User manual
SmartBox
®
 1 / SmartBox
®
 2 / SmartBox
®
 3
8 / 16  Part No. 28 100 57 e 
Menu 
Input function 
Input value 
4.Tank
volume 
Adjust the tank volume with [+] / [-] (100%). The default 
setting is 0 L. The value must be set. 
___________L 
Please see a volume table for the highest value, 
if available. For a 100 m³ cyl. buried tank, this 
may for example be the value 100600 litres. 
Free space: YES
 Free space[%] 
Free space: NO 
5.Tank
height 
Enter inner tank height in millimetres: e. g.: 249 cm 
(max. value = 999,9 cm) (height without dome) 
_________mm 
Please see a volume table for the highest value, 
if available. For a 100 m³ cyl. buried tank, this 
may for example be the value 288 cm. 
REFERENCE 
Steps 6 + 7 are only required for SmartBox
®
 2 and SmartBox
®
 3 
Menu 
Input function 
Input value 
6.Relay 1
or 
 SmartBox 2
6.Acoustic
alarm 
(Buzzer) 
 SmartBox 3
Switch function of relay 1 or buzzer: 
ON   ______% 
OFF ______% 
ON   ______°C 
OFF ______°C 
Deactive 
The relay does not switch in relation to
the content 
Active 
The relay switches in relation to the 
content 
ON
Forces the relay to energise (fix ON) 
OFF
Forces the relay to de-energise (fix OFF) 
Example of switch point setting for Active (with 
hysteresis): 
Enter switching points as % values from 01-99 (and/or 
enter as °C value from -99 to +99 only for probe with 
temperature measurement) 
deactive   activate with [+] / [-] to
active      press Enter to confirm   
On 10%      ON:   set with [+] / [-]   [Enter]
Off 12%   OFF:  set with [+] / [-]   [Enter]
On +0°C   ON:   set with [+] / [-]   [Enter]
Off +0°C   OFF:  set with [+] / [-]   [Enter]
Deactivate the relay or buzzer via deactive or input
of 0% or 0°C (for On and Off).
7.Relay 2
 SmartBox 
2+3 
See 6. Relay 1 for the data for Relay 2 
ON   ______% 
OFF ______% 
ON   ______°C 
OFF ______°C 
8.Exit
Press [Enter] to return to display mode 
After performing entry steps 1 - 7, the programming process is completed. After confirmation 
of step “8.Exit“, the device automatically returns to default display mode; the current tank 
content is shown in the display. 
Special functions are available under entry steps 9 to 24. 










