Load cell is one in eight million
15 Jan 2000
Nobel's latest load cell transmitter, the AST3, boasts an internal resolution of 1 in 8 million (23bit) using a patented Sigma-Delta A/D conversion technique, and communicates on RS485 at 115k baud using modbus protocol.
There are no potentiometer adjustments because all scaling is carried out and stored digitally and can be carried out via the front panel keyboard or downloaded through the serial port using Windows-based software.
Filtering can be pre-programmed to suit the dynamics of the application, so for large weight changes it has a wide band width and fast response and shuts down to a narrow bandwidth for small changes.
The AST3 can also be connected via a modem to allow remote diagnostics and system maintenance. The unit comes with digital display and weighs 0.5kg.
