Product Overview
The Honeywell HEL-700 Series Thin Film Platinum RTDs are designed for critical temperature monitoring and control in industrial applications. These sensors offer a linear change in resistance versus temperature, providing high linearity, stability, accuracy, and a wide temperature range within a compact, fast-response package. They are ideal 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. Manufactured with a thin layer of platinum on an alumina substrate, they are laser-trimmed for precise interchangeability. Applications include HVAC, process control, motor windings, battery packs, ovens, autoclaves, aircraft, and space vehicles.
Product Attributes
- Brand: Honeywell
- Product Series: HEL-700 Series
- Sensing Technology: Thin Film Platinum RTD (Resistance Temperature Detector)
- Substrate Material: Alumina
- Leadwire Insulation Options: TFE Teflon, Fiberglass
- Case Material: Ceramic
- Leadwire Material: Nickel-coated stranded copper
- Potting Options: Epoxy (Teflon), Ceramic (Fiberglass)
Technical Specifications
| Characteristic | Condition | Parameter | Value (1000 ) | Value (100 ) |
|---|---|---|---|---|
| Alpha () | 0 C | //C | 0.00375 | 0.00385 (DIN Standard) |
| Temperature Range | TFE Teflon | C [F] | -70 C to 260 C [-94 F to 500 F] | |
| Temperature Range | Fiberglass | C [F] | -75 C to 540 C [-100 F to 1000 F] | |
| Temperature Accuracy (Standard Trim 0.2%) | R0 0.2% trim | C or % of temp. | 0.5 C or 0.8% of temperature, whichever is greater | |
| R0 0.1% trim (Optional) | C or % of temp. | 0.3 C or 0.6% of temperature, whichever is greater | ||
| Base Resistance & Interchangeability (R0 R0) | Standard Trim (0.2%) | 0 C | 1000 2 | 100 0.2 |
| Optional Trim (0.1%) | 0 C | 1000 1 | 100 0.1 | |
| 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 (0.086 in O.D.) | <0.5 s | |
| Still Water | s (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; C/5 years | <0.25 C/year; 0.05 C/5 years | |
| Self Heating | - | mW/C typ. (0.086 in O.D.) | <15 mW/C | |
| Insulation Resistance | 50 Vdc at 25 C | M | >50 M | |
| Construction/Material | Case | - | High purity alumina | |
| Construction/Material | Teflon-insulated leads | - | Nickel-coated stranded copper, epoxy potting | |
| Construction/Material | Fiberglass-insulated leads | - | Nickel-coated stranded copper, ceramic potting | |
| Models | Leadwire Insulation, Gauge, Wires | - | e.g., HEL-705 (TFE Teflon, 28 ga, 2-wire) | e.g., HEL-707 (Fiberglass, 28 ga, 2-wire) |
| Models | Leadwire Insulation, Gauge, Wires | - | e.g., HEL-711 (TFE Teflon, 28 ga, 3-wire) | e.g., HEL-712 (Fiberglass, 28 ga, 3-wire) |
| Models | Leadwire Insulation, Gauge, Wires | - | e.g., HEL-716 (TFE Teflon, 24 ga, 3-wire) | e.g., HEL-717 (Fiberglass, 24 ga, 3-wire) |
| Leadwire Length | - | inches | e.g., 12 inches | |
| NIST Calibration | Report Options | - | C1 (at 0 C), C2 (at 0 C and 100 C), C3 (at 0 C, 100 C and 260 C) | |
| Dimensional Drawings | HEL-705 / HEL-707 | mm [in.] | 2.29 [0.086] (Sensor Diameter), 4.83 [0.187] (Element Width) | |
| Dimensional Drawings | HEL-711 / HEL-712 | mm [in.] | 2.29 [0.086] (Sensor Diameter), 6.35 [0.25] (Element Width) | |
| Dimensional Drawings | HEL-716 / HEL-717 | mm [in.] | 3.30 [0.13] (Sensor Diameter), 15.24 [0.60] (Element Width) | |
| Functional Behavior Formula | - | - | RT = R0(1 + AT + BT - 100CT + CT) | |
2504101957_Honeywell-HEL-705-U-0-12-C1_C17385812.pdf
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