Intrinsically Safe Self Contained Sensor

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  • Intrinsically Safe
  • UL Listed
  • Input Voltage 16-30 VDC
  • Reverse Polarity Protected
  • Analog Voltage Output
  • Short Circuit Protect
  • Sync/Enable Input Line
  • Various Sensing Ranges
  • Wide Temperature Range
  • Temperature Compensation
  • LED Indicator
  • Self Contained Sensor
  • Chemical Resistance (PVC)
  • Quick Disconnect Connector

The RPS-409A-IS is an intrinsically safe, analog ultrasonic sensor. It is a self-contained sensor in a 30mm PVC barrel housing. It is powered by 16-30VDC with reverse polarity protection. It also has a narrow beam angle, which enables it to get into tight places. A flat target can tilt up to 10 degrees and still be detected.

The RPS-409A-IS has a short circuit protected analog 0-10VDC output. Example using the RPS-409A-80-IS: The output is a linear .125 volts per inch. Therefore a target placed 10 inches from the sensor will result in an output of 1.25 volts. Likewise a target placed 80 inches from the sensor will result in an output of 10 volts.

The RPS-409A-IS has built in temperature compensation to provide accurate readings throughout the entire operating temperature range.

An LED indicator is provided. The LED is green when not detecting and changes to red when a target moves into place. The sensor is completely sealed and the connection is made by way of IP and NEMA rated cables.

Besides the input and output lines there is a sync/enable line. This can be used for connecting multiple sensors together to prevent cross-talk, or to trigger the sensor at a particular time.

The RPS-409A-IS 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.

If a set point or set points are required in the application, look up the Migatron SPC-701, SPC-704, or M-1000 control products. Both the SPC-704 and M-1000 can also provide excitation power to drive the sensor.

Model Number Sensor Range Transducer Frequency Response Time Volts Per Inch
RPS-409A-40-IS 4″ to 40″ 150kHz 85ms .250
RPS-409A-80-IS 6″ to 80″ 150kHz 85ms .125
RPS-409A-144-IS* 12″ to 144″ 70kHz 85ms .069
RPS-409A-216-IS* 12″ to 216″ 70kHz 120ms .046
* Preliminary – Consult factory for availability

Specifications : RPS-409A-IS
Power Input 16 – 30VDC Reverse Polarity Protected
Input Current: 24mA maximum with 24VDC applied to the barrier
-40° to 60°C (-40° to 140°F)
Humidity: 0% – 95% Non-Condensing
Housing: PVC Housing with a PVC sensing face
Output: Analog Voltage Output 0-10V
(Load 100k Ohms to infinity)
Short Circuit Protected
Weight: Sensor only 4 ounces

Mounting Consideration
The performance of this sensor can be influenced by direct metal contact. This zone is 12mm/.50″ measured from the sensor face. See “DIMENSIONS” drawing.

UL listed intrinsically safe for use in hazardous (classified) locations when used with approved intrinsically safe barriers.
Class I Division 1 Groups A, B, C, and D
Class II Division 1 Groups E, F, and G
Class III Division 1
RPS-409A-40-IS 4″ to 40″ 0 – 10 VDC Analog Output
RPS-409A-80-IS 6 ” to 80″ 0 – 10 VDC Analog Output
RPS-409A-144-IS* 12″ to 144″ 0 – 10 VDC Analog Output
RPS-409A-216-IS* 12″ to 216″ 0 – 10 VDC Analog Output
* Preliminary – Consult factory for availability.
F32-5496302 6′ Cable 4-PIN, IP68 / NEMA-6P, 18 AWG
F32-5496305 16′ Cable 4-PIN, IP68 / NEMA-6P, 18 AWG
F33-5007728 Power Safety Barrier
F33-5007764 Analog Output & Sync / Enable Safety Barrier