(USA and Canada only)
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
Average Filter Weight
Simple Moving Average
-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
0.005 °C (0.0072 °F)
Accuracy with ICTD PROBE
±0.8 °C (±1.4 °F)
-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 )
Analog Data Filtering
-3 dB @ 2.4 Hz / -25 dB @ 60 Hz
Common Mode Rejection
> -120 dB AC/DC
out of range
300 V working, 1500 V transient (1 minute)
Number of Channels
Chassis Power Consumption
Minimum GRV-EPIC-PR1 Firmware Version
Torque, connector screw
2.5 in-lb (0.28 N-m)
Torque, hold-down screw
3.5 in-lb (0.4 N-m)
-20 °C to +70 °C
-40 °C to +85 °C
Relative Humidity (non-condensing)
UL/cUL (Class 1 Div. 2)a; CE, ATEX (Category 3, Zone 2), RoHS; DFARS; CB Scheme; UKCA
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.
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.
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.
This ATEX Letter of Conformity is provided to support CE Declaration of Conformity (groov EPIC and groov RIO), form 2261.
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.
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: 1.3b, 1.3a
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.