Connector
Buzzer
USB port
ON/OFF key
Connection for
power supply
Signal light
Gas input
Function keys
Jog dial
Connector
Display
CH4
AL4
VOL%
CH4
0,1
1,0
0
10
100
10
0.90
Measurement value
Capacity
disposable battery/
rechargeable battery
Selected
application
Bar display
Alarm
Unit
Gas type
Current assignment of
function keys F1 – F3
Supporting bracket
Fig. 1:
EX-TEC HS 680
device overview
Fig. 2:
EX-TEC HS 680
display
EX-TEC
®
HS 680/660/650/610