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7-2 Specifications
09-04-02
DaqTemp User’s Manual
Common Mode Rejection: 86 dB, DC to 60 Hz for gains < =8; >100 dB for gains > =16
Maximum Input Voltage: ±11V relative to analog common
Over-Voltage Protection: ±35V
Ranges: Software or sequencer selectable on a per-channel basis, from 156mV FS to 10V FS
Crosstalk: 100 dB DC to 60 Hz; 86 dB @10 kHz
Thermocouple Inputs
Channels: 7 or 14 differential TC/mV inputs
TC types: J, K, S, T, E, B R, N
Input Voltage Range: +/- 100mV
Input Impedance: 40M Ohm
Input Bandwidth: 4 Hz
Input Bias Current: 10 nA typ
CMRR: 100dB typ
Maximum Working Voltage (Signal + Common Mode): ±10V
Over Voltage Protection: +/- 40V
Voltage Accuracy: +/- (0.2% of rdg + 50uV)
TC Accuracy: See table below. Valid for one year, 18 deg C to 28 deg C.
Minimum TC resolution: 0.1 deg C for all TC types
TC Accuracy at Measurement Temperature in °C (±°C)
Type Min Max -100 0 100 300 500 700 900 1100 1400
J
-200 760 0.6 0.5 0.5 0.6 0.7 0.7 — — —
K
-200 1200 0.7 0.6 0.6 0.7 0.8 0.8 0.9 1.0 —
T
-2004000.70.60.60.6—————
E
-2706500.60.50.50.50.6————
S
-50 1768 — 2.3 1.8 1.5 1.5 1.4 1.5 1.6 1.6
R
-50 1768 — 2.3 1.6 1.5 1.4 1.4 1.3 1.4 1.5
B
50 1780 — — — 3.7 2.4 2.1 1.8 1.7 1.5
N28
-2704000.90.70.70.7—————
N14
0 1300 — 0.7 0.7 0.7 0.8 0.8 0.9 1.0 —
Accuracy conditions:
•
Data is based on the use of a calibrated DaqTemp PCI Board
•
The table reflects total system absolute accuracy, including accuracy of the CJC and DaqTemp PCI Board
•
Excludes possible error from thermocouples
•
Excludes noise
•
V
CM
= 0