Additel 686 - Page 20

12
Table 7 Main connections
No.
Introduction
Comment
1
LCD
2
COM
ADT673 only, common, black
3
V/mA/SW
ADT673 only, voltage/circuit/switch measurement input, red and white
4
Loop
ADT673 only, DC power output, red
5
Power
Short press to turn on, press and hold for 2 seconds to turn off, short press to take
a screenshot when it is turned on.
6
External module
If needed, RS232 module and WIFI module are available
7
USB TYPE-C
Communication or power supply
8
Pressure module
9
Pressure inlet
Visible only after removing the back cover(with ATM mark), it is used for air
connection of the barometric calibration