Product Overview
The Honeywell HEL-700 Series Thin Film Platinum RTDs (Resistance Temperature Detectors) are designed for critical temperature monitoring and control in industrial applications. These RTDs offer a linear change in resistance versus temperature, providing high linearity, stability, accuracy, and a wide temperature range within a small, fast-response package. They are suitable for measuring temperatures from -75 C to 540 C [-100 F to 1000 F]. The fully-assembled, ready-to-use elements eliminate the need for fragile splices to extension leads. Manufactured with a thin layer of platinum deposited on an alumina substrate and laser-trimmed, they achieve standard interchangeability of 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 into a cylindrical alumina package with either TFE Teflon- or fiberglass-insulated lead wires.
Product Attributes
- Brand: Honeywell
- Product Series: HEL-700 Series
- Sensing Technology: Thin Film Platinum RTD
- Substrate Material: Alumina
- Platinum Deposition: Thin layer
- Trimming Method: Laser trimmed
- Packaging: Cylindrical alumina package
- Leadwire Insulation Options: TFE Teflon, Fiberglass
- Leadwire Material: Nickel-coated stranded copper
- Potting/Firing: Epoxy potting (Teflon), Ceramic firing (Fiberglass)
Technical Specifications
| Characteristic | Condition | Parameter | 1000 RTD | 100 RTD |
|---|---|---|---|---|
| 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 | R 0.2% trim (standard) | C or % of Temp | 0.5 C or 0.8% of temperature, whichever is greater | |
| Temperature Accuracy | R 0.1% trim (optional) | C or % of Temp | 0.3 C or 0.6% of temperature, whichever is greater | |
| Base Resistance & Interchangeability (R R) | 0 C, 0.2% trim (standard) | 2 | N/A | |
| Base Resistance & Interchangeability (R R) | 0 C, 0.1% trim (optional) | 1 | N/A | |
| 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 | <1.0 s |
| Operating Current | Max. | mA | 2 mA | |
| Stability | Occupied environments | C /year; C /5 years | <0.25 C /year; 0.05 C /5 years | |
| Self Heating | Typ. for 0.086 in O.D. | mW/C | <15 mW/C | |
| Insulation Resistance | 50 Vdc at 25 C | M | >50 M | |
| Construction | Case Material | - | High purity alumina | |
| Construction | Teflon-insulated leads | - | Nickel-coated stranded copper, epoxy potting | |
| Construction | Fiberglass-insulated leads | - | Nickel-coated stranded copper, ceramic potting | |
| Models | Leadwire Insulation & Gauge | Wire Count | Base Resistance & Alpha | Leadwire Length |
| HEL-705 | TFE Teflon, 28 gauge | 2-wire | 1000 : 0.00375; 100 : 0.00385 | 12 inches (standard) |
| HEL-707 | Fiberglass, 28 gauge | 2-wire | 1000 : 0.00375; 100 : 0.00385 | 12 inches (standard) |
| HEL-711 | TFE Teflon, 28 gauge | 3-wire | 1000 : 0.00375; 100 : 0.00385 | 12 inches (standard) |
| HEL-712 | Fiberglass, 28 gauge | 3-wire | 1000 : 0.00375; 100 : 0.00385 | 12 inches (standard) |
| HEL-716 | TFE Teflon, 24 gauge | 3-wire | 1000 : 0.00375; 100 : 0.00385 | 12 inches (standard) |
| HEL-717 | Fiberglass, 24 gauge | 3-wire | 1000 : 0.00375; 100 : 0.00385 | 12 inches (standard) |
| NIST Calibration | Report Options | - | C1 (at 0 C), C2 (at 0 C and 100 C), C3 (at 0 C, 100 C and 260 C) | |
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
2403111658_Honeywell-HEL-705-U-1-12-C2_C17669893.pdf
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