INDIGO520 Transmitter for POLARIS refractometers

Vaisala Indigo520 transmitter is an industrial-grade, robust transmitter that accommodates 1 or 2 Vaisala Indigo-compatible probes for various measurements, like concentration of liquids.

Analogue and digital interface

The Indigo520 transmitter has 4 analog channels that can be configured to mA or voltage type, and 2 configurable relays. Any of the output parameters from the connected probes can be assigned to control the analog channels and relays. The digital output protocol is Modbus TCP/IP over Ethernet. The Ethernet connection also provides a web interface and cybersecurity that meets modern standards.

Robust design

The transmitter has a wide operating temperature range, an IP66-rated corrosion-resistant metal enclosure, and an optional touchscreen display made of strengthened (IK08) glass. The transmitter withstands commonly used cleaning chemicals, such as isopropanol and liquid H2O2 (30 %), and performs even in the harshest conditions.

Compatible process refractometers

Polaris PR53AC, PR53AP, PR53GC, PR53GP, PR53M, PR53SD, PR53W