Keypad Functions - Cardinal 748 Technical/Operation Manual

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GROSS TARE
ON
G
ZERO GROSS
748 TIME
OFF
DATE
TEST
PRESET
figure no. 13 - keyboard layout
The membrane keyboard is not to be operated with pointed objects (pencils, pens,
fingernails, etc). Damage to keyboard resulting from this practice will NOT be covered
under warranty.
ON-ZERO KEY
ON
This key performs two (2) functions. Pressing it when the 748 is off will apply power to
ZERO
0 the instrument. Pressing it when the 748 is on will cause an immediate zeroing of the
weight display up to the selected limit of 4% or 100% of the scale's capacity. This
selection is made during the setup and calibration of the instrument.
OFF KEY
Pressing this key will turn the 748 off.
OFF
TEST KEY
The TEST key is used to conduct a test of all display elements. The test consists of six
TEST
(6) cycles, each lasting two (2) seconds:
1. All horizontal segments and the left 1/3 of the bar graph will turn on (no annunciators).
2. All vertical segments and the center 1/3 of the bar graph will turn on (no annunciators).
3. All annunciators, decimal points and the right 1/3 of the bar graph will turn on.
4. All display elements off.
5. The calibration numbers (C1 - C4).
6. The model no. 748 and the software version X.X.
Following the display test, four (4) calibration numbers (C1, C2, C3 and C4) will be indicated in
sequence. These numbers correspond to the settings of the setup parameters as well as the
calibration setting of the indicator. It is a good idea to copy these numbers down and place them in a
safe location AFTER completion of the calibration process.
GROSS KEY
The GROSS key will cause the weight display to return to the Gross Weight mode. The
G
Gross annunciator will be turned on.
GROSS
TARE KEY
There are two (2) TARE keys on the 748. The top (blue) TARE key is used to
T
momentarily display the stored tare value. The other TARE key (red) is used to enter a
TARE
new tare weight value. If the push button tare is enabled during setup and calibration,
Blue
pressing the red TARE key will cause the current gross weight to be stored as the new
tare weight and cause the weight display to change to the net weight display mode ( Net annunciator
turned on). If the push button tare feature was not enabled, pressing the red TARE key will cause the
current value of the tare weight to be displayed ( Tare annunciator turned on). The tare weight may be

KEYPAD FUNCTIONS

PWC
3 4 5 6 7 8
NET ZERO ID F1 F2 TIME/DATE
7
T N
ENTER
TARE NET PRINT
lb
T
CLEAR 4
kg
BAR
TARE
F1 F2 ID 0 1
32
The 748 is equipped
LOW
with a 27-key keypad.
BATT
The keypad is used to
Cardinal
enter commands and
Cardinal Scale Manufacturing Co.
data into the
instrument. This
section describes each
key along with its
8 9
normal function. It is
helpful to refer to the
5 6
actual instrument while
2 3
reading this section.