A&D BA-T Series Instruction Manual page 171

External input terminal (external input switch)
The external input terminal provides the functions " RE-ZERO key input on the balance", " PRINT key
input" and "opening and closing the breeze break doors" to the "contact input" via the wire extended
from the connected plug.
To turn the "contact input" on, short it for 100 ms or more.
To use the external input terminal, you must select the function in the [External input switch] screen.
Refer to "13.20. External input
Display settings: MENU key
Name
External input switch 1
External input switch 2
The display unit has two external input terminals: EX.SW1 and EX.SW2.
A foot switch (AX-SW137-PRINT) that functions as a PRINT key (sold separately) is available.
A foot switch (AX-SW137-REZERO) that functions as a RE-ZERO key (sold separately) is available.
For the plug connected to the external input terminal, a φ3.5 mm stereo plug MP-013LC (Marushin
Electric Mfg. Co., Ltd) or an equivalent product can be used.
Caution
Plugs are not included. If you prepare the plug yourself, you need to solder the plug, wire, switch, etc.
yourself.
Circuit diagram of external input terminals in the display unit
RE-ZERO
PRINT
RE-ZERO
PRINT
Example of compatible plug
Pin assignment
Pin Description
GND
1
RE-ZERO external contact
2
PRINT
3
switch".
System settings button
External input switch button
Setting value (setting range)
Open/close the right breeze break door,
Open/close the left breeze break door
1
2
3
1
2
3
common ground
terminal
input
external contact
input
Settings in a red box are default values (factory settings).
[External input switch] screen
RE-ZERO / PRINT ,
External input terminals of the display unit
External input switch 1
External input switch 2
Circuit diagram External view
Pin 1
Pin 2
Pin 3
171
Display unit
PRINT
RE-ZERO
GND