SNAP-AIRTD

Availability: In stock
SNAP 2-Ch 100-Ohm Platinum RTD Analog Temperature Input Module

Please call (800) 321-6786 to order.

SNAP-AIRTD

Production Specification

The SNAP-AIRTD provides two channels of analog temperature input. Nominal input temperature range is -200 to +850 degrees C. Input range is 0 to 400 ohms. Although the two channels are not isolated from each other, the module is transformer isolated and optically isolated from other modules and devices. Modules are factory calibrated.

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.

The SNAP-AIRTD uses 100 ohm platinum inputs. For other similar modules, see the SNAP-AIRTD-1K (1000 ohm platinum) and the SNAP-AIRTD-10 (10 ohm copper).

Build your system in the SNAP I/O Configurator.

 

SNAP-AIRTD-1K

SNAP-AIRTD

SNAP-AIRTD-10

3-wire RTD input

1000 ohm platinum @ 0 °C α= 0.00385

1000 ohm nickel @ 0 °C
α= 0.00618

1000 ohm nickel @ 70 °F
α= 0.00637

100 ohm platinum; α= 0.00385

100 ohm nickel, -60 to 250 °C

120 ohm nickel, -80 to 260 °C

10 ohm copper; α= 0.00428

Input Temperature Range

-200 °C to 850 °C
(-328° to +1,582° F)

-200 °C to 850 °C
(-328° to +1,582° F)

-180 °C to 260 °C
(-292° to +500° F)

Input Range

0 to 4000 ohms

0 to 400 ohms

0 to 25 ohms

Over-Range Limit

to 4400 ohms

to 440 ohms

to 27.5 ohms

Resolution (average)

0.042 °C (0.16 ohms)

0.042 °C (0.016 ohms)

0.026 °C (0.001 ohms)

Input Filtering

-3 dB @ 0.1 Hz

-3 dB @ 0.1 Hz

-3 dB @ 100 Hz

Data Freshness (Max)

100 ms

100 ms

168 ms

Lead Compensation

Automatic when used with SNAP brains

Automatic when used with SNAP brains

Automatic when used with SNAP PAC brains

DC Common Mode Rejection

>-120 dB

>-120 dB

>-120 dB

AC Common Mode Rejection

>-120 dB at 60 Hz

>-120 dB at 60 Hz

>-120 dB at 60 Hz

Excitation (typical)

0.256 mA constant current

1.25 mA constant current

5.4 mA constant current

Maximum Lead Resistance

40 ohms single wire (all leads to be equal resistance)

40 ohms single wire (all leads to be equal resistance)

15 ohms single wire (all leads to be equal resistance)

Maximum Fault Voltage at Input
(between any 2 field wires)

±15 V

±15 V

±15 V

Maximum Operating Common Mode Voltage

250 V

250 V

250 V

Accuracy
 From factory
 After setting gain and offset

 

0.8 °C
0.6 °C

 

0.8 °C
0.6 °C

 

0.6 °C
0.5 °C

Isolation

1500 V

1500 V

1500 V

Power Requirements

5.00 to 5.20 VDC @ 190 mA

5.00 to 5.20 VDC @ 190 mA

5.00 to 5.20 VDC @ 190 mA

Operating Temperature

-20 °C to 70 °C

-20 °C to 70 °C

-20 °C to 70 °C

Storage Temperature

-40 °C to 85 °C

-40 °C to 85 °C

-40 °C to 85 °C

Humidity

5-95%, non-condensing

5-95%, non-condensing

5-95%, non-condensing

Wire size

22 to 14 AWG

22 to 14 AWG

22 to 14 AWG

Torque, hold-down screws

4 in-lb (0.45 N-m)

4 in-lb (0.45 N-m)

4 in-lb (0.45 N-m)

Torque, connector screws

5.26 in-lb (0.6 N-m)

5.26 in-lb (0.6 N-m)

5.26 in-lb (0.6 N-m)

Agency Approvals

CE, RoHS, DFARS

UL, FM, CE, RoHS, DFARS

CE, RoHS, DFARS

Warranty

Lifetime

Lifetime

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.

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.

Scaling and Linearization Example

A example strategy written in PAC Control Basic R8.2f that demonstrates how to scale and linearize values. This example strategy uses subroutines to perform most calculations.

Before you download, read the Legal Agreement.

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.