Description
The AM1850-25 is the 25 ohm version of the metal-sheathed AM1850, the classic SPRT resistance value for bridge-based measurement. AccuMac standard platinum resistance thermometers are reference sensors built to interpolate the ITS-90 temperature scale with very low drift. Each probe contains a high-purity platinum element whose resistance ratio is calibrated against fixed points or a higher-level standard. Paired with a precision bridge or thermometer readout, they serve as primary or secondary standards in calibration laboratories and as reference thermometers in baths and dry-block calibrators.
Key features
- High-purity platinum sensing element
- Low drift for use as a laboratory standard
- Designed for ITS-90 interpolation
- Nominal resistance options of 25 Ω or 100 Ω by model
- Suitable for baths and dry-block calibrators
Typical applications
- Primary and secondary temperature laboratories
- Reference thermometer for bath and dry-block calibration
- Calibration of working PRTs and thermometers
- Fixed-point and comparison measurements
Specifications
| Brand | AccuMac |
|---|---|
| Model | AM1850 |
| Order code | AM1850-25 |
| Product type | Standard platinum resistance thermometer (SPRT) |
| Nominal resistance | 25 Ω |
| Temperature range | -200 °C to 500 °C |
| Sheath | Metal |
| Sensor | Standard platinum resistance thermometer |
| Lower range limit | -200 °C |
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