SNAP-AIMA

Availability: In stock
SNAP 2-Ch -20mA to +20mA Analog Current Input Module

Please call (800) 321-6786 to order.

SNAP-AIMA

Production Specification

The SNAP-AIMA provides two channels of -20 mA to +20 mA analog current input. The module does not supply loop excitation current. Although the two channels are not isolated from each other, the module is transformer isolated and optically isolated from other modules and devices.

Part of the SNAP PAC System, the module mounts on a SNAP PAC rack with a SNAP PAC brain or rack-mounted controller. Analog, digital, and serial I/O modules can all be on the same rack. Such an I/O unit is also well suited for PC-based control or for use as intelligent remote I/O for an Allen-Bradley Logix PLC system, such as ControlLogix, MicroLogix, or CompactLogix.

For a similar module that provides two isolated channels, see SNAP-AIMA-i.

For a module that provides two isolated channels and supplies loop excitation, see SNAP-AIMA-iSRC.

For SNAP PAC brains and rack-mounted controllers, we also have a four-channel module, the SNAP-AIMA-4, and a 32-channel module, the SNAP-AIMA-32.

Build your system in the SNAP I/O Configurator.

Input Range

-20 mA to +20 mA

Resolution

0.8 microamps

Over-Range Limits

From -22 to +22 mA
(+/-20 mA range)

Input Response Time
(% of span/ delta I/delta tme)

99.9% / 19.9 mA / 10 ms

Data Freshness (Max)

SNAP-AIMA: 11.5 ms
SNAP-AIMA-4: 23 ms

DC Common Mode Rejection

>-120 dB

AC Common Mode Rejection

>-120 dB @ 60 Hz

Maximum Survivable Input

36 mA or 9 VDC

Maximum Operating Common Mode Voltage

250 V

Accuracy

0.05% (10 microamps)

DRIFT: Gain Temperature Coefficient

30 PPM/ °C

DRIFT: Offset Temperature Coefficient

15 PPM/ °C

Power Requirements

5 VDC (±0.15 ) @ 170 mA

Input Resistance - Single Ended

200 ohms (each channel)

Operating Temperature

-20 °C to 70 °C

Storage Temperature

-40 °C to 85 °C

Humidity

5-95%, non-condensing

Torque, hold-down screws

4 in-lb (0.45 N-m)

Torque, connector screws

5.26 in-lb (0.6 N-m)

Wire size

22 to 14 AWG

Agency Approvals

UL, FM, CE, RoHS, DFARS

Warranty

Lifetime

SNAP PAC System Product Guide

This document lists and describes all Opto 22 SNAP PAC System part numbers, including PAC Project software, SNAP PAC controllers, SNAP PAC brains, and SNAP I/O modules of all kinds. SNAP PAC mounting racks and SNAP power supplies are also listed.

SNAP Analog Input Modules Data Sheet

SNAP I/O analog input modules are part of Opto 22's SNAP PAC System. This document includes descriptions, specifications, and wiring and dimensional diagrams for most analog input modules.

For analog modules with channel-to-channel isolation, see Form 1182,  Snap Isolated Analog Input Modules Data Sheet.

Declaration of Conformity (EMC, LVD, RoHS)

This document is the Manufacturer's Declaration of Conformity for the products listed herein, in accordance with European, international, and/or national standards and regulations.

Case Study: New Bedford Panoramex

Claremont, California-based New Bedford Panoramex Corporation (NBP) specializes in the design and development of air traffic control systems and lighting systems used in the aerospace and aviation industry. An examination of some of NBP’s most widely deployed lighting control systems finds that their key components are programmable automation controllers and intelligent I/O systems from Opto 22. Among other things, the hardware provides the interface and intelligence used to sequence lights and adjust their intensity. For some of these systems, an Opto 22 SNAP PAC programmable automation controller replaces an embedded single-board controller that took five times as long to program (using “C” code) than the flowchart-based programming used for the SNAP PAC.

Case Study: University of California, Irvine

At the University of California, Irvine, Scientist Dr. John Garman and a team of his engineering students use an Opto 22 SNAP PAC System in their research of coal and biomass combustion. The SNAP PAC hardware controls the coal feed rate into an entrained flow reactor, monitors thermocouples that feed back process control data, monitors emissions, and acquires and logs data on operating conditions within the reactor.

Opto 22 RoHS 2 Statement of Compliance - Restriction of Hazardous Substances

This document is a statement of compliance with the EU Directive 2011/65/EU, Restriction of Hazardous Substances (RoHS 2). This document lists Opto 22 products that comply with the substance restrictions of the RoHS2 directive.

FM Approval Document

This document lists all Opto 22 part numbers that have Factory Mutual (FM) approval.

UL Approval Document

This document lists all Opto 22 part numbers that have the Underwriters Laboratory (UL) approval.

CE Declaration: Component

This document is the Manufacturer's Declaration for the listed products as mentioned in the attachment - to which this confirmation refers - that they are in accordance with the mentioned European, international and/or national standards and regulations.

CE Declaration: EMC

This document is the Manufacturer's Declaration for the listed products as mentioned in the attachment - to which this confirmation refers - that they are in accordance with the mentioned European, international and/or national standards and regulations.

CE Declaration: Low Voltage

This document is the Manufacturer's Declaration for the listed products as mentioned in the attachment - to which this confirmation refers - that they are in accordance with the mentioned European, international and/or national standards and regulations.

CAD Drawing: SNAP I/O Module

This CAD file includes drawings that apply to most SNAP analog and digital I/O modules.

Video: SNAP PAC System Overview

This overview describes the four integrated components of the SNAP PAC system: software, controllers, brains and I/O. This hardware and software system is designed for industrial control, remote monitoring and data acquisition.

Video: Verifying Voltage at the I-O Rack

Verifying the voltage level at the I/O rack is very important for equipment safety and point value accuracy. This is the proper technique for reading the voltage level at the rack.

Video: Securing SNAP Module

A quick overview on securing a SNAP Module to a SNAP rack.

Video: Removing a SNAP Module

A quick overview on removing a SNAP module.

Demo: Accuracy vs Resolution

What's the difference between accuracy and resolution in analog I/O specifications? Try your own specs in the calculator.