Service manual

Introduction and Specifications
Specifications 1
1-17
Temperature
Temperature Readout
[1] [2] [3]
Typical Equivalent Temperature Measurement Uncertainty
[12]
Resistance Range
Absolute Resistance
Measurement Uncertainty
365 day Tcal ±1 °C
[4]
±(ppm Reading + mΩ)
[11]
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
-200 5 0.0085
25 Ω PRT/SPRT
0 25 0.0035
25 Ω PRT/SPRT
660 84 0.0025
100 Ω PRT/SPRT
-200 20 0.0035
100 Ω PRT/SPRT
0 100 0.0025
100 Ω PRT/SPRT
232 185 0.0020
200 - 1999.900 00 Ω
7.5 + 0.5
100 Ω PRT/SPRT
400 250 0.0025
99% Confidence Level
0 - 199.990 000 Ω
9.5 + 0.18
25 Ω PRT/SPRT
-200 5 0.0010
25 Ω PRT/SPRT
0 25 0.0040
25 Ω PRT/SPRT
660 84 0.0025
100 Ω PRT/SPRT
-200 20 0.0040
100 Ω PRT/SPRT
0 100 0.0025
100 Ω PRT/SPRT
232 185 0.0020
200 - 1999.900 00 Ω
9.5 + 0.6
100 Ω PRT/SPRT
400 250 0.0025
Temperature Readout (Secondary Specifications)
[1] [2] [3]
Resistance Measurement Uncertainty
Temp Coeff. ± ppm Reading/°C
Resistance Range
Transfer Uncertainty
20 Minute ±1 °C
±(ppm Reading + mΩ)
[11]
2-Wire
Adder
(Ω)
3-Wire
Adder
(Ω)
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
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