High Stability Reference Probes
Wide Temperature Ranges
High Stability Platinum Coil Elements

These industrial platinum resistance thermometers are ideal for field and lab use. Suitable for use as working standards in Dry Blocks and Liquid Baths or as high accuracy probes for our range of True Temperature Indicators.

All the thermometers are metal sheathed and both less fragile, and more affordable than the Isotech range of true Standard Platinum Resistance Thermometers that are used in laboratories and our found in our publication “Solutions for Primary and Secondary Laboratories”.

All the thermometers use handmade coil wound platinum sensing elements to give high accuracy and low drift. Isotech’s UKAS accredited lab can calibrate to the smallest of uncertainties.

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Useable Range -200°C to 670 °C
25.5 Ohm SPRT
Sensitivity:

• 0.1Ω / °C (25.5Ω)
• 0.4Ω / °C (100Ω)

Long term drift from 0.001°C / year depending on use

Models: 670SQ, 670SH, 670SL
Measuring Range: -200°C to 670°C
Nominal Resistance: 25.5Ω Ro or 100Ω Ro
Resistance Ratio: Wga>1.11807 as required by ITS-90

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Augstas stabilitātes platīna termometrs 909
Temperatūras diapazons: -200°C līdz 670 °C
R0 : 100 W ±0,05 W
Stabilitāte gadā: 0,01 W

Temperatūras diapazons/ Diametrs/ Garums/ kabeļa garums:
• 935-14-61: -50 °C līdz 250 °C / 4 mm / 300 mm/ 2 m
• 935-14-13: -196 °C līdz 250 °C / 6 mm / 350 mm/ 2 m
• 935-14-16: -100 °C līdz 450 °C / 6 mm / 450 mm/ 2 m
• 935-14-72: -50 °C līdz 670 °C / 6 mm / 375 mm/ 2 m
• 935-14-95(L): -200 °C līdz 165 °C/ 6 mm / 480 mm/ 2 m
• 935-14-95(H): -80 °C līdz 670 °C/ 6 mm / 480 mm/ 2 m
• 935-14-82: -50 °C līdz 250 °C/ 4 mm / 210 mm/ 1,5 m
• 935-14-85: -50 °C līdz 250 °C/ 6 mm / 420 mm/ 540 mm
• 935-14-98: -50 °C līdz 350 °C/ 4 mm / 300 mm/ 2 m
R0 : 100 W ±0,05 W
Stabilitāte gadā: 0,01 W
Rekomendējamā strāva: 1 mA
Garantija 24 mēn

Termometrs 909 apraksts Angļu valodā.pdf

Temperature Range:-50 to 250°C
Ro: 100Ω ±0.05Ω
Alpha: 0.003850 ±0.000005
Stability: 0.010 ohm/year

• Diameter: 4mm
• Length: 300mm
• Sensing Length: 6mm

• Lead Wires: 5' with 5-pin DIN

Calibration: A NIST Calibration Certificate can be provided at extra cost
Recommended Current: 1mA
Self-Heating Error at 1mA: 0.004°C

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