National Instruments NI 9219 - Manual (Page 24)

NI 9219 Operating Instructions 24 ni.com
Cold-junction compensation
sensor accuracy ................................. ±1°C typ
4-Wire and 3-Wire RTD, Pt 1000 ±0.1, ±0.5 ±240, ±640
4-Wire and 3-Wire RTD, Pt 100 ±0.1, ±0.5 ±2400, ±6400
Quarter-Bridge, 350 Ω ±0.1, ±0.5 ±2400, ±6400
Quarter-Bridge, 120
Ω
±0.1, ±0.5 ±2400, ±6400
Half-Bridge, ± 500 mV/V ±0.03, ±0.07 ±300, ±450
Full-Bridge, ± 62.5 mV/V ±0.03, ±0.08 ±300, ±1000
Full-Bridge, ± 7.8 mV/V ±0.03, ±0.08 ±2200, ±8000
1 Offset Error is ±80 typ/±150 max ppm for Voltage mode with ±60 V range and
±70 typ/±140 max ppm for Voltage mode with ±1 V range when using the Best
60 Hz rejection conversion time.
2 2-Wire Resistance mode accuracy depends on the lead wire resistance. This table
assumes 0 Ω of lead wire resistance.
Mode, Range
Gain Error
(% of
Reading)
Offset Error
(ppm of
Range)
Typ (25 °C, ±5 °C),
Max (–40 to 70 °C)