Thermocouple Sensors
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Electronic sensors such as thermocouple sensor, RTD & M.I. Sensor''s consist of two dissimilar metallic wires, the positive and the negative wire, which have a common junction at one end (i.e. Hot Junction). A difference of temperature between hot junction and cold junction (i.e. free ends) of thermocouple legs produces thermoelectric voltage (mV), the value of which depends upon the temperature difference between hot junction and cold junction.
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 | Temperature Sensors | | |
| General purpose temperature sensors, also known as electronic sensors and protection head thermocouples are used as sensing device for measuring, controlling and recording temperature in the range -200°C ~ 1200°C. Temperature sensors are being widely used in various industrial fields such as chemicals, fertilizers, Iron & Steel, Non-Ferrous metal, Glass Cement and Refractory factories Nuclear & Thermal Power Generating Plants etc. Technical specifications are as follows:
Type:
Available in:
- IP 65/ General purpose whether proof head with single cable entry
- Flame proof (FLP) Head with single/double cable entry
- Miniature head with single cable entry
- IP 67 whether proof single, double cable entry
Available in:
J Type, K Type, R Type (Pt Rh 13%/Pt) & 'S' type (Pt. Rh. 10%/Pt) |
| RTD Thermocouple Sensors | | |
RTD (Resistance Temperature Detector) Thermocouple sensors are most suitable for measuring barrel & die temperature in injection moulding machine, blow moulding machine, extruder etc. They consist of a protective metal casing, surrounding the thermocouple wires which are embedded in magnesium oxide. RTD Thermocouple sensors consists of the follwing features:
Type:
- Straight Spring Loaded with Bayonet
- 'L' Spring Loaded with Bayonet
- Transition Joint (Hex Pencil Bush)
- Transition Joint (Clamp Type)
- Thermocouple Sensor with Fix Bolt
- 'LRB' Spring Loaded with Bayonet
- 'LBF' Spring Loaded with Bayonet
- Fully Tip Adjustable with Bayonet
- Thermocouple sensor for hot runner of injection moulding machine
- Straight Rotating Spring with Bayonet
- 'L' Rotating Spring with Bayonet
- Washer Thermocouple (Type 1)
- Washer Thermocouple (Type 2 with pipe & spring)
- Tip Adjustable with Bayonet on SS stem.
- In melt Bolt Type
- In melt Bolt Type (L)
- Holder Movable on spring type
- Skin type thermocouple sensor
Application: Bayonet Thermocouple:
Fixed & Adjustable Bayonet Thermocouples are Most suitable for measuring Barrel & Die Temperature in injection moulding machine, Blow moulding machine, Extruder etc. Spring loaded sensor ensures tip contact with surface for accurate temperature measurement.
Washer Thermocouple:
Most Suitable for continuous Measurement of flat-surface temperature up to 400°C. Ideal for applications like packaging machines, Rubber moulding machines, Hot Plates / Platones etc.
Transition Point Thermocouple:
General Purpose J, K, T Type industrial Thermocouple with integral Cable for Low Temperature Measurement. |
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| Mineral Insulated Thermocouple Sensors  | | |
| Mineral insulated thermocouples consist of a protective metal casing surrounding the thermocouple wires which are embedded in magnesium oxide.
Available Measuring Junctions:
- Exposed Junction
- Ungrounded Junction
- Grounded Junction
Available Size:
Ø1.5mm Ø3mm, Ø4.5mm, Ø6mm Ø8mm in simplex & duplex
Types:
- M I Thermocouple with flexible lead wire with Potseal
- M I Thermocouple with plug & socket (Simplex / Duplex)
- M I Thermocouple Head with adjustable compression fitting (IP 65 Head / FLP Head)
- M I Thermocouple with Spring Loaded SS Plate
Application: Because for their flexibility they are particularly suitable for measurements at inaccessible point |
| RTD Sensors & Assemblies | | |
RTD (Resistance Temperature Detector) operates on the principle of change in electrical resistance in wire as a function of temperature.
Available in: Wire wound & thin film (simplex /d duplex)
Types:
- Transition (Pencil) type
- Straight spring loaded with bayonet
- Transition (with fix / adjustable bolt) Type
- Transition (with brazed clamp) Type
- IP 65 / FLP / GP Head with Fix / adjustable compressor fitting type
Available Termination:
- 2 wire 3 wires (for simplex)
- 4 wire 6 wires (for duplex)
Available cable / wire lead insulation: Teflon / Teflon, teflon / fg/ ss, teflon/ silicon rubber and stainless steel. |
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