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3.3.3. RS232
RS232 (9pin D type connector).
Equipo
2
3
4
5
3.3.4. Mercury level bubble
BR20-BR30 indicator has a function with connect with a mercury level bubble. It could be fixed on a plat-
form. When the platform is not level and exceeds a certain angle, the indicator will sound beeper and show
Err
L. Then it could not be weighing.
BR20
KEY
DESCRIPTION
Turn on or off the power.
Set the zero point for all subsequent weighing. The display shows zero. A secondary function of "En-
ter" Key when setting parameters or other functions.
Tares the scale. Stores the current weight in memory as a tare value, subtracts the tare value from
the weight and shows the results.
A secondary function incrementing the active digit when setting a value for parameters or other
functions.
Press
and
key together in normal weighing mode will turn on/off animal function (when enter/escape
animal mode, you will hear beeper on twice).
Memory recall key, show total accumulate weight in memory. In setting mode, this key used to move
active digits right.
Accumulate key, store current weight in memory. In setting mode, this key used to move active digits
left.
Press
and
key for MC (memory clear).
To print the results to a PC or printer using the optional RS232 interface. Press Print during selfchec-
king will enter setting mode.
Gross weight/net weight shift key, hold this key for 3 seconds to shift the unit. Secondary funcion
(ESC), is to return to normal operation when the indicator is in a parameter setting mode.
Press
and
key together for setting check weighing limit.
RXD
Input
Receiving data
TXD
Output
Transmission data
VCC
Signal +5V
GND
Signal ground
G/N
PRINT
M+
MR
USER'S MANUAL
PC
2
3
DON'T CONNECT
5
4. KEY DESCRIPTIONS
TARE
ZERO
BR20 | BR30
Hi
Ok
Lo
EN
23
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