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Complete Calibration Of Pyrometers
For the complete calibration of a thermo-couple of unknown e...

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

Affinity Of Nickel Steel For Carbon
The carbon- and nickel-steel gears are carburized separately...

The Care Of Carburizing Compounds
Of all the opportunities for practicing economy in the heat-t...

Protective Screens For Furnaces
Workmen needlessly exposed to the flames, heat and glare from...

Non-shrinking Oil-hardening Steels
Certain steels have a very low rate of expansion and contract...

Bessemer Process
The bessemer process consists of charging molten pig iron int...

Process Of Carburizing
Carburizing imparts a shell of high-carbon content to a low-...

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

Case-hardening Treatments For Various Steels
Plain water, salt water and linseed oil are the three most co...

The Packing Department
In Fig. 56 is shown the packing pots where the work is packe...

Typical Oil-fired Furnaces
Several types of standard oil-fired furnaces are shown herew...

Effects Of Proper Annealing
Proper annealing of low-carbon steels causes a complete solu...

The Electric Process
The fourth method of manufacturing steel is by the electric f...

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

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

Tool Or Crucible Steel
Crucible steel can be annealed either in muffled furnace or b...

Brown Automatic Signaling Pyrometer
In large heat-treating plants it has been customary to mainta...

Phosphorus
PHOSPHORUS is an element (symbol P) which enters the metal fr...

Phosphorus
Phosphorus is one of the impurities in steel, and it has been...



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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