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GRV-ITMI-8
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GRV-ITMI-8

$855.00 (USA and Canada only)

Availability: In stock
Analog input, 8 channel, thermocouple or mV, channel-to-channel isolation
Data Sheet

Production Specification

The GRV-ITMI-8 analog module is part of the groov EPIC® system. This flexible module provides 8 channels of input from millivolt or thermocouple field devices. Each channel is individually configurable for ±1200 mV, ±600 mV, ±300 mV, ±150 mV, ±75 mV, ±50 mV, ±25 mV or Type B, E, J, K, N, R, S, or T thermocouples.

The eight channels on the module are isolated from each other. Since these channels do not share any common connections, you can use grounded sensors and field devices with them.

The GRV-ITMI-8 mounts on a groov EPIC chassis with a GRV-EPIC-PR1 processor and additional analog, discrete, and serial groov I/O modules, to provide the mix of signals you need at any location.

 

Specification GRV-ITMI-8
Millivolt Input Ranges ±1200.0 mV, ±600.0 mV, ±300.0 mV, ±150.0 mV, ±75.0 mV, ±50.0 mV, ±25.0 mV
Over range limits (± 10%) ±1320.0 mV, ±660.0 mV, ±330.0 mV, ±165.0 mV, ±82.5 mV, ±55.0 mV, ±27.5 mV
Resolution mV Range / 1,048,576 (20 bits)
Accuracy 0.1% of Range ±1200 µV, ±600 µV, ±300 µV, ±150 µV, ±75 µV, ±50 µV, ±50 µV
Thermocouple ITS90 Types Accuracy* / Resolution
B: 90 °C to 1,820 °C (194 °F to 3,308 °F) 5.0 °C (9.0 °F)/ 0.05 °C (0.1 °F)
E: -270 °C to 1,000 °C (-454 °F to 1,832 °F) 2.0 °C (3.6 °F)/ 0.05 °C (0.1 °F)
J: -210 °C to 1,200 °C (-346 °F to 2,192 °F) 2.0 °C (3.6 °F)/ 0.05 °C (0.1 °F)
K: -270 °C to 1,372 °C (-454 °F to 2,501.6 °F) 2.0 °C (3.6 °F)/ 0.05 °C (0.1 °F)
N: -270 °C to 1,300 °C (-454 °F to 2,372 °F) 3.0 °C (5.4 °F)/ 0.05 °C (0.1 °F)
R: -50 °C to 1,768 °C (-58 °F to 3,214.4 °F) 5.0 °C (9.0 °F)/ 0.05 °C (0.1 °F)
S: -50 °C to 1,768 °C (-58 °F to 3,214.4 °F) 5.0 °C (9.0 °F)/ 0.05 °C (0.1 °F)
T: -270 °C to 400 °C (-454 °F to 752 °F) 3.0 °C (5.4 °F)/ 0.05 °C (0.1 °F)
Cold Junction Compensation Automatic
Data Freshness (nominal) mV Ranges = 21 ms / T/C Ranges = 46 ms
Analog Data Filtering -3 dB @ 2.4 Hz / -25 dB @ 60 Hz
Software Data Filtering, simple moving average (SMA) and Weighted filter SMA: 1 to 32 readings
Filter Weight: 1 to 4096
Step Response Time (to 1%) 85 ms
Common Mode Rejection > -120 dB AC/DC
Input Resistance 100 megohm
Problem Indication out of range, open thermocouple
Isolation (field-to-logic) 300 V working, 1500 V transient (1 minute)
Isolation (channel-to-channel) 300 V working, 1500 V transient (1 minute)
Number of Channels 8
Chassis Power Consumption 1.4 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
Humidity (non-condensing) 5–95% RH
Agency Approvals UL/cUL (Class 1 Div. 2); CE, ATEX (Category 3, Zone 2), RoHS; DFARS; CB Scheme
Warranty Lifetime
 
Type - + Range
B Red Gray +42 °C to +1,820 °C
E Red Purple -270 °C to +1,000 °C
J Red White -210 °C to +1,200 °C
K Red Yellow -270 °C to +1,372 °C
N Red Orange -270 °C to +1,300 °C
R,S Red Black -50 °C to +1,768 °C
T Red Blue -270 °C to +400 °C

2240

groov Analog Thermocouple/Millivolt Input Module Data Sheet

The groov® analog thermocouple/millivolt input module is part of Opto 22's groov EPIC® System. This document includes descriptions, specifications, and wiring and dimensional diagrams for the thermocouple/millivolt input module.

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2261

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.

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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.

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GRV-ITMI-8 Module Firmware

This download contains current firmware for the GRV-ITMI-8 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: 1.2d

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Demo: Accuracy vs Resolution

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