Testo AG Tachometer, 05634770 Data Sheet

5 First steps 

 

33 

• 6

 : Halves the currently selected value. Accelerates if the 

button remains pressed. 

• 7

 : Decreases the currently selected value. Accelerates if the 

button remains pressed. 

8

  The trigger signal input socket is used if an external trigger (e.g. 

rotational speed sensor) is used to control the flash sequence. 

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The following status displays may appear in the lowest line in the 
display: 

• 

: lights up if the rechargeable battery must be 

charged again or the battery must be exchanged. 

• 

: lights up when the flashing frequency is generated by 

the instrument. The units are displayed with FPM as 
standard. 

• 

: lights up upon switching to an external trigger signal. 

The units are displayed as standard with 1/min (revolutions 
per minute). 

• 

: lights up when the external trigger signal causes a 

flashing frequency that is too high. 

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Only operate and store instrument with battery 
compartment cover. 
If the instrument is not used for a longer period, remove all 
batteries/rechargeable batteries from the instrument.  
Incompletely charged batteries/rechargeable batteries 
reduce the operating time. 

 

 

 

1.

  Loosen screws on the bottom of the instrument.  

2

  Remove battery compartment cover. 

3.

  Insert batteries (AA)/NiMH rechargeable batteries (AA) (observe 

the polarity!) 

4.  Close the battery compartment cover. 
5.

   Tighten screws.