The SmartBob AO level sensor features an integrated 4-20 mA analog output to a PLC for monitoring bin level measurement data. A simple push-button user interface built into the SmartBob AO circuitry is used to configure the settings for each SmartBob AO. To set up the SmartBob AO, the user opens the device to access the keypad and steps through a series of push-button settings to set the interval timer, units of measure, 4 mA and 20 mA drop distances, maximum drop distance, and the Relay 1 and 2 functions. Once setup is complete, measurement data is sent directly to a PLC, with all settings for the bin saved in the non-volatile memory of the SmartBob AO.


The SmartBob AO with built-in 4-20 mA output can easily replace any 4-20 device by simply installing the SmartBob on the top of the bin and wiring the sensor to the existing 4-20 input. When the SmartBob AO takes a measurement, it automatically transmits an updated analog signal containing the measurement data. The SmartBob AO can be programmed to initiate a measurement utilizing an internal timer to take readings at a predetermined time interval or an external start input can be used to take a measurement immediately, should one be needed. Two configurable relay outputs can be used to alert to measurement status or high, low or error alarms.

 

Features:
• Direct 4-20 mA analog output
• Alternative to using consoles or software
• Simple user interface to configure the sensor
• Measures bins automatically in timed intervals
• Two relays configurable with four different options
• Initiate measurements via interval timer or external start input
• Two current source options for supplying power to 4-20 current loop


Specifications:
• Power Requirements: 115/230 VAC 50/60 Hz
• Ambient Temp: -40°F to +185°F (-40°C to +85°C)
• Process Temp: Up to 500°F (260°C)
• Measurement Range: Up to 180’
• Measurement Rate: 2 feet per second
• Accuracy: ± 0.25% distance measurement accuracy
• Mounting: 3”- 8” NPT
• Enclosure: Molded polycarbonate
• Enclosure Type: NEMA 4X, 5, 9 & 12


Applications:
• Operations that prefer direct 4-20 mA analog output versus using the C-100 console or eBob software
• Rugged, simple, and dependable inventory measurement system for solid, liquid and slurry materials in vessels up to 180 feet
• Works in dusty and very demanding applications
• Vendor-managed inventory
• Plastics, chemicals, coal, concrete, food ingredients, pharmaceuticals, feed/grain, aggregates and many other materials

 

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Item #

Description

730-5154 N/A SBR AO 115 - Microprocessor-driven SmartBob2 AO remote sensor, 115 VAC, corrosion resistant polycarbonate enclosure with integrated 4-20 mA output. The SmartBob AO is a stand-alone analog transmitter that includes automatic measurement initiation and two configurable relay outputs.
730-5156 N/A SBR AO 230 - Microprocessor-driven SmartBob2 AO remote sensor, 230 VAC, corrosion resistant polycarbonate enclosure with integrated 4-20 mA output. The SmartBob AO is a stand-alone analog transmitter that includes automatic measurement initiation and two configurable relay outputs.
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