AD3T Opto 22

DATA SHEET Standard Analog Current Input Modules Form 443-111026 Standard Analog Current Input Modules Features Single channel of optically-isolated current-to-digital conversion AD3T and AD2T modules offer additional channel-to- channel isolation T modules provide 4,000 Vrms channel-to-channel isolation which eliminates any loop problems AD3T Description Each Opto 22 AD3, AD3T, and AD2T analog input module provides a single channel of optically-isolated current-to- digital conversion. The AD3T and AD2T modules offer additional channel-to-channel isolation. For the AD3 and AD3T modules, the nominal input range is 4 to 20 mA with an under/over range capability from less than 3 mA to greater than 35 mA. The AD2T module has a nominal input range of 0 to 20 mA with an under/over range capability from less than - 1.25 mA to greater than 35 mA. The T modules also provide 4,000 Vrms channel-to-channel isolation which eliminates any loop problems. These modules plug into a Classic Standard analog I/O rack and are secured by a captive screw. Part Numbers Part Description AD3 4 to 20 mA Input AD3T 4 to 20 mA Input Isolated AD2T 0 to 20 mA Input Isolated Opto 22 43044 Business Park Drive Temecula, CA 92590-3614 www.opto22.com PAGE SALES 800-321-6786 951-695-3000 FAX 951-695-3095 sales opto22.com SUPPORT 800-835-6786 951-695-3080 FAX 951-695-3017 support opto22.com 1 2011 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.Standard Analog Current Input Modules Specifications AD3 AD3T AD2T Input Impedance 249 Ohms 249 Ohms 50 Ohms Nominal Input Range 4 to 20 mA 4 to 20 mA 0 to 20 mA Over/under Range 3 to 35 mA 3 to 35 mA -1.25 to 35 mA Accuracy 0.016 mA (0.1% of span) 0.016 mA (0.1% of span) 0.020 mA (0.1% of span) Resolution 12 bits (0.0039 mA) 12 bits (0.0039 mA) 12 bits (0.0049 mA) Response Time Full-scale step change in 3 ms Isolation Transient Input-to-Output 4,000 Vrms 4,000 Vrms 4,000 Vrms Input-to-Analog-Supply n/a 4,000 Vrms 4,000 Vrms 13 mA at +15 (+/- 0.25) VDC 35 mA at +15 (+/- 0.25) VDC 35 mA at +15 (+/- 0.25) VDC Power Requirements 7.5 mA at -15 (+/- 0.25) VDC 35 mA at -15 (+/- 0.25) VDC 35 mA at -15 (+/- 0.25) VDC Ambient Temperature: Operating 0 to 70 C Storage - 25 to 85 C *Accuracy figures assume use of Gain and Offset commands. Opto 22 43044 Business Park Drive Temecula, CA 92590-3614 www.opto22.com PAGE SALES 800-321-6786 951-695-3000 FAX 951-695-3095 sales opto22.com SUPPORT 800-835-6786 951-695-3080 FAX 951-695-3017 support opto22.com 2 2011 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations. DATA SHEET Standard Analog Current Input Modules Form 443-111026