TESTO 315-3, Instruction Manual

Page: 10 / 24

4 Product description
10
Temperature/humidity module option
9 Temperature/humidity sensor
10 Connection for temperature/humidity module to the testo 315-3
Key functions
Button Duration Status Function
Short
Reading display • Holds measuring
values
• Displays maximum
values
• Displays minimum
values
• Displays current
values
Configuration
mode
Confirms entry, next
setting
Long
Reading display
(current value)
Opens configuration
mode
Reading display
(maximum
value/minimum
value/hold value)
Resets maximum
value, minimum value,
hold value
Configuration
mode
Exits configuration
mode (changes are
stored)
Short
Instrument is off Switches instrument
on
Instrument is on Switches on display
illumination/switches
off display illumination
The display
illumination
switches off
after 3 minutes
if no keys are
pressed.
Long Instrument is on Switches instrument
off