NOVUS n1500lc - Manual (Page 5)

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6 SPECIAL FUNCTIONS
6.1 SPECIAL FUNCTION KEY AND DIGITAL INPUT
The key (special function key) in the frontal panel of the controller as well as the Digital Input
may be assigned different functions that will be chosen by the user during the setup: These functions
can be chosen independently, both for the
key and the Digital Input. The key and Digital
Input functions are explained below.
6.1.1 kold – Freeze measured value
The hold function freezes the measured value showed in the display. Each time the key or the
Digital Input is selected, there is a change from hold to normal mode.
Whenever the indicator is in the hold mode, the message “koLd” will be displayed so that the
operator will be aware that the value displayed is the frozen value and not the current reading.
6.1.2 Pkold – Maximum value
The indicator will automatically work in the Peak Hold mode whenever the key or the Digital
Input are programmed as “PkoLd”.
While in this operation mode the indicator always shows the maximum value measured, since the last
time the
key or the Digital Input were pressed.
Each activation of the key or digital input triggers a new Peak Hold cycle and the display resets
with a new peak value.
6.1.3 xi – Displays Maximum
Displays the maximum (High) value the indicator measured since the last reset.
6.1.4 Lo – Displays Minimum
Displays the minimum (Low) value the indicator measured since the last reset.
6.1.5 rESEt - Clears Maximum and Minimum
If this “rESEt” function is programmed, every touch of the key or Digital Input activation clears
the memory and a new cycle of maximum and minimum values memorization will start.
6.1.6 zero – Zero Function
Available only for the key. It resets the scale. This function is used to eliminate the influence of
interference or small deviations in the zero of a scale. Reset is only accomplished if the value shown
in the scale is within 2% of the end of scale. Zero is not lost if the scale is turned off.
6.1.7 tarE – Tare function
It is available only in the Digital Input configuration or through the key. It changes indication to
zero (0000.0), regardless of the value applied to the input. It is used to eliminate indications of defined
values. In order to eliminate the tare, the user must press the
key.
6.2 AND KEYS
The same Tare function available for the Digital Input can be quickly applied by using the key,
which does not need to be set up. The key is used to eliminate the tare applied.
The indicator accepts successive tares provided that the input signal (gross weight) does not exceed
the equipment end of scale.
6.3 POWER SUPPLY FOR LOAD CELLS (10 VDC)
N1500LC provides a 10 Vdc (or 5 Vdc) output to excite load cells. This power supply capacity is 50
mA.