Load cells manufacturer and supplier Loadtech’s recently launched LT1320, which is a precision digital indicator for belt weighing applications.

The unit takes the weight and speed information from a belt conveyor system and accurately calculates the rate and total of material transfer. The bright 6-digit 7-segment 20mm light-emitting diode (LED) display and the sunlight-readable graphic liquid crystal display (LCD) make for easy setup and readability.

A simple menu system allows for easy configuration of display and belt weighing settings.

Loadcell calibration can be done directly from the calibration certificate or by using dynamic calibration of the belt conveyor system. The LT1320 also provides an internal jumper selectable power supply for powering an encoder/tacho-generator and a pulse counting digital input to measure the speed of the belt conveyor system.

A universal mains switch-mode power supply is provided as standard but an optional low voltage isolated power supply can be installed.

The LT1320 contains precision front-end circuitry for high accuracy and stability. The ratiometric ADC circuitry automatically compensates for temperature drift and excitation voltage variances due to cable loss. The load cell excitation voltage is 5VDC and can interface with both 4- and 6-wire loadcells.

Recommended standard voltage 232 and 485 communications are supplied as standard with the modbus remote terminal unit and modbus American Standard Code for InformationInterchange (ASCII) protocol. A simple ASCII out protocol is also provided for serial printing and communicating to large displays.

The LT1320 has circuitry to generate a precision 0/4-20mA or 0-10V analog output signal and also includes advanced features such as a totaliser, dynamic tare function, auto-zero tracking, user input linearisation, programmable front push buttons, programmable digital inputs, security menu lockout, dead band adjustment, advanced digital filtering and dynamic calibration, all in one precision belt weighing indicator.