Salter Brecknell HS-300 - Manual (Page 8)

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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  is
on, the data is filtered.
5. Press ON/OFF/ZERO key to exit this mode and return to normal weighing
mode.
Ⅴ . WORKING PARAMETER SETUP:
1. When scale is in normal weighing mode, press and hold down 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
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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
xy = 00 : means no auto-off function
xy = 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 : only HOLD function
x = 1 : only PRINT function
x = 2 : 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.
5.4) P4.x: RS232 mode setting
x = 0 : No RS232 function. It will not transmit or receive any data although
the scale is with RS232 hardware. RS232 function can be only
activated when scale is in normal weighing mode.
x = 1: Press PRINT/HOLD key, the scale will output the current stable
displayed weight reading and weight unit, and not receive any data
from other equipment. The output format is as below:
<LF>< reading, minus, decimal point, weight unit><CR><EXT>
x = 2: Press PRINT/HOLD key, the scale will output the data of stable
current gross, tare, net weight reading and weight unit. The format is