TESTO 0519.0816, Operation Manual

Operation manual Pneumator  

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   Testo Industrial Services  

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   Version 1.4  

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   2019  

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   Page 9 

Operation / application: 

After selecting the operation mode CTRL and leaving the menu (MENU button) a 
zero adjustment is automatically conducted, in case AUTO ZERO = ON. 
Subsequently, the reference sensor is venting („VENT “).  
 
 
The respective pressure set point value now results now from the nominal pressure 
value (see upper display middle, initial value = full measuring range), multiplied by a 
percentage value (see lower display middle, initial value = 0%). The respective set 
point value is indicated in the lower right display, the unit in the upper right. Note: The 
new set point value is activated immediately after the change of the absolute value or 
of the percental value.  
 

Example

 (compare illustration): 

-  Nominal value: 100.00 Pa 
-  Percental value: 0% 
-  Current set point value =  100 Pa * 0% = 0 Pa 

 
You can switch between the absolute value and the 
percental value by pressing OK.  
 

Change of the percental value (lower display middle - framed bold): 

For the gradual up - and down regulation of the pressure value, e.g. 0 / 25 / 50 / 75 / 
100 % of the absolute value. The step size x is defined in the submenu  „range“ . 
UP:    

Pressure rise of x % of the measuring range  

DOWN: 

Pressure reduction of x % of the measuring range  

0%:   

Pressure = 0 Pa 

100%:  

Pressure = 100% of the measuring range 

Change of the absolute value (upper display center - framed bold): 

For the start-up of a given pressure value, e.g. 610 hPa. In most cases it is advisable 
to leave this value on 100% of the measuring range. 
UP:    

Digit +1 

DOWN: Digit 

-1 

0%:   

one digit position to the left 

100%:  

one digit position to the right 

Retrieval of the calibration data: 

As soon as the central display figure indicates a stable value, the respective 
calibration data can be retrieved:  
- physical unit: Display value upper right 
- pressure set value: Display value in the lower right 
- actual value of test device: Display  of the test device 
- Reference value: Display middle 
 

Manual  zero balance (ZERO) 

In case the reference measuring cell is to be set to zero during the calibration, please 
use the ZERO button. After approximately 3-5 seconds, the previous status is started 
up again.