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$520.00 (USA and Canada only)

Availability: In stock
Analog input, temperature, ICTD, 12 channels

Production Specification

The GRV-IICTD-12 analog input module is part of the groov EPIC® system. This module collects temperature input data from any industry-standard Integrated Circuit Temperature Device (ICTD), such as the ICTD and ICTD-P3. The module has 12 channels of input.

The GRV-IICTD-12 mounts on a groov EPIC chassis with other analog, discrete, and serial groov I/O modules and a GRV-EPIC-PR1 processor. 





Offset and Gain


Minimum/Maximum Values


Average Filter Weight


Simple Moving Average


Analog Totalizing


Problem indication





Input Range

-270.0 °C to 150 °C (-454.0 °F to 302 °F)

Input Range with ICTD Probe

-40.0 °C to 100 °C (-40.0 °F to 212 °F)

Input Range uA

3 to 425 µA

Over-range limits

-270.0 °C to 150 °C (-454.0 °F to 302 °F)


0.005 °C (0.0072 °F)

Accuracy with ICTD PROBE

±0.8 °C (±1.4 °F)

Input Filter

-3 dB at 460 HZ

Software Data Filtering:

SMA (simple moving average)

Weighted filter (Original)

1 to 32 Readings, moving average

1 to 4096 Filter Weight

Step Input Response Time

225 ms x SMA value (7.2 s @ 32 SMA, Default SMA = 4 )

Data Freshness

225 ms

Analog Data Filtering

-3 dB @ 2.4 Hz / -25 dB @ 60 Hz

Common Mode Rejection

> -120 dB AC/DC

Problem Indications

out of range

Isolation (field-to-logic)

300 V working, 1500 V transient (1 minute)

Isolation (channel-to-channel)


Number of Channels


Chassis Power Consumption

1.0 W

Minimum GRV-EPIC-PR1 Firmware Version


Minimum PAC Project Version 10.2000

Wire Size

28–14 AWG

Torque, connector screw

2.5 in-lb (0.28 N-m)

Torque, hold-down screw

3.5 in-lb (0.4 N-m)

Temperature (operating)

-20 °C to +70 °C

Temperature (storage)

-40 °C to +85 °C

Relative Humidity (non-condensing)


Agency Approvals

UL/cUL (Class 1 Div. 2)a; CE, ATEX (Category 3, Zone 2), RoHS; DFARS; CB Scheme; UKCA



a For use in hazardous locations, equipment must be mounted in an enclosure that meets the requirements of the National Electrical Code, ANSI/NFPA 70, and ANSI/ISA-61010-1 (82.02.01).

groov ICTD Temperature Input Module Data Sheet

The groov ICTD temperature input module, part number  GRV-IICTD-12, is part of Opto 22's groov EPIC® System. This document includes descriptions, specifications, and wiring and dimensional diagrams.

groov I/O Modules Firmware Release Notes

This document lists the latest updates to the firmware for groov I/O modules. It includes information on new features, enhancements, and bug fixes.

List of groov I/O module firmware download pages

Note: This document was formerly called a readme. The name was changed to more accurately describe its content.

UKCA Declaration of Conformity (groov EPIC and groov RIO)

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.

ATEX Letter of Conformity for groov EPIC

This ATEX Letter of Conformity is provided to support CE Declaration of Conformity (groov EPIC and groov RIO), form 2261.

Declaration of Conformity (groov EPIC and groov RIO)

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.

GRV-IICTD-12 Module Firmware

This download contains current firmware for the GRV-IICTD-12 module. For a list of bug fixes and enhancements included in this firmware, see the groov I/O Modules Firmware Release Notes.

You can download previous versions of the firmware by clicking on the corresponding link: 1.3b1.3a

CAD Drawing: groov I/O Module

This ZIP file includes drawings in a variety of file formats (pdf, dwg, stp) that apply to all groov I/O modules.

Note: These drawings do not apply to groov RIO modules.

CAD Drawings: groov EPIC and groov RIO I/O wiring

This ZIP file contains I/O wiring diagrams for groov EPIC I/O modules and groov RIO models, in DWG format.

No videos or demos are available for this product.