Product Specifications
4
Agilent U2802A 31-Channel Thermocouple Input User’s Guide
41
Product Characteristics
GENERAL CHARACTERISTICS
Number of channels
31 differential and 1 CJC
Input voltage range for voltage mode
±10 V ( 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 41 Friday, November 25, 2011 10:57 AM
