CALIBRATION MENU
The calibration menu is accessed by pressing the MNU
pushbutton (main screen), pressing CAL, and then entering the
correct password (if the password is enabled). The calibration
menu choices are as follows:
SCL
– Calibrate the scale
OUT
– Calibrate/test the analog outputs
DIAG
– View the raw mV/V scale values and view/enter the zero and span values.
ESC
– Exit to then main menu.
CALIBRATING THE SCALES (CALIBRATION MENU: SCL)
The user can calibrate the scale using the set of screens shown below. All operational modes
(one through five) can calibrate the scale using the hidden gross adjustment function, but
these set of screens allow the user to zero any amount of weight; the main-screen gross zero
pushbutton (ZRO) has a limit on the amount of weight that can be zeroed.
While in the calibration menu, press SCL. If more than one
channel is enabled, the calibrate scale select screen is displayed.
If the user doesn’t select a scale within five seconds, the display
returns to the calibration menu. If scale four is not enabled, the CH4 pushbutton (PB4) is
reassigned as an escape (ESC) back to the calibration menu.
After a channel is selected for calibration, the zero/span
calibration screen is displayed. The “GR” text flashes to indicate
that the user can adjust the displayed weight. The user can zero
any weight on the scale by pressing the ZERO pushbutton.
The user should remove all weight from the scale before zeroing the scale.
The user should now place a known weight on the scale, allow
some time for the weight reading to stabilize, and then press the
SPAN pushbutton. The weight adjustment (span) screen will be
displayed. Use the UP and DOWN arrow pushbuttons to set to correct weight. Note: The
weight display is dynamic, so adding or removing weight from the scale will change the
displayed value and this includes a user-adjusted weight value. After the correct weight has
been set, press the ENT pushbutton to enter the new weight value.
The new scale calibration values are stored in EEPROM permanently when the user presses
the ESC pushbutton in the ZERO/SPAN scale calibration screen.
CALIBRATION MENU
SCL OUT DIAG ESC
CALIBRATE SCALE
CH1 CH2 CH3 CH4
1:GR 0.0 lb
ZERO SPAN ESC
1:GR 418.4 lb
UP DOWN ENT