LCA1

Load cell amplifier for dynamometer controller

The LCA1 load cell amplifier is designed to provide highly precise amplification of load cell signal for use with dyno controllers. Gain is adjusted to allow 20% load cell overload without clipping with 2mV/V load cell and DC1 controller. The amplifier is enclosed in a standard DIN rail enclosure.
Amplifier with custom gain is available upon request. For example, for 3mV/V load cell.

Power supply4V ÷ 13V DC
Maximum power consumption
with 350Ohm load cell
1.7W
Zero load output voltageREF + 2.5V
Load cell excitation voltage10V
Excitation output current capacity0.1A
Signal output impedance100Ohm
Signal output voltage swing1.2V ÷ 8.8V
Load cell signal amplification106
(50÷1000 adjustable version available upon request)
Environment temperature range−20°C ÷ 50°C
Operating humidity0%-95% without condensation

Pinout

VINPositive power supply input
OUTAmplified signal output
REFOutput signal reference ground. Connect to controller ground. For maximum accuracy, don’t share wire with power supply ground.
GNDPower supply ground
GNDGround terminal for load cell cable shield connection
V-Load cell excitation –
S-Load cell signal –
S+Load cell signal +
V+Load cell excitation +
Load cell amplifier wiring diagram