Agilent Technologies Computer Hardware U2802A User Manual

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Product Specifications 4
Agilent U2802A 31-Channel Thermocouple Input User’s Guide 49
Product Characteristics
GENERAL CHARACTERISTICS
Number of channels 31 differential and 1 CJC
Input voltage range for voltage mode ±10 V (signal + common mode)
Input voltage (thermocouple mode) ±100 mV
Sampling rate for thermocouple mode 10 kSa/s total for all channels
Sampling rate for overall module 500 kSa/s
Thermocouple types J, K, R, S, T, N, E and B
INPUT SPECIFICATIONS
Accuracy (thermocouple mode)
Overall gain error
Overall offset error
Nonlinearity
0.06% (23 °C ± 5 °C)
15 µV (without zeroing) (23 °C ± 5 °C)
6 µV (with zeroing)
< 0.005% of Full Scale Range
System noise (rms)
Gain (x1)
Gain (x100)
100 µVrms
5 µVrms
Common mode rejection ratio (60 Hz)
Voltage mode
Thermocouple mode
> 60 dB
> 80 dB
Cold junction accuracy ±1.0 °C typical (23 °C ± 5°C)
±1.5 °C typical (0 °C to 18 °C, 28 °C to 55 °C)
INPUT CHARACTERISTICS
Bandwidth (voltage mode) > 500 kHz
Bandwidth (thermocouple mode) 4.0 Hz
U2802A_UG.book Page 49 Tuesday, January 8, 2008 10:24 AM

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