AM1860/1850 Standard Platinum Resistance Thermometer
User’s Guide
4/10
2 Specifications
2.1 Specifications
Temperature Range
1850: -200°C to 500°C
1860: -200°C to 670°C
R
tpw
Nominal 25 Ω
or nominal 100
Ω
Resistance Ratio
W(Ga)>=1.11807
W(Hg)<=0.844235
Drift at 0.01°C*
1850 Δ
R(0.01°C ) <0.002 °C/100 hours at 500°C
Δ
R(0.01°C ) <0.008 °C/year
1860 Δ
R(0.01°C ) <0.003 °C/100 hours at 670°C
Δ
R(0.01°C ) <0.01 °C/year
Repeatability
±0.0015 °C
Thermal Shock
±0.0015 °C after 10 times thermal cycles from minimum to
maximum temperatures
Self-heating
0.0015 °C at 1 mA current
Measurement Current
1 mA
Sensor Length
42 mm
Insulation Resistance
>1000 MΩ at room temperature
Sheath Material
Inconel
TM
Dimension
1850: 6.35 mm (OD) X 480 mm (L)
1860: 6.35 mm (OD) X 500 mm (L)
External Leads
Insulated copper wire, 4 leads, 2.5 meters
Termination
Gold-plated Spade
Handle Dimension
21mm (OD) X 80 mm (L)
Calibration
Not included
