TESTO 174 - Key functions

5 Display and control elements
28
Icon Capacity
75-100%
50-75%
25-50%
10-25%
<10%
Battery empty (measurement program was
stopped).
> Read out data and change battery (see
Changing the batteries page 30).
10 Lower alarm value:
• Flashes: programmed alarm value is shown
• Lights up: programmed alarm value was undershot
11 Upper alarm value
• Flashes: programmed alarm value is shown
• Lights up: programmed alarm value was exceeded
The display speed of liquid crystal displays slows down at
temperatures below 0 °C (approx. 2 seconds at -10 °C,
approx. 6 seconds at -20 °C) for technical reasons. This
does not influence the measuring accuracy.
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5.2. Key functions
✓ Operating status Wait and start criterion Button start
programmed.
> Press and hold GO button approx. 3 seconds to start the
measurement program.
- The measurement program starts and Rec appears in the
display.
✓ Operating status Wait: