Thin Film Platinum RTDs
HEL-700 Series
DatasheetThin Film Platinum RTDs
The HEL-700 Series Thin Film Platinum RTDs (Resistance Temperature Detectors) are designed to monitor or control critical
temperatures in industrial applications. They provide a linear change in resistance versus temperature, combining high
linearity, stability, accuracy, and wide temperature range in a small, fast-response package.
The HEL-700 Series is designed to measure temperatures from -75 C to 540 C [-100 F to 1000 F] with high accuracy.
These fully-assembled elements are ready-to-use in probe assemblies, without the need for fragile splices to extension
leads.
These products are manufactured using a thin layer of platinum deposited on an alumina substrate and are laser trimmed
to a resistance interchangeability of a standard 0.2% (0.5 C accuracy) or optional 0.1% (0.3 C accuracy). The sensor
chip is then glassed, wired and potted or ceramic fired to result in a cylindrical alumina package with either TFE Teflon - or
fiberglass-insulated lead wires.
Key Features
Pote ntial A pplic ations
W ide temperature range
Temperature sensing for monitoring, compensation and regulation in:
Interchangeable
InduStrIaL
Accurate
HVAC equipment
Linear resistance vs temperature
Instrument and probe assemblies
Fast response
Process control
Laser trimmed
Motor windings and bearings
Ceramic case material
Battery packs
TFE Teflon or fiberglass leadwires
Environmental chambers
Multiple small sizes
Ovens and kilns
Ready-to-use, fully assembled elements
Drill holes in large objects
MEdICaL
Autoclaves
aErOSP aCE/dEFEnSE
Aircraft
Space vehicles
Wide temperature range interCHangeaBLe aCCurate
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