Measurement Computing DBK Part 2 - Manual (Page 204)

pg. 16, DBK100 Series 907994 DBK Option Cards and Modules
Power Requirements
DBK100/D: 10 mA from +15V, 10 mA from -15V, 300 mW total
DBK100/T: 10 mA from +15V, 10 mA from -15V, 300 mW total
DBK101: 40 mA from +15V, 40 mA from -15V, 300 mA from +5V, 2700 mW total
Input Impedance: 4M Ohm (differential) in parallel with 400 pF
Input Bandwidth: 1 kHz
Minimum Resolution: 0.1°C for all TC types
Measurement Temperature in °C (�°C)
TC Accuracy at Measurement Temperature in °C (±°C)
Type Min Max -100 0 100 300 500 700 900 1100 1400
J -200 760 1.2 1.0 1.0 1.2 1.4 1.4 -- -- --
K -200 1200 1.4 1.2 1.2 1.4 1.6 1.6 1.8 2.0 --
T -200 400 1.4 1.2 1.2 1.2 -- -- -- -- --
E -270 650 1.2 1.0 1.0 1.0 1.2 -- -- -- --
S -50 1768 -- 4.6 3.6 3.0 3.0 2.8 3.0 3.2 3.2
R -50 1768 -- 4.6 3.2 3.0 2.8 2.8 2.6 2.8 3.0
B 50 1780 -- -- -- 7.4 4.8 4.2 3.6 3.4 3.0
N28 -270 400 1.8 1.4 1.4 1.4 -- -- -- -- --
N14 0 1300 -- 1.4 1.4 1.4 1.6 1.6 1.8 2.0 --
TC Accuracy: Valid for one year 25°C ambient; see table above.
Accuracy conditions:
o
Exclusive of thermocouple errors
o
Exclusive of noise
o
VCM = 0
o
25°C ambient temperature, stabilized for 1 hour
For applications where higher common-mode TC measurements are required, DaqBook systems offer
high-isolation options up to 500V. These options would reside at the DaqBook, and require running the
TC wire from the engine to the passenger compartment.
TC Accuracy* at
Operating Temperature:
DBK100/D & DBK100/T: -40° to +125°C
DBK101: -30° to +70°C
Storage Temperature: -40° to +125°C
Relative Humidity: 0 to 95% non-condensing
DBK100/D & DBK100/T: Water resistant
Temperature Coefficient of Accuracy for Type T TC: ±0.05°C for every °C away from 25°C
Channel-to-Channel Crosstalk: -90 dB typ (0 to 100 Hz)
DC CMRR: -80 dB typ
AC CMRR: -80 dB typ (0 to 60 Hz)
Maximum Common Mode Voltage: ±5V
Over-Voltage Protection: ±40V