TESTO 316-1 - Page 12

7 Using the product
10
Function
Setting options/comments
On/Off (long press)
Switches the instrument on or off
Measurement parameter
Cycle through CH
4
(methane), C
3
H
8
(propane), C
4
H
10
(butane) or H
2
(hydrogen)
Display illumination (long press)
OFF (display illumination not active) or
ON (display illumination active)
Alarm sound
ON (acoustic alarm on) or OFF
(acoustic alarm off).
The frequency of the alarm sound
increases as the concentration
increases.
Unit
Switch between PPM and %LEL