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$595.00 (USA and Canada only)

Availability: Call for Availability
Analog current input, 24 channels, configurable input ranges of ±20 mA, 0-20 mA, 4-20 mA

Production Specification

The GRV-IMA-24 analog input module is part of the groov EPIC® system. This module provides 24 channels of analog current input with an input range of ±20 mA, 0–20 mA, and 4–20 mA. Ranges are software configurable. 

The GRV-IMA-24 mounts on a groov EPIC chassis with other analog, discrete, and serial groov I/O modules and a GRV-EPIC-PR1 processor. 


Specification GRV-IMA-24
Input Range (per channel) -20 to +20 mA, 0 to 20 mA, 4 to 20 mA
Over-range limits -22 mA to +22 mA
Resolution 0.02 µA (20-bits)
Accuracy ± 0.1% ( ± 20 µA )
Input Voltage Drop nominal (Impedance 20%) 5.5 V nominal @ 20 mA (275 Ohms)
Input Filter (hardware) -3 dB at 140 Hz
Software Data Filtering: simple moving average (SMA) and Weighted Filter SMA: 1 to 32 Readings
Filter Weight: 1 to 4096
Input Response Time 277 ms x SMA value (8.8 s with @ 32 SMA, Default SMA=4)
Data Freshness / Update 277 ms
Analog Data Filtering -3 dB @ 2.4 Hz / -25 dB @ 60 Hz
AC/DC Common Mode Rejection > -120 dB
Max. Survivable Input ± 32 V
Max. Operating Common Mode Voltage 250 V
Problem Indications out of range
Isolation (field-to-logic) 300 V working, 1500 V transient (1 minute)
Isolation (channel-to-channel) 300 V between zone A (Ch 0-11) and zone B (ch 12-23)
Number of Channels 24
Chassis Power Consumption 1.0 W
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) 5–95%
Agency Approvals UL/cUL(Class 1 Div. 2); CE, ATEX(Category 3, Zone 2), RoHS; DFARS; CB Scheme
Warranty Lifetime

groov Analog Current Input Module Data Sheet

groov analog current input modules are part of Opto 22's groov EPIC® System. This document includes descriptions, specifications, and wiring and dimensional diagrams for the following part numbers:

groov I/O Modules Firmware Readme

Readme for the latest update to the groov I/O modules. Includes information on new features, enhancements, and bug fixes.

Letter of Conformity for groov EPIC

This Letter of Conformity is provided to support Declaration of Conformity (GRV-EPIC), 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.

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.

GRV-IMA-24 Module Firmware

This download contains current firmware for the GRV-IMA-24 module. For a list of bug fixes and enhancements included in this firmware, see the groov I/O Modules Firmware readme document.

You can download the previous version of the firmware by clicking on this link: 1.3a1.0l

Accuracy vs Resolution

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