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Product Features
  • 1200°C maximum operating temperature
  • High stability heat source with temperature range 400 to 1150°C
  • Accepts thermocouples up to 7.5mm diameter
Delivery options

At Cadmus Products we aim to deliver orders efficiently and at highly competitive rates. 

  • We can ship consignments of all shapes and sizes and hazardous content across the UK and worldwide. Most of our orders are sent via DHL, however sometimes we may use other couriers.
  • If you are purchasing a laboratory product online you can find out the price of shipping checkout. If you are obtaining a quote for a product, then we will email you
    with our best shipping prices along with your quote.
  • Please see our delivery page for full information

Carbolite PTC Thermocouple Calibration Furnace


The Carbolite PTC Thermocouple Calibration Furnace is designed to provide a high stability portable heat source for the calibration of thermocouples using the comparison method.

Standard features

  • Thermocouple is inserted & compared to the PTC 12/20's displayed temperature
  • PID temperature control & separate temperature display to 1.0°C resolution
  • The special work tube design provides better temperature uniformity than is typical for a furnace of this size
  • The metallic work tube is earthed for operator safety when testing metal sheathed mineral insulated mineral thermocouples
  • Rapid heat up and stabilisation makes it ideal for use in the laboratory or on site
  • Portable & self contained

Options (specify these at time of order)

  • Factory calibration certificate stating the error between the workspace temperature & the displayed value at 700°C, 900°C, & 1100°C
  • A UKAS traceable calibration certificate for customer defined setpoints is available
  • A UKAS calibrated thermocouple is available
  • PTC1220-208SN PTC 12/20/150 1200°C, 20mm Ø, Thermocouple Calibration Furnace (200 - 210 V-SR-single phase + N)
  • PTC1220-230SN PTC 12/20/150 1200°C, 20mm Ø, Thermocouple Calibration Furnace (220 - 240 V -SR-single phase + N)
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