Standard Platinum Resistance Thermometers (SPRTs) are used to interpolate tempera-ture in the range from -189.3442°C to 660.323°C on the International Temperature Scale of 1990 (ITS-90). They are widely used as standard or reference thermometers to calibrate other thermometers and to measure temperature precisely in primary and secondary laboratories. AM1950 and AM1960 SPRTs are the crown jewels of AccuMac temperature probes. It takes decades of our scientific expertise and original craftsmanship to create these world class prod-ucts. They feature a very low drift rate.
To reach the best performance in stability and repeatability, the sensing element and sensor support are specially designed. To protect the platinum sensing wire from contamination at high temperature, all parts used in the thermometer are extremely cleaned before assembly. The assembly process is well controlled to protect the sensor from contamination. The gas mix-ture filled in the thermometer makes the sensor wire oxidation effect as low as possible. Every SPRT is fully tested for stability after manufactured. This world class probe meets ITS-90 crite-ria of standard thermometer fully with a very competitive pricing.
AM1950 has a temperature range from -200°C to 500°C. AM1960 covers range from -200°C to 670°C.
|Temperature Range||AM1950 ( –200°C to 500°C )|
|AM1960 ( –200°C to 670°C )|
|Resistance Ratio||W(Ga) ≥ 1.11807|
|W(Hg) ≤ 0.844235|
|Drift at TPW||AM1950 ΔR(TPW) <0.002°C/100hrs. At 500°C|
|AM1960 ΔR(TPW) <0.003°C/100hrs. At 670°C|
|Thermal Shock||±0.001°C after 10 times thermal cycles from minimum to maximum temperature.|
|Self-Heating||0.0015°C at 1mA Current|
|Measurement Current||1 mA|
|Insulation Resistance||>1,000MΩ at room temperature|
|Dimension||AM1950 – Ø 7mm. x 480mm. (Length)|
|AM1960 – Ø 7mm. x 500mm. (Length)|
|Recommended immersion Depth||AM1950 – at least 105mm. deep|
|AM1960 – at least 105mm. deep|
|External Leads||Insulated Copper Wire, 4-Wire , 2.5Meters.|
|Handle Dimension||21mm. X 80mm.|
|Carrying Case||Not included|
Order No. 5007 – NIST Traceable Certificate of Calibration ( –200°C to 670°C )
Order No. 9002 – Complementary Wooden Carrying Case.
AM8060 Dual-Channel Precision Thermometer Readout
AM8040 Single-Channel Precision Thermometer Readout