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Overview

HEL-700 Series temperature sensor, platinum RTD, ceramic case, leadwires.

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.

HEL-705-T-1-12-00 RTD Sensors - Honeywell


Technical Specifications

Product HEL-705-T-1-12-00
Termination Leadwires
Termination Material 28 Gauge, nickel-coated stranded copper, Teflon insulated
Availability Global
Sensor Type 100 Ohm platinum RTD
Temperature Coefficient 0.00385 Ohm/Ohm/°C DIN specification
Package Type Ceramic case
Temperature Sensing Range -70 °C to 260 °C [-94 °F to 500 °F]
Base Resistance and Interchangeability 1000 Ohm ±1 Ohm at 0 °C
Linearity (% of Full Scale) ±0.1% typ. -40 °C to 125 °C [-40 °F to 257 °F]; ±2.0% max. -75 °C to 540 °C [-167 °F to 1004 °F]
Time Constant in Water at 0.914 m/s [3 ft/s] <0.5 s
Time Constant on Metal Surface N/A
Stability >0,25 °C per year; 0,05 °C per five years in occupied environment
Supply Voltage Not applicable
Supply Current 1 mA typ., 2 mA max.
Self Heating <15 mW/°C typ.
Insulation Resistance 50 MOhm at 50 Vdc, 25 °C [77 °F]
Series Name HEL-700
Construction Alumina case: epoxy potting (Teflon leads); ceramic potting (Fiberglass leads)
UNSPSC Code 41112225
UNSPSC Commodity 41112225 Resistance temperature detector RTD

Technical Specifications

Product HEL-705-T-1-12-00
Termination Leadwires
Termination Material 28 Gauge, nickel-coated stranded copper, Teflon insulated
Availability Global
Sensor Type 100 Ohm platinum RTD
Temperature Coefficient 0.00385 Ohm/Ohm/°C DIN specification
Package Type Ceramic case
Temperature Sensing Range -70 °C to 260 °C [-94 °F to 500 °F]
Base Resistance and Interchangeability 1000 Ohm ±1 Ohm at 0 °C
Linearity (% of Full Scale) ±0.1% typ. -40 °C to 125 °C [-40 °F to 257 °F]; ±2.0% max. -75 °C to 540 °C [-167 °F to 1004 °F]
Time Constant in Water at 0.914 m/s [3 ft/s] <0.5 s
Time Constant on Metal Surface N/A
Stability >0,25 °C per year; 0,05 °C per five years in occupied environment
Supply Voltage Not applicable
Supply Current 1 mA typ., 2 mA max.
Self Heating <15 mW/°C typ.
Insulation Resistance 50 MOhm at 50 Vdc, 25 °C [77 °F]
Series Name HEL-700
Construction Alumina case: epoxy potting (Teflon leads); ceramic potting (Fiberglass leads)
UNSPSC Code 41112225
UNSPSC Commodity 41112225 Resistance temperature detector RTD

Documents

TITLE DOCUMENT TYPE LANGUAGE SIZE
Temperature Sensors Line Guide Product Line Guide English 290KB
Thermal Sensors Product Range Guide English 12MB
Platinum RTDs Temperature Sensors Circuits and Switches Technical Information English 125KB
HEL-700 Series Thin Film Platinum RTDs Datasheet English 805KB
Platinum RTDs Temperature Sensors Heat Conduction Equation and RTD Self Heating Technical Information English 126KB
Platinum RTDs Temperature Sensors Hot Film Anemometry Technical Information English 127KB
Platinum RTDs Temperature Sensors Resistance and Accuracy Tables Technical Information English 93KB

Product Features

  • Wide temperature range
  • Interchangeable
  • Accurate
  • Linear resistance vs temperature
  • Fast response
  • Laser trimmed
  • Ceramic case material
  • TFE Teflon® or fiberglass leadwires
  • Multiple small sizes
  • Ready-to-use, fully assembled elements

Applications

Temperature sensing for monitoring, compensation and regulation in:

Industrial:

  • HVAC equipment
  • Instrument and probe assemblies
  • Process control
  • Motor windings and bearings
  • Battery packs
  • Environmental chambers
  • Ovens and kilns
  • Drill holes in large objects

Medical:

  • Autoclaves

Aerospace/Defense:

  • Aircraft
  • Space vehicles

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