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SNAP-AIRATE Datasheet(PDF) 11 Page - Opto Electronics Co,. LTD |
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SNAP-AIRATE Datasheet(HTML) 11 Page - Opto Electronics Co,. LTD |
11 / 46 page SNAP Analog Input Modules Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com 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 © 2001–2014 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. PAGE 11 0 to 25,000 Hz Analog Rate Input Module Specifications Description The SNAP-AIRATE module provides two channels of frequency-to-digital conversion. The nominal input range is 0 to 25,000 Hz with an over-range capability to 27,500 Hz. Nine volts through a 4.7 K ohm pull-up resistor are provided internally for use with devices that have open collector outputs. This feature eliminates the need for the user to provide the pull-up voltage supply and associated wiring, barrier strips, etc. The module works with TTL, CMOS, and open collector outputs. Truly a two-wire hookup, the SNAP-AIRATE module is ideally suited for use with a tachometer. Please note that this module does not provide channel-to- channel isolation. If you need isolated channels, see the SNAP Isolated Analog Input Modules Data Sheet, form 1182. Nominal Input Range 0 to 25,000 Hz Input Over-Range To 27,500 Hz Resolution 1 Hz Input Response Time(% of span / delta Hz / delta time) 10.0% / 2,500 Hz / 0.1 sec 63.2% / 15.8 K Hz / 0.9 sec 99.0% / 24.75 K Hz / 4.2 sec Data Freshness (Max) 126 ms DC Common Mode Rejection > -120 dB AC Common Mode Rejection > -120 dB at 60 Hz Maximum Operating Common Mode Voltage 250 V Accuracy (% full scale) ±4 Hz or ±0.5% of the input fre- quency (whichever is greater) Drift: Gain Temperature Coeffi- cient 200 ppm / °C Drift: Offset Temperature Coef- ficient 50 ppm / °C Input Coupling Single-ended AC (capacitor coupled) Input Amplitude Sine wave Square wave 2.5 V to 24 V p-p 0.5 V to 24 V p-p Minimum Pulse Width 18 microseconds Input Impedance (Inputs share the same reference point.) Pull-up Voltage Pull-up Resistor 50 K ohms AC coupled (-input to +input) 6 to 9 V 4.7 K ohms Isolation 1500 V Power Requirements 5 VDC (±0.15 V) at 190 mA Operating Temperature 0 °C to 70 °C Storage Temperature -40 °C to 85 °C Wire size 22 to 14 AWG Torque, hold-down screws 4 in-lb (0.45 N-m) Torque, connector screws 5.26 in-lb (0.6 N-m) Agency Approvals UL, FM, CE, RoHS, DFARS Warranty Lifetime Part Number Description SNAP-AIRATE 0–25,000 Hz analog rate input |
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