Rockwell-automation 1746-NR8 SLC 500 RTD/Resistance Input Module/ Inst Manual de usuario descargar pdf (Pagina 19)

SLC 500™ RTD/Resistance Input Module 19

Publication 1746-IN007C-EN-P - December 2002

RTD Temperature Ranges, Resolution, and Repeatability

Input Type Temp. Range

(0.25 mA Excitation)

(1)

(1) The temperature range for the 1000Ω RTD is dependent on the excitation current.

Temp. Range

(1.0 mA Excitation)

(1)

Resolution Repeatability

Platinum

(385)

(2)

(2) The digits following the RTD type represent the temperature coefficient of resistance (α), which is defined as the resistance

change per ohm per °C. For instance, Platinum 385 refers to a platinum RTD with

α = 0.00385 ohms/ohm - °C or simply 0.00385/°C.

100Ω -200°C to +850°C

(-328°F to +1562°F)

-200°C to +850°C

(-328°F to +1562°F)

0.1°C

(0.1°F)

±0.2°C

(±0.4°F)

200Ω -200°C to +850°C

(-328°F to +1562°F)

-200°C to +850°C

(-328°F to +1562°F)

0.1°C

(0.1°F)

±0.2°C

(±0.4°F)

500Ω -200°C to +850°C

(-328°F to +1562°F)

-200°C to +390°C

(-328°F to +698°F)

0.1°C

(0.1°F)

±0.2°C

(±0.4°F)

1000Ω -200°C to +850°C

(-328°F to +1562°F)

-200°C to +50°C

(-328°F to +122°F)

0.1°C

(0.1°F)

±0.2°C

(±0.4°F)

Platinum

(3916)

(2)

100Ω -200°C to +630°C

(-328°F to +1166°F)

-200°C to +630°C

(-328°F to +1166°F)

0.1°C

(0.1°F)

±0.2°C

(±0.4°F)

200Ω -200°C to +630°C

(-328°F to +1166°F)

-200°C to +630°C

(-328 °F to +1166°F)

0.1°C

(0.1°F)

±0.2°C

(±0.4°F)

500Ω -200°C to +630°C

(-328°F to +1166°F)

-200°C to +380°C

(-328°F to +698°F)

0.1°C

(0.1°F)

±0.2°C

(±0.4°F)

1000Ω -200°C to +630°C

(-328°F to +1166°F)

-200°C to +50°C

(-328°F to +122°F)

0.1°C

(0.1°F)

±0.2°C

(±0.4°F)

Copper

(426)

(2)

(3)

(3) Actual value at 0°C is 9.042Ω per SAMA standard RC21-4-1966.

10Ω -100°C to +260°C

(-328°F to +500°F)

-100°C to +260°C

(-148°F to +500°F)

0.1°C

(0.1°F)

±0.2°C

(±0.4°F)

Nickel

(618)

(2) (4)

(4) Actual value at 0°C is 100Ω per DIN standard.

120Ω -100°C to +260°C

(-328°F to +500°F)

-100°C to +260°C

(-328°F to +500°F)

0.1°C

(0.1°F)

±0.1°C

(±0.2°F)

Nickel

(672)

(2)

120Ω -80°C to +260°C

(-328°F to +500°F)

-80°C to +260°C

(-328°F to +500°F)

0.1°C

(0.1°F)

±0.1°C

(±0.2°F)

Nickel Iron

(518)

(2)

604Ω -200°C to +200°C

(-328°F to +392°F)

-200°C to +180°C

(-328°F to +338°F)

0.1°C

(0.1°F)

±0.1°C

(±0.2°F)

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