30-34-00-618a 25.07.06
QS / Eggers
3
Recalibration
In order to compensate for linear measuring errors of the scale, which can, for instance, occur as a
result of the different forces of gravity at different geographical points, the module has a recalibration
function. To initiate the function, another button must be pressed when the scale is started. The
verification counter is then displayed which is incremented whenever the scale is recalibrated. It
enables the user to check whether the scale was manipulated. If, within five seconds, the button is
pressed longer than 1.5 s, the scale switches to recalibration mode. The scale now measures the
zeropoint and waits to be loaded with at least ¼ of the maximum load. By briefly pressing the button
the weight displayed can be decremented or incremented in steps of 10g until the weight of the load
placed on the scale is reached. The direction can be changed by pressing the button longer. To stop
recalibration the button must be pressed longer than 5s. The scale can be switched off any time using
the on/off button or by not actuating it for a while, thus aborting recalibration.
Optional functions
The functions “Tare“, “Hold“, “Autohold“ and “Replace weight in repeat measurements” and various
menu functions can be implemented via a program on the EEPROM (on the weight measuring
module). The functions are explained below:
Tare:
The tare function can be assigned to a button by the EEPROM program. If the button is pressed, the
weight is tared out as soon as the display has settled, if it is within the permissible range. Pressing the
button again alternatively switches the tare function off or causes the weight to be tared out again.
Hold and Autohold:
If the hold function is assigned to a button by means of the EEPROM, the weight reading is held on
display when the button is pressed as soon as the value has stabilized. Alternatively, the hold function
can be automated so that the weight will always be frozen when it has exceeded a certain threshold
and is stable.
The hold function is switched off after expiry of a predetermined time or by pressing the button again.
In addition the scale can be configured so that the hold function will be deactivated when the scale is
relieved, when the scale is relieved and then loaded again and / or when the load on the scale changes
significantly.
Replace weight in repeat measurements:
The scale can be configured so that the weight last displayed is displayed again in a measurement
when the scale detects that it has been loaded with almost the same weight.
Menu functions:
Not all the functions listed below can be activated on the same scale.
When the menu button is pressed long enough, the scale switches to the setting mode. Here, damping
and weight display settings can be made.
When the button is pressed briefly, the scale switches to function mode. The following functions are
possible:
• BMI: From weight and height the body mass index is calculated using the following formula
BMI weight kg length m= [ ]/ [ ]
2
BMI = weight [kg] / height [m]
2
.
• IDE: The deviation from the ideal weight calculated using the formula
09 100, ( [ ]
× -length cm 0.9 (height[cm] - 100) is displayed.
• UL: When a limit weight is overshot or undershot an acoustic signal is generated.
• DIFF: The difference to a second weight is output. The second weight can have been measured
using the autohold function, entered manually or stored when the difference function was last
called.
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