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Placing The Thermo-couples
The following illustrations from the Taylor Instrument Compan...

Calibration Of Pyrometer With Common Salt
An easy and convenient method for standardization and one whi...

Pyrometers
Armor plate makers sometimes use the copper ball or Siemens' ...

Pyrometers For Molten Metal
Pyrometers for molten metal are connected to portable thermoc...

Hints For Tool Steel Users
Do not hesitate to ask for information from the maker as to t...

Fatigue Tests
It has been known for fifty years that a beam or rod would fa...

The Modern Hardening Room
A hardening room of today means a very different place from ...

Drop Forging Dies
The kind of steel used in the die of course influences the he...

Open Hearth Process
The open hearth furnace consists of a big brick room with a l...

Plant For Forging Rifle Barrels
The forging of rifle barrels in large quantities and heat-tre...

Leeds And Northrup Optical Pyrometer
The principles of this very popular method of measuring tempe...

Critical Points
One of the most important means of investigating the properti...

Hardening High-speed Steels
We will now take up the matter of hardening high-speed steels...

Refining The Grain
This is remedied by reheating the piece to a temperature slig...

The Quenching Tank
The quenching tank is an important feature of apparatus in c...

Preventing Decarbonization Of Tool Steel
It is especially important to prevent decarbonization in such...

Crankshaft
The crankshaft was the most highly stressed part of the entir...

Vanadium
Vanadium has a very marked effect upon alloy steels rich in c...

Oil-hardening Steel
Heat slowly and uniformly to 1,450 deg.F. and forge thorough...

Annealing To Relieve Internal Stresses
Work quenched from a high temperature and not afterward tempe...



Correction By Zero Adjustment






Category: PYROMETRY AND PYROMETERS

Many pyrometers are supplied with
a zero adjuster, by means of which the pointer can be set to any
actual cold-junction temperature. If the cold junction of the
thermo-couple is in a temperature of 100 deg.F., the pointer can be
set to this point on the scale, and the readings of the instrument
will be correct.





Next: Compensating Leads

Previous: Correction For Cold-junction Errors



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