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 RTDs offer a linear change in resistance relative to temperature, delivering high linearity, stability, accuracy, and a wide operating temperature range within a compact, fast-response package. Designed for temperatures from -75 C to 540 C [-100 F to 1000 F], the HEL-700 Series features fully assembled, ready-to-use elements that eliminate the need for fragile splices. Manufactured using a thin platinum layer on an alumina substrate and laser-trimmed for precise resistance interchangeability, these sensors are glassed, wired, and potted or ceramic fired into a cylindrical alumina package with either TFE Teflon- or fiberglass-insulated lead wires. Key advantages include interchangeability, accuracy, linearity, fast response, and a ceramic case material.
Product Attributes
- Brand: Honeywell
- Series: HEL-700
- Sensing Technology: Thin Film Platinum RTD
- Substrate Material: Alumina
- Case Material: Ceramic
- Leadwire Insulation: TFE Teflon or Fiberglass
- Construction: Laser trimmed, glassed, wired, potted or ceramic fired
Technical Specifications
| Characteristic | Condition | Parameter | Value |
|---|---|---|---|
| Alpha () | R0 = 100 | 0 C | 0.00385 //C |
| Alpha () | R0 = 1000 | 0 C | 0.00375 //C |
| Temperature Range | TFE Teflon insulated | -70 C to 260 C [-94 F to 500 F] | |
| Temperature Range | Fiberglass insulated | -75 C to 540 C [-100 F to 1000 F] | |
| Temperature Accuracy | R0 0.2% trim (standard) | 0.5 C or 0.8% of temperature, whichever is greater | |
| Temperature Accuracy | R0 0.1% trim (optional) | 0.3 C or 0.6% of temperature, whichever is greater | |
| Base Resistance (R0) & Interchangeability (R0) | R0 0.2% trim (standard) | 0 C, 1000 | 2 |
| Base Resistance (R0) & Interchangeability (R0) | R0 0.1% trim (optional) | 0 C, 1000 | 1 |
| Linearity | -40 C to 125 C | 0.1% of full scale | |
| Linearity | -75 C to 540 C | 2.0% of full scale | |
| Time Constant | Water at 3 ft/s | 0.086 in O.D. | <0.5 s |
| Time Constant | Still water | 0.086 in O.D. | <1.0 s |
| Operating Current | 2 mA max. (1 mA recommended) | ||
| Stability | Occupied environments | <0.25 C /year; 0.05 C /5 years | |
| Self Heating | 0.086 in O.D. | <15 mW/C typ. | |
| Insulation Resistance | 50 Vdc at 25 C | >50 M | |
| Leadwire Material | TFE Teflon insulated | Nickel-coated stranded copper, epoxy potting | |
| Leadwire Material | Fiberglass insulated | Nickel-coated stranded copper, ceramic potting | |
| Models | TFE Teflon insulated | 2-wire | HEL-705, HEL-711, HEL-716 |
| Models | Fiberglass insulated | 2-wire | HEL-707, HEL-712, HEL-717 |
| Leadwire Gauge | TFE Teflon / Fiberglass | 28 gauge | HEL-705, HEL-707, HEL-711, HEL-712 |
| Leadwire Gauge | TFE Teflon / Fiberglass | 24 gauge | HEL-716, HEL-717 |
| Leadwire Configuration | 2-wire | HEL-705, HEL-707 | |
| Leadwire Configuration | 3-wire | HEL-711, HEL-712, HEL-716, HEL-717 |
Potential Applications
- 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
2410121847_Honeywell-HEL-705-U-1-12-00_C428570.pdf
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