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Appendices
Specifications
A
A-5
Input Impedance
100 MΩ minimum in parallel with 150 pF maximum
Common Mode and Normal Mode Rejection
See Specifications, DC Voltage Inputs
Cross-Talk Rejection
Refer to Appendix D
Open Thermocouple Detect
Small ac signal injection and detection scheme before each measurement detects greater
than 1 to 4 kΩ as open. Performed on each channel unless defeated by computer
command.
RTD Inputs
Type
DIN/IEC 751, 100e Platinum (385)
IEC 751, Amendment 1, 100 e Platinum (IPTS-68)
RTD 4 Wire Accuracy* (±°C)
Temperature Resolution 18°C to 28°C 0°C to 60°C
(°C) Slow Fast 90 Day
Slow
1 Year
Slow
1 Year
Fast
1 Year
Slow
1 Year
Fast
-200.00 0.02 0.1 0.06 0.06 0.48 0.07 0.49
0.00 0.02 0.1 0.09 0.09 0.55 0.13 0.59
100.00 0.02 0.1 0.10 0.11 0.58 0.17 0.64
300.00 0.02 0.1 0.14 0.14 0.65 0.24 0.75
600.00 0.02 0.1 0.19 0.20 0.76 0.37 0.93
* Sensor inaccuracies are not included
IEC 751, Amendment 1, 100 e Platinum (ITS-90)
RTD 4 Wire Accuracy* (±°C)
Temperature Resolution 18°C to 28°C 0°C to 60°C
(°C) Slow Fast 90 Day
Slow
1 Year
Slow
1 Year
Fast
1 Year
Slow
1 Year
Fast
-200.00 0.02 0.1 0.06 0.06 0.48 0.07 0.49
0.00 0.02 0.1 0.09 0.09 0.55 0.13 0.59
100.00 0.02 0.1 0.13 0.13 0.60 0.19 0.67
300.00 0.02 0.1 0.17 0.18 0.69 0.28 0.79
600.00 0.02 0.1 0.30 0.31 0.87 0.48 1.04
* Sensor inaccuracies are not included