GRV-IMAI-8
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GRV-IMAI-8

$995.00 (USA and Canada only)

Availability: Call for Availability
Analog input, 0–20 mA, isolated, field or chassis-powered loop, 8 channels

Production Specification

The GRV-IMAI-8 analog input module is part of the groov EPIC® system. This module provides channel-to-channel isolation on its  8 channels of analog current input with an input range of 0 to 20 mA and 4 to 20 mA. Each channel can be powered by an internally isolated loop supply or from an externally connected loop supply. Ranges are software configurable.

The GRV-IMAI-8 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

GRV-IMAI-8

Input Range (per channel)

 -20 to +20 mA, 0 to 20 mA, 4 to 20 mA

0 to 20 mA, 4 to 20 mA

Over-range limits

 -22 mA to +22 mA

0 mA to +22 mA, 1.8 mA to 22.0 mA

Resolution

 0.02 µA (20-bits)

0.02 µA (20-bits)

Accuracy

 ± 0.1% ( ± 20 µA )

± 0.1% ( ± 20 µA )

Input Voltage Drop nominal (Impedance ± 20%)

 5.5 V nominal @ 20 mA (275 Ohms)

5.5 V nominal @ 20 mA (275 Ohms)

Input Filter (hardware)

 -3 dB at 140 Hz

-3 dB at 140 Hz

Step Input Response Time

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

11 ms x SMA value
(.355 s @ 32 SMA, Default SMA = 4)

Data Freshness / Update

 225 ms

11 ms

Analog Data Filtering

 -3 dB @ 2.4 Hz / -25 dB @ 60 Hz

-5 dB @ 60 Hz

Software Data Filtering:
Simple moving average (SMA)
Weighted Filter


SMA: 1 to 32 Readings
Filter Weight: 1 to 4096


SMA: 1 to 32 readings
Filter Weight: 1 to 4096

Common Mode Rejection

 > -120 dB

 > -120 dB

Max. Survivable Input

 ± 32 V

 ± 32 V

Problem Indications

 out of range

out of range

Isolation (field-to-logic)

 300 V working, 1500 V transient (1 minute)

Isolation (channel-to-channel)

 300 V between group A (ch 0-11) & group B (ch 12-23)

 300 V working, 1500 V transient (1 minute)

Number of Channels

 24

 8

Chassis Power Consumption

 1.0 W

 1.4 W

Minimum GRV-EPIC-PR1 Firmware Version

 1.0.0

 1.3.0

Minimum PAC Project Version

 10.0000

 10.2000

Wire Size

 28-14 AWG

 28-14 AWG

Torque, connector screw

 2.5 in-lb (0.28 N-m)

 2.5 in-lb (0.28 N-m)

Torque, hold-down screw

 3.5 in-lb (0.4 N-m)

 3.5 in-lb (0.4 N-m)

Temperature (operating)

 -20 °C to +70 °C

 -20 °C to +70 °C

Temperature (storage)

 -40 °C to +85 °C

 -40 °C to +85 °C

Relative Humidity (non-condensing)

 5-95%

 5-95%

Agency Approvals

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

Warranty

 Lifetime

 Lifetime

groov Analog Current Input Module Data Sheet

The groov analog input module is part of Opto 22's groov EPIC® System. This document includes descriptions, specifications, and wiring and dimensional diagrams for most analog current input modules.

Declaration of Conformity (GRV-EPIC)

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 that apply to all groov I/O modules. There are two drawings:

  • One drawing that shows the module cover in the lower position.
  • One drawing that shows the module cover in the higher position.

Demo: Accuracy vs Resolution

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