RS PRO Type K Thermocouple 175mm Length, 6mm Diameter, -50°C → 1100°C

  • RS Stock No. 621-2221
  • Manufacturer RS PRO
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): FR
Product Details

RS Pro Type J and K IEC Thermocouples with Adjustable Bayonet Probe

From RS Pro a range of Type J and Type K thermocouple temperature sensors that conform to IEC 60584 standards with a grounded hot junction for a fast resposne time. These durable type J and Type K thermocouples have a 2 m long wire with glass fibre insulation and a stainless steel braid. The probe is fitted with an adjustable spring loaded bayonet probe to enable it to be fitted securely.

How does a Thermocouple Work?

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

What is a Welded Grounded Junction?

In a welded grounded junction the two thermocouple wires and sheath are welded together to form one junction at the probe tip. These thermocouples have a fast response time because all the thermocouple is making contact with the sheath allowing the heat to transfer easily.

What is an Adjustable Bayonet Probe

The probes of these thermocouple sensors have an adjustable screw threaded spring 175 mm long with a slotted bayonet fixing cap. The bayonet cap screws along this spring and allows the immersion length of the thermocouple probe to be adjusted. Once in place the bayonet cap is secured to a bayonet adapter (which must be purchased separately - see stock number 621-2243) allowing the thermocouple to be firmly held in place within the recess. The advantages of this method of fixing are;

• Immersion depth can be adjusted easily
• Secure connection within machine recess
• Positive pressure at the thermocouple tip and full immersion in process

Features and Benefits

• Adjustable bayonet probe
• Grounded hot junction
• Fast response time
• Rugged glass fibre insulated wire with stainless steel overbraid

Applications

These Type J and Type K adjustable bayonet probe thermocouples are designed for direct installation into the process. The bayonet fitting makes them suited for applications where the thermocouple sensor tip is fitted directly into a drilled hole or recess in machinery. Typical applications include the plastics and rubber industry where they are used in extrusion and moulding machinery

Standards

IEC-BS 4937 60584-2 & IEC-BS 4937 60584-3

Specifications
Attribute Value
Thermocouple Type K
Probe Diameter 6mm
Probe Length 175mm
Maximum Temperature Sensed +1100°C
Probe Material Stainless Steel
Termination Type Cable
Cable Length 2m
Standards Met RoHS Compliant
Response Time 0.7 s
36 Within 3 working day(s) (Global stock)
86 Within 4 working day(s) (Global stock)
Price Each
SGD 40.62
(exc. GST)
SGD 43.46
(inc. GST)
units
Per unit
1 - 5
SGD40.62
6 - 11
SGD39.28
12 +
SGD38.77
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