INDIGO520 FOR PROCESS REFRACTOMETERS

Indigo520 for process refractometers

Product Overview

The Vaisala Indigo520 is a versatile industrial-grade transmitter designed to connect and control Vaisala Polaris™ PR53 series process refractometers and other compatible Indigo measurement probes. With support for simultaneous dual-probe connections, the Indigo520 provides accurate and stable measurements for industrial applications requiring real-time monitoring of liquid concentrations and environmental parameters.

Technical Specifications

• Probe Compatibility: Supports simultaneous connection of 2 Indigo-compatible probes

• Analog Outputs: 4 configurable channels (not available with PoE)

• Analog Input: 1 two-wire current input (not available with PoE)

• Relays: 2 configurable relays (not available with PoE)

• Digital Communication: Modbus TCP/IP

• Power Supply Options:

  • 15–35 V DC

  • 24 V AC ±20%

  • 100–240 V AC 50/60 Hz

  • Power over Ethernet (PoE) IEEE 802.3at

• Display: Optional 5-inch touchscreen or LED status indicator (no screen)

• Enclosure Material: Die-cast aluminum AlSi10Mg, corrosion-resistant, IP66/IP67 rated

• Dimensions: 142 × 182 × 67 mm

• Weight: 1.5 kg

• Operating Temperature:

  • –40°C to +60°C (without display)

  • –25°C to +55°C (with display)

Key Features

• Supports dual Indigo probes for multi-parameter monitoring such as liquid concentration, temperature, humidity, CO₂, H₂O₂, and moisture in oil.

• Offers a web interface, optional touchscreen display, and cloud integration via Vaisala platform for remote monitoring and management.

• Internal non-volatile memory securely stores measurement data for up to 10 years (based on 24-hour recording intervals).

• Built-in control for refractometer prism cleaning systems with smart wash programs and customizable wash sequences.

• Allows switching between different concentration curves and adjusting measurement parameters to match various liquids in the same process line.

Benefits

• Enhanced Operational Efficiency: Real-time data and control capabilities improve process optimization and minimize downtime.

• Cost-Effective: Multi-device support and compatibility with various communication protocols reduce hardware investment and simplify system architecture.

• High Reliability: Rugged design with corrosion-resistant housing and wide temperature tolerance ensures long-term dependable performance.

• Seamless Integration: Compatible with multiple communication protocols and power sources, enabling easy integration into existing automation systems.

Applications

• Pulp and Paper Industry: Monitors liquid concentration and controls refractometer prism cleaning in paper production processes.

• Chemical and Oil & Gas Industries: Measures solution concentration and environmental conditions in chemical and refining applications.

• Food and Beverage Industry: Ensures product quality through precise monitoring of concentration and environmental parameters.

• Pharmaceutical Industry: Maintains compliance with quality and safety standards by monitoring critical environmental conditions.

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Reference link: https://www.vaisala.com/en/products/polaris/indigo520-for-process-refractometers