Platinum Resistance Thermometer
Product Code : JA-EE-7579
The Platinum Resistance Thermometer (SKU JA-EE-7579) is a teaching instrument that shows how the electrical resistance of platinum changes with temperature and how that change is used for accurate temperature measurement. A fine platinum wire of 2 ohm resistance is wound non-inductively on a mica frame and soldered to copper leads, with 4 mm socket terminals on the base. JaincoLab supplies this platinum resistance thermometer to college and senior-school physics laboratories for use below 150°C.
Specifications
The thermometer element is a fine platinum wire of 2 ohm resistance, wound non-inductively on a mica frame and soldered to copper leads that end at 4 mm socket terminals on the base, and the instrument is suitable for temperatures below 150°C.
| Product | Platinum Resistance Thermometer |
| SKU | JA-EE-7579 |
| Sensing element | Fine platinum wire, 2 ohm resistance |
| Winding | Non-inductive, on a mica frame |
| Leads | Soldered to copper leads |
| Terminals | 4 mm socket terminals on the base |
| Temperature range | Suitable for temperatures below 150°C |
| Purpose | Showing the principle of the platinum resistance thermometer and accurate temperature measurement |
Experiments with the platinum resistance thermometer
The platinum resistance thermometer is used in physics practicals to measure how the resistance of a platinum wire rises with temperature, to find the temperature coefficient of resistance of platinum, and to use a resistance reading to work out an unknown temperature below 150°C.
- Measuring the resistance of the 2 ohm platinum coil at different water-bath temperatures
- Determining the temperature coefficient of resistance of platinum
- Calibrating at two fixed points and then finding an unknown temperature from its resistance
- Resistance measurement with a Wheatstone bridge or post office box connected through the 4 mm sockets
- B.Sc and senior-secondary practicals on the variation of resistance with temperature
Scope of supply and ordering
The listing covers the platinum resistance thermometer as described: a 2 ohm platinum wire wound non-inductively on a mica frame, soldered to copper leads, with 4 mm socket terminals on the base. The bridge, galvanometer, water bath and reference thermometer used in the experiment are separate items. Accessories, spares and quantities are confirmed on the quotation.
Minimum order quantity, lead time and packing are confirmed on each quotation according to the quantity and the delivery destination. JaincoLab supplies single units for a department, sets for college practical batches, and bulk and tender orders, including export to Africa, the Middle East and South and South-East Asia.
Frequently asked questions
What is the resistance of the platinum element?
The element is a fine platinum wire of 2 ohm resistance, wound non-inductively on a mica frame.
What temperature range is the thermometer suitable for?
It is suitable for temperatures below 150°C.
How is it connected to a measuring circuit?
The platinum wire is soldered to copper leads that end at 4 mm socket terminals on the base, so it connects to a bridge circuit with 4 mm plug leads.
Why is the wire wound non-inductively?
A non-inductive winding keeps the inductance of the coil low, so the bridge balances on its resistance alone.
Related products
The Electricity Equipment range lists bridges, resistance coils and meters for the same practicals from JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order the Platinum Resistance Thermometer, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Institutions and contractors buying under a tender can also reach us via the tenders page.
