Migatron’s second generation of intrinsically safe ultrasonic sensors are certified for use in Hazardous (Classified) Locations and Explosive Atmospheres. The RPS-409A-IS2 is one of the first sensors ever to receive an ANZEx certificate for use in Australia and New Zealand. It has also been certified in Europe, the United States, and Canada. These sensors can be used in hazardous gas or dust environments classified as Zone 0, 1, 2, 20, 21 or 22 for ANZEx/ATEX/IECEx and Class I, II or III for C-UL-US when used with approved intrinsic safety barrier(s). The RPS-409A-IS2 is completely sealed with an IP67 rating.

There is no calibration necessary, and no training required. Just apply power to the sensor and the output voltage will tell you precisely how far away the target is. For instance, the RPS-409A-40-IS2 measures distances in a range from 4 to 40 inches and produces 0.25 V for every inch between the sensor and the target. When the target is four inches away, the output voltage is 1.00 V. When the target is ten inches away, the output voltage is 2.50 V and so on. This relationship is linear throughout the range of the sensor, so it’s easy to translate output voltage into distance.

In addition to the analog voltage output line, each sensor also has a Sync/Tx line which can be used for connecting multiple sensors together to prevent cross talk (Sync), or to control when the sensor transmits (Tx).

The RPS-409A-IS2 is designed to take advantage of today’s PLC and computer analog input cards. The numerical values that are programmed into the PLC or computer will determine the zero and span of the sensor.

Each sensor is short-circuit protected for safety and has built-in temperature compensation to provide accurate readings throughout the entire operating temperature range.

An LED indicator, on the back of the sensor, is green when the sensor is not detecting a target and red when a target is detected.

No Training Required. The Intelligence is Built In.

Migatron’s 409A sensors are pre-calibrated from the factory and require no training. With a linear relationship between voltage output and distance to the target, it’s a very straight-forward process to program any PLC to interpret the results.

The RPS-409A-40-IS2, for instance, yields 0.25 volts per inch. So when the target is placed four inches from the sensor, the output is 1.00 V. When the target is ten inches from the sensor, the output is 2.50 V. At forty inches, the output is 10.00 V.

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