Salter Brecknell LPS30 - Manual (Page 8)

position of the zero-point potentiometer on PCB; however, the software only
deals with positive value. So, is you are the position of zero-point
potentiometer is error; adjust potentiometer’s position to make the ADC data
will be positive value and larger than (Zp%+ Zk%) x NFS. Normally the
indicator is factory-calibrated, and end users do not need this operation.
Below is the drawing of position of the zero-point potentiometer on PCB for
conference, decrease ADC data by rotating clockwise, and increase ADC data
by rotating counter-clockwise.
3. Press UNIT key to select displaying weight inner code or input the inner
working voltage value. When the “U x.xx” is displayed, the display digit is
voltage value, and the unit is V. The proper working power voltage is between
5V and 8V.
4. Press TARE key to display filtered or un-filtered weight A/D data; when X is
on, the data is filtered.
5. Press ON/OFF/ZERO key to exit this mode and return to normal weighing
mode.
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Ⅴ. WORKING PARAMETER SETUP:
1. When scale is in normal weighing mode, press and hold down
10
ON/OFF/ZERO and UNIT key until ‘SEtUP’ is shown, that means the
scale is in SETUP mode.
2. This indictor has 19 kinds of parameters to be selected and setup by this
function.
3. During SETUP mode, press UNIT key to change the flashed digits, and
HOLD/PRINT key to shift the flashed position. Press TARE key to confirm
and save the set data and enter next setting. Press ON/OFF/ZERO key to
exit this mode.
4. Display
1) P A.B : Item A parameters and one digit can be input.
2) P A.BC: Item A parameters and two digits can be input
3) P AB.C : Item AB parameters and one digit can be input
4) P AB.CD : Item AB parameters and two digits can be input
5. Detailed setup:
5.1) P1.xy: Auto-off time xy= 00-15
00: means no auto-off function
01-15: means the scale turns off to save power after 01-15 minutes
when no variety of weight on scale and no key operation.
5.2) P2.x: HOLD/PRINT key function definition
x=0 means only HOLD function
x=1 means only PRINT function
x=2 means HOLD and PRINT function: short-time click the
button once for Print function, and hold the button for
several seconds for HOLD function
5.3) P3.xy: Hold function setting
Xy=0: No hold function;
Xy=1: When the scale becomes stable, it will hold the larger weight
reading;
Xy=2: When the scale becomes stable, it will automatically display and
hold the weight reading. When this weight is below 10d, HOLD
function will automatically inactivated. When the new weight is more
than 10d, the scale will hold the new weight when stable.
Xy=3-50: When the weight variety is within the setting range +3~50d,
the weight reading will remain unchangeable.
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