Specifications

24
SLC 500 Programmable Controllers and I/O Modules
RTD Temperature Range and Accuracy Specifications
RTD Type 1746-NR4 1746-NR8
0.5 mA Excitation 2.0 mA Excitation 0.25 mA Excitation 1.0 mA Excitation
Temp. Range Acc. Temp. Range Acc.
(1)
Temp. Range Acc.
(1)
Temp. Range Acc.
(1)
Platinum 100Ω -200˚C to +850˚C ±1.0˚C -200˚C to +850˚C ±0.5˚C -200˚C to +850˚C ±0.5˚C -200˚C to +850˚C ±0.7˚C
(385) (-328˚F to +1562˚F) (±2.0˚F) (-328˚F to +1562˚F) (±0.9˚F) (-328˚F to +1562˚F) (±0.9˚F) (-328˚F to +1562˚F) (±1.3˚F)
200Ω -200˚C to +850˚C ±1.0˚C
(2)
-200˚C to +850˚C ±0.5˚C -200˚C to +850˚C ±0.6˚C -200˚C to +850˚C ±0.7˚C
(-328˚F to +1562˚F) (±2.0˚F) (-328˚F to +1562˚F) (±0.9˚F) (-328˚F to +1562˚F) (±1.1˚F) (-328˚F to +1562˚F) (±1.3˚F)
500Ω -200˚C to +850˚C ±0.6˚C -200˚C to +850˚C ±0.5˚C -200˚C to +850˚C ±0.7˚C -200˚C to +370˚C ±0.5˚C
(-328˚F to +1562˚F) (±1.1˚F) (-328˚F to +1562˚F) (±0.9˚F) (-328˚F to +1562˚F) (±1.3˚F) (-328˚F to +698˚F) (±0.9˚F)
1000Ω -200˚C to +850˚C ±0.6˚C -200˚C to +240˚C ±0.5˚C -200˚C to +850˚C ±1.2˚C -200˚C to +50˚C ±0.4˚C
(-328˚F to +1562˚F) (±1.1˚F) (-328˚F to +464˚F) (±0.9˚F) (-328˚F to +1562˚F) (±2.2˚F) (-328˚F to +122˚F) (±0.7˚F)
Platinum 100Ω -200˚C to +630˚C ±1.0˚C
(2)
-200˚C to +630˚C ±0.4˚C -200˚C to +630˚C ±0.4˚C -200˚C to +630˚C ±0.6˚C
(3916) (-328˚F to +1166˚F) (±2.0˚F) (-328˚F to +1166˚F) (±0.7˚F) (-328˚F to +1166˚F) (±0.7˚F) (-328˚F to +1166˚F) (±1.1˚F)
200Ω -200˚C to +630˚C ±1.0˚C
(2)
-200˚C to +630˚C ±0.4˚C -200˚C to +630˚C ±0.5˚C -200˚C to +630˚C ±0.6˚C
(-328˚F to +1166˚F) (±2.0˚F) (-328˚F to +1166˚F) (±0.7˚F) (-328˚F to +1166˚F) (±0.9˚F) (-328˚F to +1166˚F) (±1.1˚F)
500Ω -200˚C to +630˚C ±0.5˚C -200˚C to +630˚C ±0.4˚C -200˚C to +630˚C ±0.6˚C -200˚C to +370˚C ±0.4˚C
(-328˚F to +1166˚F) (±0.9˚F) (-328˚F to +1166˚F) (±0.7˚F) (-328˚F to +1166˚F) (±1.1˚F) (-328˚F to +698˚F) (±0.7˚F)
1000Ω -200˚C to +630˚C ±0.5˚C -200˚C to +230˚C ±0.4˚C -200˚C to +630˚C ±0.9˚C -200˚C to +50˚C ±0.3˚C
(-328˚F to +1166˚F) (±0.9˚F) (-328˚F to +446˚F) (±0.7˚F) (-328˚F to +1166˚F) (±1.6˚F) (-328˚F to +122˚F) (±0.6˚F)
Copper 10Ω Not Allowed -100˚C to +260˚C ±0.6˚C -100˚C to +260˚C ±0.5˚C -100˚C to +260˚C ±0.8˚C
(426) (-148˚F to +500˚F) (±1.1˚F) (-148˚F to +500˚F) (±0.9˚F) (-148˚F to +500˚F) (±1.4˚F)
Nickel 120Ω -100˚C to +260˚C ±0.2˚C -100˚C to +260˚C ±0.2˚C -100˚C to +260˚C ±0.2˚C -100˚C to +260˚C ±0.2˚C
(618) (-148˚F to +500˚F) (±0.4˚F) (-148˚F to +500˚F) (±0.4˚F) (-148˚F to +500˚F) (±0.4˚F) (-148˚F to +500˚F) (±0.4˚F)
Nickel 120Ω -80˚C to +260˚C ±0.2˚C -80˚C to +260˚C ±0.2˚C -80˚C to +260˚C ±0.2˚C -80˚C to +260˚C ±0.2˚C
(672) (-112˚F to +500˚F) (±0.4˚F) (-112˚F to +500˚F) (±0.4˚F) (-112˚F to +500˚F) (±0.4˚F) (-112˚F to +500˚F) (±0.4˚F)
Nickel/ 604Ω -100˚C to +200˚C ±0.3˚C -100˚C to +200˚C ±0.3˚C -200˚C to +200˚C ±0.3˚C -200˚C to +170˚C ±0.3˚C
Iron (518) (-148˚F to +392˚F) (±0.5˚F) (-148˚F to +392˚F) (±0.5˚F) (-328˚F to +392˚F) (±0.5˚F) (-328˚F to +338˚F) (±0.5˚F)
(1) The accuracy values assume that the module was calibrated within the specified temperature range of 0˚C to 60˚C (32˚F to 140˚F).
(2) Module accuracy, using 100W or 200W platinum RTDs with 0.5 excitation current, depends on the following criteria:
(a) Module accuracy is ±0.6˚C after you apply power to the module or perform an autocalibration at 25˚C (77˚F) ambient with module operating temperature at 25˚C (77˚F).
(b) Module accuracy is ±(0.6˚C + DT x 0.034˚C/˚C) after you apply power to the module or perform an autocalibration at 25˚C (77˚F) ambient with the module operating
temperature between 0˚C to 60˚C (32˚F to 140˚F). - where DT is the temperature difference between the actual operating temperature of the module and 25˚C (77˚F) and
0.034˚C/˚C is the temperature drift shown in the table above for 100W or 200W platinum RTDs.
(c) Module accuracy is ±1.0˚C after you apply power to the module or perform an autocalibration at 60˚C (140˚F) ambient with module operating temperature at 60˚C (140˚F).