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Calibration Methods

 
There are two methods for calibrating the module.
You will require a load to carry out calibration. This load must follow the web path for the input angle and output angle otherwise accuracy will be compromised
Calibration of the module using the keypad
 
·     Mode 1 – On board keypad - See Commissioning by keypad
 
By default the module is supplied in keypad mode.
 
Adjustment for zeroing the dead weight and calibration to the required load is carried out by using the two keys located on the front of the housing.
The procedure involves selection of the calibration channel(s) then either the zero offset [Zero], calibration [Cal] or proportional calibration [Prop].
 
Once confirmation of the selected function is made the module will indicate whether to unload or load the sensing roller before carrying out the required function.
 
Calibration of the module using the software and PC
 
·     Mode 2 – Using RS 485 and PC
See Commissioning by using the DCA-10 Configuration Manager Program
[TTS Systems can supply an approved USB to RS485 converter interface]
 
Mode 2 provides a richer experience as the program also provides data logging and diagnostic functions
 
It is permissible to switch to software mode on existing installations without re-calibrating the amplifier
 
Selection of Modes
 
Note: The module is supplied in keypad mode as a default. If you wish to use the RS 485 mode the following procedure is required.
 
·     Switch off power to the module
 
·     Pressing the “UP“ and “ENTER“ keys simultaneously on power up will place the module in the RS 485 serial link mode.
 
·     The LED RS485 would illuminate to confirm the module is in communication mode.
 
·     The remaining LED’s will display the bus address in binary format.
 
·     The required address can now be selected by using the keypad  “UP“ and “ENTER“ keys. The “ENTER“ key has the function as “DOWN“.
 
·     To save the address you have to keep pressed the last used key and at the same time press the second key.
 
To revert back to keypad mode the bus address 0 has to be entered.
 
Attention!
 
If an address other than zero (0) is selected it is not possible to carry out the calibration via the keypad.
 
  • The LED RS485 being permanently lit shows the amplifier is in RS485 operational mode.
 
Most DCA-10's supplied by TTS will work with this software - only a relative few very early models will not function