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873M General Purpose

Introduction Specifications Product Selection Wiring Diagrams Approximate Dimensions Typical Response Curves Cordsets and Accessories
Click to enlarge - 873MS&MRA Combo2


Description

The 873M general purpose ultrasonic sensors are designed to detect solid or liquid targets by using sound waves. These sensors feature a compact 18 mm barrel that is only 40 mm long, with straight or right-angle sensing face options, providing enhanced flexibility for areas with limited space. Plus, the 873M offers higher-speed switching than other ultrasonic sensors in the portfolio and features an IP67 rating for harsh-duty environments.

The 873M sensing line is available with either analog or discrete outputs and two different sensing ranges. Analog models are offered with either a scalable 4…20 mA or 0…10V DC output. The discrete models feature complementary PNP outputs that can be set up as either a threshold or window. The outputs are selectable as normally open or normally closed. All models are taught remotely using pin two or an optional programming cable. These sensors have full electrical protections including short circuit, overload, false pulse, transient noise, and reverse polarity.

The 873M family is an excellent choice for applications including: roll diameter, height measurement, part counting, web tension, and level detection. Typical industries that could benefit from the 873M are packaging and assembly, material handling, and many manufacturing sites in general.


Features


LED Indicator

Discrete Sensors

Operating Mode Red LED Yellow LED Green LED
Teach Mode Target Detected One Flash Continuous Flash Off
No Target Detected Flashes Off
Target Marginal (invalid teach) Flashes
Standard Mode Target Present Off On On
Target Not Present Off
   

Analog Sensors

Operating Mode Red LED Yellow LED Green LED
Teach Mode Target Detected One Flash Continuous Flash Off
No Target Detected Flashes Off
Target Marginal (invalid teach)
Standard Mode Target Present Off On On
Target Not Present Off