Rockwell Automation 1746-NR8 SLC 500 RTD/Resistance Input Module/ Instructions - Manual (Page 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 1000
Ω
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.
100
Ω
-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)
200 Ω -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)
500 Ω -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)
1000
Ω
-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)
100
Ω
-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)
200
Ω
-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)
500
Ω
-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)
1000 Ω -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 9.042
Ω
per SAMA standard RC21-4-1966.
10 Ω -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 100
Ω
per DIN standard.
120
Ω
-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)
120 Ω -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)
604 Ω -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)