Superprox Model SM906A-8 Series 30-mm analog sensors combine short deadband and a long span in a small package. The devices monitor the distance to an object or level while generating a proportional analog output relative to two analog span limits over a sensing span of 203 mm to 7.6 m.

The 8-in. deadband eliminates the need to mount the unit at great distances from the object. With a 30-mm diameter and housing length of 118 mm, the units can be mounted in tank covers and other tight spaces. Factory configurable for specific analog sensing applications, the devices can be specified for either a 0-10 Vdc or 4-20 mA output that is directly or inversely proportional, and an output state for loss of echo and power up. Response times, including a standard 250 msec and minimum 150 msec, are available along with functionality selections involving foreground and background suppression.

With a 75 kHz frequency, the units' 20-degree beam is useful in controlling the levels of liquids, solids, and granules over long spans in applications involving ingredient blending such as food and beverage processing, pharmaceuticals, and water and sewage treatment. An epoxy transducer face allows the fully encapsulated device to perform in a wide range of harsh environments. For outdoor analog-sensing applications, temperature compensation ranges from -10° to +60°C.