TEMPERATURE LABELS 101

Reversible Temperature Label - 7 Level Horizontal

• Reversible. Liquid Crystal Style
• Low Cost; approx. $2.00 per label
• Easy to Use - Green indicates actual temp
• Small footprint
• Self Adhesive - Fast Response
• Range - 30°C to 120°C -30°F to 248°F
• Accuracy: +/- 1°C
• Shelf Life 18-24 months

How They Work

The molecules in the liquid crystal thermometer are made of cholesterol, and are called cholesteric liquid crystals. The molecules are rod-shaped. The rods form layers in the liquid crystal, the rods in adjacent layers running in a slightly different direction from those in the layer above or below. From one layer to the next the rods form a structure like the stairs of a spiral staircase. The spiral staircase rises through some distance before the molecules twist around parallel to their original direction. When this distance equals half-a-wavelength of RED/BROWN, the liquid crystal will reflect RED/BROWN. When the distance is shorter, matching half a wavelength of blue light, the crystal will reflect blue. (The wavelength of light is measured in the liquid crystal and is shorter than the wavelength in air.)

The liquid crystals are usually encapsulated, packaged in microscopic plastic spheres.
This allows the material to be cut. they are also thermally rugged which allows them to
be laminated to protect them from hard handling in a high temperature laminating
machine.

How To Read The Label

BLUE bar highlighted is below the actual temperature reading.

GREEN bar highlighted is the actual temperature reading

RED/BROWN bar highlighted is above the actual temperature reading.

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Non-Reversible / Irreversible Temperature Labels

• Non-Reversible or Irreversible
• Low Cost - (approx. cost $2 per label)
• Easy to Use
• Small footprint / profile
• Self Adhesive - Fast Response
• Range 31°C - 290°C / 89°F to 554°F
• Accuracy - +/- 1%
• Shelf Life 12-18 months

How They Work

The indicators white thermographic ink area (square) is manufactured and calibarated to a specific temperature level that turns irreversible (permanent) black when its rated temperature is exceeded. Accuracy 1%. Changes occur in less than one second.

The thermographic ink area is hermetically sealed against moisture, oil, grease, fuels, solvents, water and steam.

To Apply:
Pull the flexible, self-adhesive label from backing paper. Place on cleaned surface for maximum contact and adhesion. That surface temperature is now monitored for hours, days, months or even years, as long as the indicator is attached.

TipTemp Labels are the most economical, dependable and easily applied temperature recording method. No equipment. No special skills. Apply and forget until you inspect.

How To Read The Label

Change from White To Black indicates a temperature change has occured.

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