Operation And Display Elements - TESTO 6457 Instruction Manual

Compressed air meter
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6.1

Operation and display elements

The following illustration shows the operating and display unit of the
sensor from above.
1 and 2: Switching status LEDs
▪ LED
= switching status OUT1 (lights up if output 1 is switched)
LED
= switching status OUT2 (lights up if output 2 is switched)
3: TFT display
▪ Display of current process values (flow quantity, temperature, totaliser)
▪ Display of the parameters and parameter values
4: [] and [] key
▪ Select parameter
▪ Change parameter value (press and hold key)
▪ Change process value display in normal operating mode (RUN mode)
▪ Lock / Unlock (keys pressed simultaneously > 10 seconds)
5: [⚫] key = Enter
▪ Change from RUN mode to the main menu
▪ Change to setting mode
▪ Acknowledge the set parameter value
Display illumination:
▪ Instrument temperature > 70 °C: Brightness automatically
Note
▪ Instrument temperature ≥ 100 °C: Display automatically
reduced
switched off
33

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