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Annealing Furnace, Model 414
Isotech Annealing Furnace, Model 414
 

Product Code: 414
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Designed to pre-warm and anneal Standard Platinum Resistance Thermometers
Maintenance Free Use
Available with programmable controller with communications

The Annealing Furnace, model 414, 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 in the Laboratory are fully annealed and still within specification.

Just using the thermometers within the laboratory will cause work-hardening to take place within the platinum coil of the SPRT.

Therefore regular annealing is required to ensure the SPRTs are in an ideal condition

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 offers a safe solution for those who wish to anneal 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 Furnace

This Furnace is installed simply and requires no maintenance.

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Model 414
Temperature Range Ambient to 1000°C
Control 0.1°C Resolution
Furnace Depth 450mm
Diameter 50mm
Communications Included as standard
Power 110Vac 50/60Hz 3kw
or 230VAC 50-60Hz 3kw
with internal transformer option
Dimensions H 800mm
W 400mm
D 620mm
Weight 40kg

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