Weighing Indicators for Truck weighbridges and
Platform Scales
Digital weighing terminal »D 440 IS« 
for innovative weighing system solutions in potentially explosive atmospheres
Commercially verifiable in accordance with accuracy classes III, CE and EMC tested,
comprising 2 modules:
Weight display D 440 IS with Ex i protection
Certificate: CESI 05 ATEX 022 / classifications for gas and dust
Contains the electronic components and the interface to the scale
Supply unit PS 440
Intrinsically safe terminal box with inputs/outputs
Ex m proof (encapsulation)
Certificate: CESI 05 ATEX 023
 

The weight display D 440 IS and the supply unit PS 440 can be used in the approved zones (see table):
Manufacturer's
responsibility
  
Customer's responsibility
      
Category
  
Can be use in zone
(gas)
Can also be used in zone (gas)
Can be used in zone
(dust)
Can also be used in zone (dust))
  
Definition (94/9/EC) potentially explosive atmosphere is present:
Perm-issible
area for:
1G
/
1D
  0
(0)
1 and 2
20
(10)
21 and 22
  
Continuously or for long periods or frequently
D 440 IS
2G
/
2D
 
1
(1)
2
21
(11)
Zone 22 "conductive dust“
22
  

Occasionally

D 440 IS
PS 440
G= Gas
/
D= Dust
( ) = Old designation in brackets
Both modules have appropriate, specific approvals for use in potentially explosive atmospheres and must be combined..
The maximum distance between the weighing terminal D 440 IS and the supply unit PS 440 is 10 m (net cable length).
For connection to a scale with analogue load cells
6 user interface languages: German, English, French, Italian, Spanish, Portuguese
- Subject to technical change –
 
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