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When the instrument is in the “Gross” operating mode (“NET” LED off) the DOWN key
, hold
down for few seconds, performs the gross weight resetting function.
ZERO SETTING
The reset command of the gross weight is used to correct for small zero shifts of the weighing system
during normal operation.
Normally these zero shifts are due to thermal drifts or to residues of material that accumulate on the
weighing system over the time.
To run the command, it is necessary for the instrument to be under “Gross” conditions (“NET” LED off)
and for the deviation of the weight with respect to the zero of the scale (the one performed with the
zero calibration procedure) does not exceed (in positive or negative) the number of divisions set in the
“0 BAND” parameter (within the PARAM menu).
The reset command of the gross weight is not executed if occurs even one of the following conditions:
• Unstable weight (with weight stability control enabled). In this case, the reset command takes effect
only if the weight stabilises within 3 seconds or if the the weight stability control is disabled (“MO-
TION “ parameter equal to zero).
• Gross weight greater (in positive or negative) than the number of divisions set in the “0 BAND”
parameter, when the auto-zero set-point is not programmed.
The zero obtained with the gross weight resetting operation is retained in memory even after the instru-
ment is turned off.
The gross weight reset operation can be repeated several times, but the number of divisions reset to
zero is added from time to time, so when the total exceeds the limit value set in parameter “0 BAND”,
zero setting can no longer be executed. In this case, it is necessary to calibrate the Zero.
Any automatic zero parameter setting when switching on (AUTO 0) reduces (or clears, in the case of
“AUTO 0”> “0 BAND”) the range of action of the reset command.
AUTO-TARE
Auto-tare is possible in the following conditions:
• Instrument in “Net” conditions (“NET” LED on)
• Positive gross weight.
• Gross weight not exceeding maximum capacity.
• Stable weight.
• Unstable weight. In this condition 2 cases must be distinguished:
1. The weight stability control is enabled (the “MOTION” parameter (*) must be other than zero): the
command executed while the weight is unstable only has an effect if the weight stabilizes within 3
seconds after the command was given.
2. The weight stability control is disabled (the “MOTION” parameter (*) is equal to zero): the executed
command takes effect immediately, even with unstable weight.
(*) The operating modes of the “MOTION” parameter are described in the relevant paragraph.
The auto-tare is retained in memory even after the instrument is turned off.
Summary of Contents for DAT11
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