Online DCA-10 Manual


DCA-10 Twin Channel Amplifier for Strain Gauges
The module DCA-10 have been developed to allow connection to strain gauges that are configured as a full bridge resistive network. The module is typically used with load cells / transducers in web tension applications.  
Calibration of the tare and span is performed by microprocessors. The unit has several analogue output signals producing 0...10V for both indication and control functions. The excitation voltage for the measuring elements is also provided and is fixed at 10V.  The input range per load cell to the amplifier is between 2mV to 25mV.
Two load cells can be connected to each amplifier separately to provide independent individual outputs or when used as a pair they provide an average value.  The power supply to the unit is 24V DC.
The amplifiers are modular units and can be mounted onto a DIN rail, type TS35.
Special features:
·     Automatic zeroing
·     Automatic calibration to rating
·     Proportional calibration by applying a fraction of the full scale load
·     Three measuring ranges to increase the range of low forces without the need for recalibration
·     Dampened outputs for connection to measuring devices
·     Optional operation via keys or RS 485 serial link - TTS recommend operating in this mode to take advantage of the advanced features
The following load cell connection modes of operation are possible:
·     Two load cells on one sensing roll to give a separate signal for channel A and channel B plus the average A+B signal. 
·     Separate independent load cells on individual rolls to give isolated signals for both channel A and  channel B (do not use A+B outputs in this mode)