AccuMac AM1850 - Manual (Page 5)

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 ΔR(0.01°C ) <0.002 °C/100 hours at 500°C
ΔR(0.01°C ) <0.008 °C/year
1860 ΔR(0.01°C ) <0.003 °C/100 hours at 670°C
ΔR(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