National Instruments cFP-RTD-122 用户手册

© National Instruments Corp.

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Operate the [c]FP-RTD-122 only at or below Pollution 
Degree 2. Pollution Degree 2 means that only nonconductive 
pollution occurs in most cases. Occasionally, however, a 
temporary conductivity caused by condensation must be 
expected.

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Refer to the FieldPoint product label for regulatory 
certification under hazardous location standards. If the 
FieldPoint product is not certified for operation in hazardous 
locations, do not operate it in an explosive atmosphere or 
where there may be flammable gases or fumes.

These specifications are typical for the range –40 to 70°C unless 
otherwise noted. Gain error is calculated as a percentage of input 
signal value.

Number of channels.......................... 8

ADC resolution................................. 16 bits

Type of ADC..................................... Delta-sigma

Input signal ranges (software selectable by channel)

Temperature................................ 73 to 1123 K

–200 to 850 °C
–328 to 1562 °F

Resistance................................... 0 to 400 

Ω or 0 to 4,000 Ω

Temperature accuracy (includes 5% matched,
0.5 

Ω lead wires—10 m of 22 AWG copper)

Resolution ......................................... 0.016 °C

Resistance accuracy

Offset error, 400 

Ω range

15 to 35 °C ........................... 0.03 

Ω typ, 0.08 Ω max

–40 to 70 °C......................... 0.08 

Ω typ, 0.4 Ω max

–200 to 150 °C

0.15

0.30

0.40

1.6

150 to 850 °C

0.25

0.50

0.90

3.0