5.2
Connections
-
Terminal contacts located on the blue block are intended for connecting to the Ex
area.
-
Terminal contacts located on the black block are intended for connecting to the
secure area.
-
Terminal contacts, including the PE terminal, can be assigned wires up to a cross-
section of 4 mm
2
.
-
The cable shielding must be connected to the appropriate terminals in the shortest
possible way.
Schematic Representation
1
2
3
4
5
6
PR1626/6x
①
Ex area
②
no ex area (secure area)
③
Evaluation unit
④
load cell/cable junction box
⑤
Test voltage
between con screen: U
AC
≥2 kV
between ground: U
AC
≥500 V
⑥
Test voltage for cable
For cable lengths ≥50 m between ground: U
AC
≥500 V
5 Installation
Intrinsically safe load Cell interfaces PR 1626/60, ../61
Minebea Intec
EN-11
