Air | Gas | Mould
Tubular Heater
Bundle Heater
Finned Heater
Ducting Heater
PTC Heater
Anti Condensation Heater
Air Immersion Heater
Cartridge Heater
Silicon Carbide (SIC) Heater
Ceramic Bobbin Heater
Pencil Heater
Ceramic Fiber Heater
Flexible Silicone Rubber Heater
Air Circulation Heater
Hot Air Blower
Ceramic Infrared Heater
Quartz Infrared Heater
Band Heater
Ceramic Band Heater
Strip Heater
Cast-In Heater
Mineral Insulation Heater
Halogen Infrared Heater
Black Infrapara Heater
Infrared Silica Quartz Heater
Liquid
Immersion Heater
Teflon Heater
Inline Circulation Heater
Bobbin Heater
Tank Heater
Drum Heater
Jacket Heater
Explosion Proof Heater
Defrost Heater
Specialty Heating + Controls
Heat Trace
Control Panel & System Solutions
Industrial Hot Water Calorifier
Industrial Hot Water System
Electric Heater Steam Boiler
Oil Flushing Skids
Thermal Fluid Analysis
Heat Tape/Heated Sample Lines
Heated Hoses
Flexible Ceramic Heating Pads
Explosion Proof Air Heater
Explosion Proof Duct Heater
Explosion Proof Immersion Heater
Explosion Proof Line Heater
Explosion Proof Process Heater
Oven | Furnace
Thermocouple
RTD
Sanitary Probe
Platinium Curve Rigid Averaging
Cable Thermocouple
MI Thermocouple
HVAC Temperature Sensor
Handheld Probe
Wireless Temperature Transmitter
Green Mark Precision Temperature Sensor
Thermocouple Accessories
Thermowell
Temperature | Humidity | Dew Point
Temperature Controllers
Indicator
Transmitters
Data Logger
Temperature Gauges/Thermometer
Refrigeration
Thermostats
Handheld | Infrared | Thermal
Water Activity
Dehumidifiers | Humidifiers | Air Purifier
Thermocouples
RTD | PT100 Sensors
ATEX thermocouples
Thermowells
Ceramic Rollers
Calibration
Pressure
Pressure Transducers | Transmitters
Differential Pressure Transmitter
Pressure Gauges
Pressure Switches
Accessories
Level
Float Switch
Hydrostatic Level Probe
Level Switches & Transmitters
By-pass Level Transmitter
Capacitance Level Switch
Magnetic Level Sensor
Ultrasonic Level Sensor
Vibrating Level Switch
Air | Gas | Liquid Flow
Air Flow/Air Velocity Meter
Variable Area Flow Meter
Electromagnetic Flow Meters
Sanitary Magnetic Flow Meter
Positive Displacement Flow Meter
Insertion Magnetic Flow Meter
Liquid Turbine Flow Meter
Coriolis Mass Flow Meter
Ultrasonic Flow Meter
Vortex Flow Meter
Gas Roots Flow Meter
Gas Turbine Flow Meter
Oval Gear Flow Meter
Fluorescence Dissolved Oxygen
Recorder
SSR & Power Regulator
Signal Conditioners & Isolators
Power Supply
Communication Products & Converters
Control Components
- Sensors
- Temperature Controller
- Timer / Counter
- Indicator
- Switches
- Terminal Block / Buzzer
- Signal Light
Frequnecy Inverter | Drive
Thermocouple Cable
Extension Cable
Heat Resistant Cable
Power/Instrument/Control Cable
Braided Screen Cable
Solar Cable
Low Voltage Cable
LK Instrumentation Cable
Offshore Cable
Control Cable
Marine Cable
Air-Operated Double Diaphragm Pumps
Control and Measuring Instruments
Motor Driven Pumps
Solenoid Dosing Pumps
Mobile Safety / Ex-Proof Smartphone
Products for Automotive Industry
Test Instruments
Wireless Sensor, Transmitters, Receivers, Meter & Controllers
Dpstar Group is the largest manufacturer of thermocouples based in Malaysia. We design and manufacture a complete line of high-quality standard and custom temperature sensors including thermocouples, RTD’s, thermowells, and float switches as well as a wide selection of temperature accessories. Through our engineering capabilities and 30 years of experience, our trademark brand Maltec-T is the only CE-certified manufacturer for thermocouples in Malaysia. With extensive experience, unique technology, and hard commitment, we become one of the best quality suppliers in the temperature sensors field. We offer a full range of design services to provide you with the benefit of our knowledge and experience.
These thermocouples are specifically designed for heavy-duty temperature sensing applications like ovens, machines, and industrial environments where their robust construction ensures a prolonged sensor life. Almost all our sensors are available in ATEX or IECEx execution.
TA 1021 is designed to measure temperatures in combination with a Thermowell for industrial, high pressure, and vibrating environments. Thermowell connection by nipple-union-nipple connection 1/2″NPT male. Nipple-Union-Nipple material: SS316. Temperature range: -200°C to 600°C or higher depending on the thermocouple. Coated aluminium connection head. Screw type cover with retaining chain. Cable entry M20x1.5mm threaded. Springloaded replaceable insert. Calibration K, T, J, E, N, U, or L. Single or duplex.
Thermocouples are electrical devices used to measure temperature. Their accuracy, rapid reaction time, and ability to withstand heavy vibrations, high pressure, and extreme temperatures make them ideal for a wide range of applications.
To have a full understanding of how a thermocouple works, it’s important to know what a thermocouple is. A Thermocouple is a type of temperature sensor which is made up of two wires of dissimilar metals. It measures temperature using the Seebeck effect. The Seebeck effect can be elaborated as the generation of differential voltage due to the difference in electrical conductivity of two different materials. Named after French scientist, Thomas Johan Seebeck, who confirmed if two dissimilar metals are joined and heated, the difference in a temperature rise of these two metals gives rise to electromotive force (EMF). The same concept is reversed in the application of thermocouple.
As the electric current is passed through two welded dissimilar metals, the voltage difference occurs, which is reverse projected to calculate temperature difference. As, the electric current passes through a junction, due to limitations in conductivity and resistance of the metals, a rise in temperature takes place. Both the materials heat up at different temperatures and the difference in conductivity gives two different voltages for two different metals.
There are many types of thermocouples, each with its own unique characteristics in terms of temperature range, durability, vibration resistance, chemical resistance, and application compatibility. Type J, K, T, & E are “Base Metal” thermocouples, the most common types of thermocouples. Type R, S, and B thermocouples are “Noble Metal” thermocouples, which are used in high-temperature applications.
Type B Thermocouples Type B thermocouples can be used up to 1600°C with short term excursions up to 1800°C. They have a low electrical output, therefore are rarely used below 600°C. In fact the output is virtually negligible up to 50°C, therefore cold junction compensation is not usually required with this type.
Type E Thermocouples Type E thermocouples are often referred to as Chromel-Constantan thermocouples. They are regarded as more stable than Type K, therefore often used where a higher degree of accuracy is required. Note – Constantan is Copper-Nickel.
Type J Thermocouples Type J thermocouples degrade rapidly in oxidising atmospheres above 550°C. Their maximum continuous operating temperature is around 750°C though they can with stand short duration excursions to 1000°C. They are generally not used below ambient temperature due to condensation forming on the wires leading to rusting of the iron. Note – Constantan is Copper-Nickel.
Type K Thermocouples Type K thermocouples are the most widely used thermocouples in the Oil & Gas, and refining industries due to their wide range and low cost. They are occasionally referred to as Chromel-Alumel thermocouples. Note that above about 750°C oxidation leads to drift and the need for recalibration.
Type N Thermocouples Type N thermocouples can handle higher temperatures than type K, and offer better repeatability in the 300 to 500°C range. They offer many advantages over Type R & S at a tenth of the cost, therefore prove to be popular alternatives.
Type R Thermocouples Type R thermocouples cover similar applications as Type S but offer improved stability and a marginal increase in range. Consequently, Type R tend to be used in preference to Type S.
Type S Thermocouples Type S thermocouples can be continually used at temperatures up to 1450°C. They can with stand short duration excursions up to 1650°C. They need protection from high temperature atmospheres to prevent metallic vapour ingress to the tip resulting in reduction of emf generated. Protection commonly offered is a high purity recrystallised alumina sheath. For most industrial applications thermocouples are housed in a thermowell.
Type T Thermocouples The Type T is a very stable thermocouple and is often used in extremely low temperature applications such as cryogenics, ultra low freezers and laboratory.
Each type of thermocouple has multiple colors associated with it. Standard grade and extension grade wire have their own respective colors, while the positive and negative leads also have associated colors.
The following chart includes thermocouple color codes by country:
Ungrounded In this type, the junction is suspended within the sheath, surrounded by insulation, and not touching the edges. This helps protect the sensor and provides a steady and accurate temperature measurement reading. That, however, comes at the cost of response time as any temperature changes must permeate through to the enveloped junction.
Grounded A grounded measurement junction is the union of two dissimilar metals that also touches the outside protective sheath. Any temperature changes will be picked up much quicker than an ungrounded probe with this direct physical connection. This rapid response comes with a risk though. By connecting the hot junction of the thermocouple to the protective sheath there is the potential for a ground loop to be created. This is another (undesirable) path for current to travel through and will interfere with the signals of your thermocouple. This interference will lead to inaccurate readings.
Exposed Making most direct contact with the process, exposed measurement junctions are the quickest responding thermocouple junction type. These may have some sort of protective layer but ultimately the union of the two dissimilar metals is bare. The drawback to this type is the direct wear on the junction and either the acceptance of often replacing the instrument or restricting its use in harsh environments.
Maltec-T Thermocouple_DpstarGroup
There are no reviews yet.
Your email address will not be published. Required fields are marked *
Your review *
Name *
Email *
Save my name, email, and website in this browser for the next time I comment.
Product Enquiry
Your Name (required)
Your Company Name (required)
Your Email (required)
Your Contact No
Product Name
From where you know about us Google SearchPaid SearchSocial MediaLinkedinFacebookEmail MarketingReferral
Your Message