LS SERIES SERVICE MANUAL
ISSUE 4.0 FULL CONTROL CONSOLE DIAGNOSTICS 1
12. FULL CONTROL CONSOLE DIAGNOSTICS
12.1 General
The main use of the internal Engineer's Diagnostic Mode is to calibrate a loadcell or an
extensometer.
It is also required to reprogram the EEPROM on the Motor Drive PCB if this has been replaced
during servicing.
THE DIAGNOSTIC MODES ARE SPECIFICALLY FOR SERVICE ENGINEERS AND IT IS VERY
IMPORTANT THAT CUSTOMERS DO NOT USE OR ARE INFORMED OF THESE FEATURES.
WARNING
CARE MUST BE TAKEN to ensure that accidental damage does not occur to either the
mainframe, loadcell or calibration equipment when calibrating a loadcell.
12.2 Selecting the Internal Diagnostic Mode
The machine is set into the Internal Diagnostic mode by pressing the 3rd key from the left under
the LCD display when the Company Name is displayed, i.e. "Lloyd Instruments Ltd". The
screen will then request a password. Enter "2646 67" then press the ENTER key. Note that
the 6 key has to be pressed twice so a short delay has to be allowed between key presses.
When the machine is in diagnostic mode, the INITIAL DIAGNOSTIC display is shown below: -
Diagnostics
Load Motor
Cell Drive >
Select the required mode by pressing the soft key under the text. The Initial Diagnostic mode
screen is split into 3 main sections that contain the following functions: -
Motor Drive Setting the Machine Type
Load Cell Changing the Loadcell Value
Loadcell Verification and Calibration
Viewing Loadcell Overloads
To exit the diagnostic mode, repeatedly press the ENTER key until the machine returns to its
normal operating mode.
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