AM1760/1762

AM1760/1762

SKU: N/A

Secondary reference SPRT

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Description

Manufacturer: AccuMac

The AM1760 series Secondary SPRTs provides our customers with reliable secondary standards that can be used daily in their labs. These SPRTs feature an accuracy of <0.006°C at 0.01°C, a short term stability of <0.002°C and a very low drift rate of less than 0.004°C after 100 hours at 661°C. These SPRTs are both available at either 12 inches or 20 inches in length. The AM1760 is also available in a bended version.

The sensing element is designed to protect the platinum sensing wire from contamination at high temperatures, giving these SPRTs 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 the ITS-90 criteria for reference thermometers.

Technical information

Specification 1762 / 1760
Temperature Range -200°C to 670 °C
Nominal Resistance at 0°C 1762: 25 Ω 1762: 100 Ω
Long Term Drift at 0.01°C < 0.004 K at TPW after 100 hours at 661 °C
Short Term Stability < 0.002 K
Thermal Shock < 0.002 °C after 10 thermal cycles from mnimum to maximum temperature
Hysteresis ≤ 0.005 K
Self-heating 1762: 0.0015 °C at 1 mA current 1760: 0.0015 °C at 0.5 mA current
Response Time 9 seconds (for 63 % response to step change in water moving at 3ft/s)
Measurement Current 0.5mA oder 1 mA
Sensor Length 42 mm
Sheath Material Inconel
Insulation Resistance > 1000 MΩ at room temperature
Sheath Dimensions 1762-20 / 1760-20: Ø 6,35 mm x L 500 mm 1762-12 / 1760-12: Ø 6,35 mm x L 305 mm
External Leads Teflon insulated copper wire, 4 leads, 2 meters
Handle Dimensions / Handle Temperature Range Ø 15 mm x L 65 mm / -50 °C to 180 °C
Accredited calibration (optional) Accredited calibration according to ISO 17025

Additional information

  • Reliable SPRT for daily use
  • Rtpw Drift: <4mK after 100hrs at 661°C
  • Short-term stability: <0.002°C at 0.01°C
  • Temperature Range: -200°C to 670°C
  • Inconel™ sheath to withstand harsh environments
  • Fully meets the ITS-90 criteria for reference thermometers

Services

Art.-No. ISO-17025 Accredited Calibration
5001 Range: 0 °C to 500 °C Fixed points: triple point of water, freezin point of tin, freezing point of zinc
50020 Range: 0 °C bis 660 °C (without Indium) Fixed points: triple point of water, freezing point of tin, freezing point of zinc, freezing point of aluminium
50021 Range: 0 °C to 660 °C (with Indium) Fixed points: triple point of water, freezing point of indium, freezing point of tin, freezing point of zinc, freezing point of aluminium
5003 Range: -39 °C to 30 °C Fixed points: triple point of water, triple point of mercury, melting point of gallium
5004 Range: 0°C to -100°C Fixed points: triple point of water, triple point of mercury, -100 °C (U = 5 mK)
5005 Range: 0 °C to -196 °C Fixed points: triple point of water, triple point of mercury, triple point of argon, -196 °C (U = 15 mK)

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