Product Overview
The Honeywell HEL-700 Series Thin Film Platinum RTDs (Resistance Temperature Detectors) are engineered for precise temperature monitoring and control in demanding industrial environments. These sensors offer a linear relationship between resistance and temperature, delivering high accuracy, stability, and a wide operating temperature range within a compact, fast-response package. Designed for seamless integration, they are fully assembled and ready for use in probe assemblies, eliminating the need for fragile splices. Manufactured with a thin platinum layer on an alumina substrate and laser-trimmed for interchangeability, the HEL-700 Series provides reliable performance across diverse applications including HVAC, process control, medical autoclaves, and aerospace vehicles.
Product Attributes
- Brand: Honeywell
- Series: HEL-700 Series
- Construction: Thin film platinum deposited on alumina substrate
- Case Material: High purity alumina
- Leadwire Insulation: TFE Teflon or Fiberglass
- Leadwire Material: Nickel-coated stranded copper with epoxy or ceramic potting
Technical Specifications
| Characteristic | Condition | Parameter | Value (1000 ) | Value (100 ) |
|---|---|---|---|---|
| Alpha () | 0 C | //C | 0.00375 | 0.00385 (DIN Standard) |
| Temperature Range | TFE Teflon insulated | C [F] | -70 C to 260 C [-94 F to 500 F] | |
| Temperature Range | Fiberglass insulated | C [F] | -75 C to 540 C [-100 F to 1000 F] | |
| Temperature Accuracy | R0 0.2% trim (standard) | C or % of temperature | 0.5 C or 0.8% of temperature, whichever is greater | |
| R0 0.1% trim (optional) | C or % of temperature | 0.3 C or 0.6% of temperature, whichever is greater | ||
| Base Resistance & Interchangeability (R0 R0) | R0 0.2% trim (standard) at 0 C | 2 | - | |
| R0 0.1% trim (optional) at 0 C | 1 | - | ||
| Linearity | -40 C to 125 C | % of full scale | 0.1% | |
| Linearity | -75 C to 540 C | % of full scale | 2.0% | |
| Time Constant | Water at 3 ft/s | s for 0.086 in O.D. | <0.5 s | |
| Still Water | s for 0.086 in O.D. | <1.0 s | ||
| Operating Current | - | mA max. | 2 mA (1 mA recommended for minimal self-heating) | |
| Stability | Occupied environments | C /year | <0.25 C /year; 0.05 C /5 years | |
| Self Heating | - | mW/C typ. for 0.086 in O.D. | <15 mW/C | |
| Insulation Resistance | 50 Vdc at 25 C | M | >50 M | |
| Leadwire Configurations | TFE Teflon insulated | Gauge/Type | 28 AWG / 2-wire | 28 AWG / 2-wire |
| Leadwire Configurations | Fiberglass insulated | Gauge/Type | 28 AWG / 2-wire | 28 AWG / 2-wire |
| Available Models (Examples) | HEL-705 | TFE Teflon, 28 AWG, 2-wire | 1000 | 100 |
| Available Models (Examples) | HEL-707 | Fiberglass, 28 AWG, 2-wire | 1000 | 100 |
| Available Models (Examples) | HEL-711 | TFE Teflon, 28 AWG, 3-wire | 1000 | 100 |
| Available Models (Examples) | HEL-712 | Fiberglass, 28 AWG, 3-wire | 1000 | 100 |
| Available Models (Examples) | HEL-716 | TFE Teflon, 24 AWG, 3-wire | 1000 | 100 |
| Available Models (Examples) | HEL-717 | Fiberglass, 24 AWG, 3-wire | 1000 | 100 |
2504101957_Honeywell-HEL-705-U-0-36-00_C17475289.pdf
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