Page
3
of
1
36931-751-16
Safety Instructions
29.10.2013
Dr. Klausgrete
Drawing No.
Designation
Revision
00
ambient temperature: -20°C to +60°C
Hazardous area Zone 0, 1, 20 or 21
Cable junction box
R1
R2
R8
ambient temperature: -20°C to +60°C
Hazardous area Zone 2, 21 or 22
Equipotential bonding conductor
Load cell #1
Rmin = 300
Cable junction box
Ex nA IIC T6 Gc
Ex tb IIIC T70°C Db
-20°C
≤
Ta
≤
60°C
Ex tb IIIC T50°C Db
-20°C
≤
Ta
≤
40°C
R1
R2
R8
Evalaution
unit
with
non
intrinsically
safe
output
to the load
cells
6)
6)
6)
6)
6)
6)
9)
9)
9)
9)
10)
10)
Equipotential bonding conductor
Load cell
#1
Load cell
#2
Load cell
#8
Evalaution
unit
with
intrinsically
safe
output
to the load
cells
Output parameters:
The output voltage is
given by the connected
evaluation unit.
Input parameters:
Um = Umax = 25V
Load cell #2
Rmin = 300
10)
Load cell #8
Rmin = 300
10)
For load cells in
zone 2: input
circuit in type of
protection
Ex nA
See page 2
8)
8)
