AM1760/1762 Secondary SPRT’s
AM1760 series Secondary Standard PRT provides our customers an affordable SPRT alternative for precision temperature measurement and calibration in labs and fields. This SPRT features accuracy of ±0.006°C at 0.01°C , short term stability of ±0.002°C and very low drift rate of less than 19 mK after 500 hours. Two different lengths of SPRTs are available at 12-inch and 20-inch. The sensing element is designed to protect the platinum sensing wire from contamination at high temperatures, giving the device a high level of stability and repeatability in performance. A uniquely designed support structure and filling material provides excellent balance between the hysteresis effect, mechanical shock and thermal shock performance. This high performance probe fully meets ITS-90 criteria for reference thermometers.
- Temperature range: -200 °C to 670 °C
- Accuracy: ±0.006°C at 0.01°C
- Long term drift: ±0.019°C
- Short term stability: 0.002 °C
- Temperature Coefficient 0.003925
- W(Ga)>=1.11807
- Customized dimensions available
| SPECIFICATIONS | |
| Temperature Range | -200°C to 670°C |
|---|---|
| Resistance at 0 °C | 1760 – Nominal 100 Ω 1762 – Nominal 25 Ω |
| Temperature Coefficient | 0.003925 Ω/ Ω/°C |
| Accuracy | ±0.007°C at -196 °C ±0.006°C at 0.01 °C ±0.015°C at 420 °C ±0.025°C at 660 °C |
| Drift* | ±0.004°C at 0 °C after 100 hours at 660 °C |
| Short Term Stability | ±0.002°C |
| Thermal Shock | ±0.002°C after 10 times thermal cycles from minimum to maximum temperatures |
| Self-heating | 0.0015 °C at 1 mA current |
| Response Time | 9 seconds for response to step change in water moving at 3 feet per second |
| Measurement Current | 0.5 mA or 1 mA |
| Sensor Length | 42 mm |
| Sensor Location | 5 mm from tip |
| Insulation Resistance | 1000 MΩ at room temperature |
| Sheath Material | Inconeltm |
| Dimension | 1760/1762-12: 0.25 inch X 12 inch (6.35 mm X 305 mm) 1760/1762-20: 0.25inch X 20 inch (6.35 mm X 500 mm) |
| External Leads | Teflontm –insulated copper wire, 4 leads, 2.5 meters |
| Handle Dimension | 15mm (OD) X 65 mm (L) |
| Handle Temperature Range** | -50°C to 180°C |
| Calibration Options | 1760/1762-12-T, Secondary SPRT with NIST traceable calibration and data 1760/1762-20-T, Secondary SPRT with NIST traceable calibration and data |
| Model | Description |
|---|---|
| 9001 | Wooden Carrying Case for 1760/1762-12 |
| 9002 | Wooden Carrying Case for 1760/1762-20 |
AM1760-1762 brochure (PDF Download 470Kb)
