I). Once the resistance known you can convert it to a temperature reading using a calibration equation or a Pt100/Pt1000 table. A temperature measurement device or calibrator can also be connected to the sensor that will automatically convert the measured resistance into a temperature reading
