Vaisala's New Indigo 202: Easy-to-Use Transmitter for Smart Probes

Vaisala launches a new, digital transmitter to be used with Vaisala's smart probes. The Indigo 202 is a new product in the Indigo series, which extends the range of Vaisala's Indigo-compatible probes. With an analog output version already on the market, now the Indigo 202 has a digital Modbus RTU output. These devices can be used with intelligent GMP251 and GMP252 carbon dioxide probes; the range of probes will be expanded going forward.

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The next new Indigo-compatible probe will be the HPP272 probe for vaporized hydrogen peroxide, humidity, and temperature measurement, scheduled for availability in the fall of 2017.

The GMP251 and GMP252 carbon dioxide probes are designed for harsh and humid environments. They are used in life science incubators, greenhouses, cold storages, and in demanding HVAC applications, such as livestock buildings.

One growing area of applying carbon dioxide measurements is the use of carbon dioxide in cooling and refrigeration systems, as carbon dioxide is more environmentally friendly than traditional, for example, Freon-based refrigerants.

- In these systems, the reliable measurement of carbon dioxide levels is important to ensure their safety to people, says Maria Uusimaa, Product Manager at Vaisala.

The new HPP272 probe for the measurement of vaporized hydrogen peroxide is accurate and exceptionally repeatable. Hydrogen peroxide is used extensively in the bio-decontamination of rooms, facilities, and equipment as well as sterilization applications in the pharmaceutical industry and healthcare. For example, isolators, treatment rooms in hospitals, ambulances, or even airplanes can be decontaminated with vaporized hydrogen peroxide.

The Indigo 200 series transmitters are intended for demanding conditions, as they are resistant to dust and most chemicals, and their smooth surface is easy to clean.

The transmitter has a wireless user interface for e.g. smartphones or other smart devices. Through this interface, it is possible to configure the transmitter's two relays, set the Modbus address, or change the display settings, among other things.

The Indigo 202 also helps to minimize downtime, as probes attached to it can be disconnected and changed into new ones, if needed. Instead of changing the probe, it can also be calibrated on site through the Indigo user interface, provided there is a calibration reference or a reference device available.

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Asset Management | 22.6.2017

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