RTD Input Module Select 100 Ohm RTD inputs when… …you need accurate temperature measurements using 100 Ohm platinum RTDs. Select 10 Ohm copper RTD inputs when… …you need to interface to existing 10 Ohm copper RTD sensors. ■ Best performance/lowest cost precision temperature solution ■ Resistance Temperature Detectors (RTD) are more accurate than thermocouples ■ RTD linearization is performed in software for extreme accuracy and repeatability ■ Excitation current is pulsed on only during the measurement to reduce self-heating of the RTD Performance Specifications ST-AI-RTD-06U 6 100 Ohm platinum Alpha = .00385 or .00392 Compatible lead configurations 2, 3, or 4 wire Input range -200 to 850°C Basic A/D resolution 16 bits Scaled resolution 0.1°C Full scale accuracy (@20°C) 0.5°C Span temperature coefficient +/- 25 ppm/°C Offset temperature coefficient +/- 25 ppm/°C Excitation current 250 µA (pulsed to reduce self-heating) Maximum lead wire resistance 100 Ohms per side, balanced Input protection +/- 25 VDC Fastest scan rate (all 6 channels) 700 mS ST-AI-RTC-06U 6 10 Ohm copper Number of channels RTD type 2 or 3 wire -200 to 260°C 16 bits 0.1°C 1.0°C +/- 25 ppm/°C +/- 25 ppm/°C 1.5 mA 40 Ohms per side, balanced +/- 25 VDC 700 mS Ordering Information Module w/Base Module Only 100 Ohm RTD Inputs Description ST-AI-RTD-06U ST-AI-RTD-06M 10 Ohm RTD Inputs ST-AI-RTC-06U ST-AI-RTC-06M SIXNET • Box 767 • Clifton Park, NY 12065 USA • +1 (518) 877-5173 • FAX +1 (518) 877-8346 • [email protected]