Fluke 8508A - Temperature

Specifications
Electrical Measurement Specifications
5
Ratio Accuracy
Range to Range...................................................... Apply an RSS summation of Net Front Input and Rear Input Accuracy
[17]
Within Range .......................................................... Using the 24 hour or 20 minute Transfer Uncertainty specifications as
appropriate, apply an RSS summation of specified accuracy of the Front
Input signal and the specified accuracy of the Rear Input signal
[17]
Settling Time ......................................................... Up to 200 kΩ range generally the same as DC Voltage Filter In but
depends on external connections
Temperature
Temperature Readout
[1] [2] [3]
Resistance Range
Absolute Resistance
Measurement Uncertainty
365 day Tcal ±1 °C
[4]
±(ppm Reading + mΩ)
[11]
Typical Equivalent Temperature Measurement Uncertainty
[12]
Probe Type
Nominal
Temperature
(°C)
Resistance
(Ω)
Accuracy
± (°C)
95% Confidence Level
0 - 199.990 000 Ω
7.5 + 0.14
25 Ω PRT/SPRT
25 Ω PRT/SPRT
25 Ω PRT/SPRT
100 Ω PRT/SPRT
100 Ω PRT/SPRT
100 Ω PRT/SPRT
-200
0
660
-200
0
232
5
25
84
20
100
185
0.0016
0.0033
0.0096
0.0007
0.0023
0.0042
200 - 1999.900 00 Ω
7.5 + 0.5
100 Ω PRT/SPRT
400 250 0.0069
99% Confidence Level
0 - 199.990 000 Ω
9.5 + 0.18
25 Ω PRT/SPRT
25 Ω PRT/SPRT
25 Ω PRT/SPRT
100 Ω PRT/SPRT
100 Ω PRT/SPRT
100 Ω PRT/SPRT
-200
0
660
-200
0
232
5
25
84
20
100
185
0.0021
0.0042
0.0122
0.0009
0.0029
0.0053
200 - 1999.900 00 Ω
9.5 + 0.6
100 Ω PRT/SPRT
400 250 0.0086
Temperature Readout (Secondary Specifications)
[1] [2] [3]
Resistance Range
Resistance Measurement Uncertainty
Transfer Uncertainty
20 Minute ±1 °C
±(ppm Reading + mΩ)
[11]
2-Wire
Adder
(Ω)
3-Wire
Adder
(Ω)
Temp Coeff. ± ppm Reading/°C
15 °C - 30 °C
5 °C - 15 °C
30 °C - 40 °C
0 - 199.990 000
Ω
0.8 + 0.14 0.1 0.005 0.6 1.0
200 - 1999.900 00 Ω
0.2 + 0.5 0.1 0.005 0.5 0.8
Type ....................................................................... 4-wire current reversal resistance measurement with readout of
equivalent temperature. 2-wire and 3-wire selectable without current
reversal. Refer to Resistance specifications for additional details.
Temperature Range .............................................. -200 °C to 660 °C, readout also available in °F or K.
Linearization ......................................................... ITS-90 or Callendar van Dusen. Entry and storage of coefficients and
nominal resistance for up to 100 probes.
Current Source ..................................................... 1 mA
5-13