AM1750 Secondary Reference PRT
AM1750 series Secondary Reference PRT provides our customers an affordable reference probe for precision temperature measurement and calibration in labs and fields. The PRT features accuracy of ±0.015°C at 0.01°C ; short term stability of ±0.007°C. Two different lengths of PRTs 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: ±0.015 °C at 0.01°C
- Long term drift: ±0.01 °C
- Short term stability: 0.007 °C
- Durable and shock resistance
- Temperature Coefficient 0.003925
- W(Ga)>=1.11807
- Inconeltm sheath
- Customized dimensions available
| SPECIFICATIONS | |
| Temperature Range | 1750-12: -200°C to 670°C 1750-20: -200°C to 670°C |
|---|---|
| Resistance at 0 °C | Nominal 100 Ω |
| Temperature Coefficient | 0.003925 Ω/ Ω/°C |
| Accuracy | ±0.025°C at -196 °C ±0.015°C at 0.01 °C ±0.035°C at 420 °C ±0.05°C at 660 °C |
| Drift | ±0.01°C at 0 °C after 100 hours at 660 °C |
| Short Term Stability | ±0.007°C |
| Thermal Shock | ±0.005°C after 10 times thermal cycles from minimum to maximum temperatures |
| Hysteresis | <=0.005°C |
| Self-heating | 50 mW/°C |
| 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 | 32 mm |
| Sensor Location | 5 mm from tip |
| Insulation Resistance | 1000 MΩ at room temperature |
| Sheath Material | Inconeltm |
| Dimension | 1750-12: 0.25 inch X 12 inch (6.35 mm X 305 mm) 1750-20: 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 | 1750-12-T, PRT with NIST traceable calibration and data 1750-20-T, PRT with NIST traceable calibration and data NVLAP – Accredited Calibrations available per request |
| Model | Description |
|---|---|
| 9001 | Carrying Case for 1750-12 |
| 9002 | Carrying Case for 1750-20 |
AM1750 brochure (PDF Download 468Kb)
