SNAP-AITM
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SNAP-AITM

$289.00 (USA and Canada only)

Availability: In stock
SNAP 2-Ch Type E, J, K Thermocouple or -150mV to +150mV Analog Input Module

Production Specification

The SNAP-AITM provides two channels of analog-to-digital conversion. Each channel can be configured for -150 to +150 mV DC or -75 to +75 mV DC, or for type E, J, or K thermocouple operation. Use isolated probes for thermocouple inputs.

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 offering eight channels, see SNAP-AITM-8.

For a similar module with channel-to-channel isolation, see SNAP-AITM-i.

Build your system in the SNAP I/O Configurator.

Input Range

From -150 mV to +150 mV
From -75 mV to +75 mV

Over-Range Limits

From -165 to +165 mV
(+/-150 mV range)
From -82.5 to +82.5 mV
(+/-75 mV range)

Resolution

6 microvolts from -150 to +150 mV
3 microvolts from -75 to +75 mV

Cold Junction Temperature Compensation

Automatic when used with
SNAP I/O processors

Input Filtering

-3 dB @ 7 Hz

Input Response Time
(% of span/delta V/delta time)

63.2%/95 mV/23 mS

Data Freshness (Max)

167 ms (+/-150 mV)
334 ms (+/-75 mV)

DC Common Mode Rejection

>-120 dB

AC Common Mode Rejection

>-120 dB @ 60 Hz

Maximum Survivable Input

±15 volts

Maximum Operating Com­mon Mode Voltage

250 V

Accuracy at Full Scale

0.06% (90 microvolts) @ 150 mV
0.1% (75 microvolts) @ 75 mV

Drift: Gain Temperature
Coefficient

5 microvolts / °C

Drift: Offset Temperature Coefficient

2 microvolts / °C

Thermocouple Accuracy [°C]
  From factory
  After user gain and offset commands

 

± 2.0 (E, J, and K)

± 0.8

Isolation

1500 V

Power Requirements

5 VDC (±0.15) @ 170 mA

Input Resistance

100 Megohms (each channel)

Ambient Temperature:
  Operating
  Storage

 

-20 °C to 70 °C
-40 °C to 85 °C

Humidity

5-95%, non-condensing

Torque, hold-down screws

Not to exceed 1 in-lb (0.11 N-m)

Torque, connector screws

3 in-lb (0.34 N-m)

Agency Approvals

CE, RoHS, DFARS; UKCA

Warranty

Lifetime

SNAP PAC System Product Guide

This document lists and describes all current Opto 22 SNAP PAC System part numbers, including PAC Project software, SNAP PAC controllers, 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 the following analog input modules:

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

UKCA Declaration of Conformity (EMC, LVD, RoHS)

This document is the Manufacturer's Declaration of Conformity for the products listed herein, in accordance with the rules, regulations and standards of the United Kingdom. The models cited have been tested to the essential requirements listed in the Standards section, and fully comply with the legislation as listed in UK Legislation section.

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: 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.

I/O Solutions for Temperature Monitoring (Chinese)

This document is written in Chinese.

This white paper describes various temperature sensors such as RTDs, thermocouples, ICTDs, thermistors, and infrared sensors, and the Opto 22 solutions for using them.

Primer: I/O Solutions for Temperature Monitoring

This primer describes various temperature sensors such as RTDs, thermocouples, ICTDs, thermistors, and infrared sensors, and the Opto 22 solutions for using them.

Opto 22 RoHS 3 Statement of Compliance - Restriction of Hazardous Substances

This document is a statement of compliance with the EU Directive 2015/863/EU, Restriction of Hazardous Substances (RoHS 3). This document lists Opto 22 products that comply with the substance restrictions of the RoHS 3 directive.

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: 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.

Video: I/O Solutions for Temperature Monitoring

A quick overview on I/O Solutions for temperature monitoring.

Accuracy vs Resolution

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