DFW series indicators DFW_03_12.07_EN_U
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9. BASIC FUNCTIONS
9.1 ZERO SCALE
By pressing the ZERO key, it is possible to zero a gross weight value which is within +/- 2% of the capacity; after the
zeroing, the display shows 0 weight and the relative pilot lights are turned on.
9.2 TARE OPERATIONS
SEMI-AUTOMATIC TARE
By pressing the TARE key any weight value present on the display is tared: the display shows “tArE” for an instant and
then 0 (net weight); the pilot lights turn on.
NOTE: The semiautomatic tare will be acquire only if the weight is AT LEAST A DIVISION, STABLE (instability ~
led off)
and VALID (in other words, the OVERLOAD condition must not be created).
ENTERING THE MANUAL TARE FROM KEYBOARD
- With the 5-key indicator:
Press TARE for a few seconds: the display shows “– tM –“ and then "000000". Enter the desired value using the
following keys:
ZERO decreases the blinking digit.
TARE increases the blinking digit.
MODE selects the digit to be modified (blinking); the scrolling of the digits takes place from left to right.
C if pressed for an instant it quickly zeros the present value; if pressed at length it allows to return to
weighing without saving the changes made.
Confirm with the ENTER/PRINT key; the value will be subtracted from the weight present on the plate and the
relative pilot lights will turn on.
- With the 17-key indicator:
1. type in the desired value through the numeric keys (depending on the model, press “i” or “.” to enter the
decimal point).
NOTE: In the MASTER press the numeric 0 key and digit the desired value through the numeric keys.
2. confirm with TARE key.
NOTE: If the entered value is not a multiple of the scale’s minimum division, it will be rounded off.
CANCELLING A TARE
One can manually cancel the tare value in different ways:
- unload the scale and press the TARE (only if the net weight is equal to zero and not negative) or ZERO key.
- carry out the tares in subtraction, partially unloading the scale and, and press TARE to zero the display.
- press C without unloading the scale.
- enter a manual tare equal to 0.
NOTE: it is possible to automatically cancel the tare value; see the following section.
LOCKED/UNLOCKED/DISABLED TARE SELECTION
Normally, when a tare value is entered (automatic, manual, or from storage) by unloading the scale plate, the display
shows the tare value with a negative sign (LOCKED TARE). For one’s convenience it is also possible to choose that the
tare value cancels itself automatically each time that the scale is unloaded (UNLOCKED TARE); or disable the tare
functions.
With the UNLOCKED tare:
In case of SEMIAUTOMATIC TARE the net weight, before unloading the scale, may also be 0.
In case of MANUAL TARE or FROM DATABASE the net weight before unloading the scale must be greater than 2
divisions and stable.
To set the type of tare:
-
Turn on the indicator, press the TARE while the firmware version is displayed (the display shows the “tyPE” menu).
- Press ZERO many times (to scroll ahead through the parameters) or TARE (to scroll backwards) until one finds the
“F.ModE” parameter.
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