LB-199 Standalone Load Cell Amplifier

LB-199 Standalone Lload Cell Amplifier connects load cells to any standard analogue input

• Connect load cell to screw terminals
• Connect the amplifier pins to a potentiometer (analog) input of your controller
• Works with any controller standard analogue input (e.g., BU0836 series)

Ensure that the +5V and GND pins on the potentiometer side are connected correctly. Load cell is a passive device and wiring mistakes on that side will not damage the amplifier.

• Uni-directional (standard) version amplifies input signal of one polarity only
• Zero | negative input produces zero output
• Typical use is force-sensitive brake pedal, pressure sensor, weighing scales

Aircraft pedals require two load cells and two uni-directional amplifiers - one for each pedal.

Specification details

• Supply voltage (to +5V pin): 5V ± 20%
• Output range (on OUT pin): 0 to 4.9V
• Input range (on +IN/-IN terminals): 0 to +10mV (uni-directional version), -10mV to +10mV (bi-directional version)
• Specified load cell output: 1 to 3mV/V
• Specified load cell excitation voltage: 5V or higher
• Dimensions 25mm x 20mm

Actual excitation voltage is 5V and it is safe to use any load cell with excitation voltage higher than 5V - typical load cells have excitation voltage in 12V or 15V range.