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Annealing Furnace,
Model 414

Isotech Annealing Furnace, Model 414
Ideal for Annealing and Conditioning SPRTs
30°C to 1000°C (1832°F)
  • Remove Strain and Hardening from your platinum coils
  • Maintenance Free Use
  • Available with programmable controller with communications standard
  • Control: 0.1°C Resolution
  • Supply: 110VAC, 3kw, 50/60Hz CTE (230VAC and 110VAC to 110VAC Isolating Transformers are available)

Product Code: 414
Contact us for pricing

   Product Description    Specifications
The Model 414 Annealing Furnace is designed to heat, anneal and cool SPRTs (Standard Platinum Resistance Thermometers) prior to calibration. The temperature range of the furnace - from ambient to 1000°C - enables all types of SPRTs to be annealed.

One of the duties of a calibration laboratory manager is to ensure that the SPRTs used are fully annealed and still within specification. Merely using the thermometers within the laboratory will cause work-hardening in the platinum coil of the SPRT. Therefore, regular high-temperature annealing is required to ensure the SPRTs are in an ideal condition. Our annealing furnaces can help you calibrate your temperature sensors.

In 1990, the then-new temperature scale, ITS-90, specified the use of SPRTs up to the Silver point (961.78°C). At these temperatures, quartz is very porous, and in reducing atmospheres the SPRTs can quickly become contaminated.

The Isotech Annealing Furnace for sale here offers a safe solution for those seeking high-temperature annealing for SPRTs up to 1000°C.

To prevent contamination at high temperatures, a constant flux of pre-heated air passes the SPRTs being annealed.

A comprehensive handbook accompanies the Annealing Furnace.

The Annealing Furnace for sale here is installed simply and requires no maintenance.
414 Annealing Furnace
414 Data Sheet 414 Product Manual