Indigo 500 Series Transmitter

for smart probes

The Vaisala Indigo 520 transmitter with dual-probe and multi-parameter support is a host device for Vaisala Indigo-compatible, stand-alone smart probes. The transmitter offers many additional features to the Indigo probes. 

The touchscreen display provides local data visualization and easy access to probe configuration. The transmitter also extends the options for connectivity, supply voltage and wiring, compared to using just a smart probe. It also provides mechanical support when wall-mount probe installation is preferred.​ Rugged IP66- and NEMA4-rated  metal enclosure ensures reliable performance even in the harshest conditions.

The Indigo 520 transmitter can accommodate up to two probes simultaneously. The plug-and-play probes are easy to install and remove for calibration.

Key Benefits

Touchscreen gives easy access to probe data

Intuitive touchscreen provides local data visualization. It also enables access to probe configuration.

Two simultaneous measurements

Dual-probe support allows simultaneous measurements with two Vaisala Indigo-compatible probes for humidity, temperature, dew point temperature, carbon dioxide, hydrogen peroxide, and moisture in oil measurements.

Rugged design with metal enclosure

A metal enclosure with IP66 and NEMA4 classification makes Indigo 520 suitable even for the harshest conditions. The touchscreen is made of chemically strengthened glass, making it robust even in demanding industrial applications.

Analog and digital outputs

The 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. Digital output protocol is Modbus TCP/IP over Ethernet. Besides ModBus TCP/IP, the transmitter's Ethernet connection provides a web interface and cyber-security that meets the modern standards.

Extended power supply options

Indigo 520 extends also the power supply options of the Indigo-compatible measurement probes. Multiple power supply options are available:
• Protected extra-low voltage (PELV) version: 15 … 35 VDC, 24 VAC ±20%
• Main power version: 100 … 240 VAC 50/60 Hz
• Power over Ethernet (PoE) version: 50 VAC PoE+

Time-savings and reduced downtime with plug-and-play design

Plug-and-play Indigo-compatible probes are easy to attach, ensuring fast installation. Probes can be attached into the transmitter by using a connection cable, which allows up to a 30-meter distance between the probe and the transmitter.

The plug-and-play design also allows easy swapping of the probes, when calibration or maintenance is needed. This saves time and reduces downtime.

Insight PC-Software for easy access to Indigo compatible probes

Insight PC Software gives quick access to the configurations and data of the Indigo family measurement probes:

  • humidity measurement smart probes HMP3 for general purpose applications with an exchangeable sensor, HMP4 for high pressures, HMP5 for high temperatures, HMP7 for high humidity, HMP8 for pressurized processes and HMP9 for rapidly changing environments
  • dew point measurement smart probes DMP5 for high temperatures, DMP6 for very high temperatures, DMP7 for remote installations in tight spaces, and DMP8 for pressurized pipelines
  • moisture in oil probe MMP8 for continuous online measurement
  • carbon dioxide measurement smart probes GMP251 for %-level data and GMP252 for ppm-level data
  • temperature measurement smart probe TMP1
  • vaporized hydrogen peroxide, humidity and temperature measurement smart probe series HPP270 for easy validation of H2O2 bio-decontamination.

    Insight PC Software is available in English and Japanese languages and it operates on 64-bit Windows 7, Windows 8.1 and Windows 10 systems.

Indigo compatible probes are self-contained, interchangeable smart measurement probes. The probes can be detached from the process and connected to a PC with an USB cable for set-up and field calibration. Insight utility software makes changing the settings and calibrating the device easy with intuitive graphical user interface; just launch the software and connect the USB cable. Up to six devices can be connected simultaneously.

Click here to get to the product overview of the Indigo520

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