SNAP-AITM-2

Availability: In stock
SNAP 2-Ch Type B,C,D,G,N,T,R, or S Thermocouple Analog Input Module

Please call (800) 321-6786 to order.

SNAP-AITM-2

Production Specification

The SNAP-AITM-2 provides two channels of analog input with a range of -50 to +50 mV, -25 to +25 mV, or type B,C,D,G,N,T,R, or S thermocouple. 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 -50 mV to +50 mVDC
From -25 mV to +25 mVDC

Over-range Limits

From -55 to +55 mV
(+/-50 mV range)
From -27.5 to +27.5 mV
(+/-25 mV range)

Resolution

2 microvolts from -50 mV to +50 mV
1 microvolts from -25 mV to +25 mV

Cold Junction Temperature Compensation

Automatic when used with SNAP brains

Input Filtering

-3 dB @ 2.4 Hz

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

63.2%/31.5 mV/66 ms

Data Freshness (Max)

167 ms (+/- 50 mV)
334 ms (+/- 25 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

0.1% (50 microvolts) @ 50 mV
0.2% (50 microvolts) @ 25 mV

Drift: Gain Temperature Coefficient

5 microvolts / °C

Drift: Offset Temperature Coefficient

2 microvolts / °C

Thermocouple Accuracy [°C]

B, R, S

C, D, G

T, N

 From factory

±5

±4

±3

 After user gain and offset commands

±3

±2

±2

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

Agency Approvals

FM, CE, RoHS, DFARS

Torque, hold-down screws

4 in-lb (0.45 N-m)

Torque, connector screws

3 in-lb (0.34 N-m)

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.

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.

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 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: 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.

Demo: Accuracy vs Resolution

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