EVO 1650— Smart Core

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Overview

EVO 1650

For terminal operators, field engineers, plant supervisors, inventory managers, and safety officers who need safe, ground-level access to tank-gauge data, configuration, and calibration, the evo 1650 Smart Core Display provides a reliable, intrinsically safe interface for all L&J/Cognesense radar and servo gauging systems.
Unlike conventional remote indicators, the evo 1650 integrates directly with EVO Series radar gauges and MCG servo gauges, enabling local display, setup, and diagnostics without climbing tanks or opening explosion-proof enclosures. A graphical LCD interface, infrared programming using the MCG 2150 handheld calibrator, and multi-protocol communication make commissioning and troubleshooting faster and safer.
Built as a microprocessor-based smart terminal, the evo 1650 supports RTDs, 4–20 mA analog inputs, discrete I/O, and Tankway/HART/Modbus/RS-485 communications. With a rugged NEMA 4X/IP65 housing and global hazardous-area approvals, it delivers long-term reliability in refineries, terminals, and industrial storage facilities—improving safety, reducing technician workload, and simplifying automation.
MCG 1200M — Analog/Digital Transmitter

Features

Ground-Level Calibration

Ground-Level Safety & Access

Operators perform calibration, configuration, and diagnostics at grade level—eliminating tank climbs and reducing exposure to vapors and confined spaces.

Comprehensive Visualization

Graphical LCD Interface

High-resolution 128×64 graphical display provides clear visibility of level, temperature, alarms, and diagnostic information.

Non-Intrusive IR Calibration

Infrared Wireless Programming

Supports non-intrusive IR programming with the MCG 2150 calibrator, preserving enclosure integrity and hazardous-area certifications.

Multi-Protocol Support

Multi-Protocol Integration

Communicates via Tankway, Modbus, HART, and RS-485 for seamless connection to SCADA, DCS, and inventory systems.

Analog-to-Digital Conversion

Flexible Analog & Digital I/O

Accepts 4–20 mA inputs, discrete signals, and temperature probes—including spot RTDs and averaged temperature via the MCG 2350.

Smart Flash Technology

Smart Flash Technology

Allows firmware and protocol updates in the field without removing the unit from service.

Hazardous Service Ready

Hazardous-Area Reliability

Certified for Class I, Div. 1, ATEX, and IECEx environments, with a NEMA 4X/IP65 enclosure for harsh outdoor use.

Details

Typical Applications

  • Tank Calibration: Supports safe, wireless IR calibration from ground level—critical for tanks where manual access is hazardous.
  • Operations Monitoring: Displays real-time level, temperature, alarms, and gauge status locally for quick operator verification.
  • Maintenance & Diagnostics: Advanced diagnostic screens and event logs allow technicians to troubleshoot wiring, communication, and sensor issues within minutes.
  • Retrofit Upgrades: Replaces outdated remote indicators while maintaining compatibility with EVO radar gauges, MCG servo gauges, and legacy Tankway systems.
  • Tank Farm Automation: Combines display, power distribution, and communications in one enclosure, lowering installation costs for automation upgrades.
  • Temperature Monitoring: Supports both direct RTD inputs and average temperature systems, providing accurate thermal data at the tank.

Technical Specifications & Key Features

Table Header Table Header
Display
  • 128 × 64 graphical LCD with backlight
  • Multi-parameter display (level, temperature, status, alarms)
Communication Protocols
  • Tankway
  • Modbus RS-485 (2-wire / 4-wire)
  • HART
  • RS-232
  • Optional WirelessHART
Inputs
  • Up to two 4–20 mA inputs
  • 3-wire RTD inputs (copper or platinum)
  • Averaged temperature input via MCG 2350
  • Up to two discrete inputs
Outputs
  • Up to two 4–20 mA outputs
  • Optional relay outputs (0, 2, or 4 relays)
Power Supply
12–70 VDC operating range
Environmental Ratings
  • NEMA 4X / IP65 / IP68 enclosure
  • Operating temperature: –40 °F to +185 °F (–40 °C to +85 °C)
Hazardous-Area Certifications
  • FM/CSA Class I, Division 1
  • ATEX II 2G Ex d IIB
  • IECEx Ex db IIC Gb
Compatibility
  • EVO Radar Gauges (evo 1500/1600/1610/2600 series)
  • MCG Servo Gauges (1500SFI, 2000MAX)
  • MCG 300/350/351 RTD & MCG 2350 ATP systems
  • 4–20 mA level/pressure transmitters

Documents and Downloads

Product Flyer

Have a look at the flyer to get all the tech specs and product features. Brochure

User Manual

Read the manual for detailed information and instructions. Manual

Calibrations

Check out a sample cert from our calibration lab. Certificate

Contact Support

If you have a question that we have not covered then just get in touch and we’ll be happy to help.

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FAQs

We have tried to answer the most common questions we are asked here.

The MCG 1650 drastically improves safety by enabling all gauge calibration and configuration to be performed using a wireless infrared remote from ground level. This eliminates the need for technicians to climb tanks or open explosion-proof housings, which are major safety risks in hazardous industrial environments.
Yes. The MCG 1650 Smart Core Display is designed for maximum compatibility and can interface directly with L&J’s entire evo Radar Series and MCG Servo Gauges. This universal compatibility reduces the number of spare parts and training required for your field personnel.
The display supports all common industrial protocols, including L&J Tankway, HART, and Modbus RS-485. This multi-protocol capability ensures that the data collected at the ground-level interface can be easily connected and communicated to your central DCS or inventory management system.
Yes. It has FM/CSA, ATEX, and IECEx certifications for operation in Class I, Div. 1 hazardous areas.
Yes. Its protocol flexibility and analog/digital I/O allow drop-in modernization of older L&J or third-party systems.
Yes. With the MCG 2150 calibrator, operators perform full configuration and calibration wirelessly without opening enclosures.
Yes, Smart Flash enables firmware updates “on the fly” without removing power or disconnecting the device.
Level, temperature, alarms, density (via paired gauge), discrete I/O status, and full diagnostic data depending on system configuration.