OverviewThe GRV-IV-24 is an analog voltage input module for the groov EPIC® system that provides high-resolution measurement across multiple selectable voltage ranges. It installs in a groov EPIC chassis and is intended for industrial monitoring and control applications where multiple channels and flexible input ranges are required.
Configurable input ranges- ±160.0 VDC
- ±80.0 VDC
- ±40.0 VDC
- ±20.0 VDC
- ±10.0 VDC
- ±5.0 VDC
- ±2.5 VDC
- ±1.25 VDC
Main features and functional elements- Designed for the groov EPIC® system: mounts in a groov EPIC chassis alongside a GRV-EPIC-PR1 processor and other I/O modules.
- 24 input channels; each channel can be configured to any of the eight input ranges. All channels share a common reference terminal.
- Module cover includes an LED status indicator and a touch-sensitive pad; touching the pad lets the groov EPIC processor display module information, specifications, and wiring diagram.
- High resolution: 20-bit range (1,048,576 counts) with accuracy ±0.1% of full scale.
- Analog and software data filtering: hardware filtering and software Simple Moving Average (SMA) or Weighted Average; SMA configurable where supported.
- Factory-tested and supplied with a lifetime warranty.
- Regulatory and safety compliance: UL/cUL listed; compliant with ATEX, Low Voltage, EMC CE, RoHS and UKCA directives.
- Suitable for OEMs, machine builders, process control, power and energy monitoring, predictive maintenance, remote installations (water/wastewater, oil & gas), SCADA, and IIoT applications.
Technical specifications- Model (commercial): GRV-IV-24
- Manufacturer / Brand: Opto 22
- Number of channels: 24
- Resolution: Range / 1,048,576 (20 bits)
- Accuracy: ±0.1% of full scale
- Input impedance (nominal): 9.7 MΩ
- Input filter (analog): -3 dB at 46 Hz
- Analog data filtering (hardware): -3 dB @ 2.4 Hz; -25 dB @ 60 Hz
- Software data filtering: Simple Moving Average (SMA) and Weighted Average (SMA: 1 to 32 readings or up to 4096 where supported)
- Data refresh time: 450 ms
- Step input response time: 450 ms × SMA value (example: 14.4 s at SMA = 32; default SMA = 4)
- Common-mode rejection: > -120 dB
- Max survivable input: 300 V
- Max operating common-mode voltage: 250 V
- Isolation (field-to-logic): 300 V working, 1500 V transient (1 minute)
- Isolation (channel-to-channel): 300 V between channel group 0–11 and group 12–23 (no per-channel isolation)
- Chassis power consumption: 1.0 W
- Wire size: 28–14 AWG
- Wire strip length: 0.315–0.354 in (8–9 mm)
- Torque, connector screw: 2.5 in-lb (0.28 N·m)
- Torque, hold-down screw: 3.5 in-lb (0.4 N·m)
- Operating temperature: -20 °C to +70 °C
- Storage temperature: -40 °C to +85 °C
- Relative humidity (non-condensing): 5–95%
- MTBF (minimum, 25 °C): 1.2 Mhrs
- Minimum groov EPIC firmware version required: 1.0.0
- Minimum PAC Project version: 10.0000
- Minimum library package for CODESYS version: 1.0.0.0
- Agency approvals: UL/cUL (Class 1, Div 2); CE: ATEX (Category 3, Zone 2) and RoHS; DFARS; CB Scheme; UKCA
- Warranty: Lifetime