User’s Manual
NAMUR Sensors with ATEX-Marking Categorie 2G
No. 865 856 E Edition 0910
2
Mounting Bore-Hole
Example using BES 516-300-S327-S4-N:
d1: Ø of bore for switch head
Ø
10
H8
= Ø10
+0,022
d2: nominal thread diameter M12x1 6H
L: recommended screw–in depth in steel L
0.8xd
2
0.8x12 = 9.6
To ensure sealing under extremely high pressure,
switches are equipped with O-Ring and Teflon support
ring
Technical Data
Characteristic Data
Effective operating dist. S
r
1,5 mm
Nominal Sensing Distance s
n
1,5
mm
Repetition R
max 5,0%
Electrical Data
Operating voltage U
i max
9 V DC
Current draw undamped
min
4
mA
Effective Internal Capcitance C
i max
30 nF
Effective Internal Inductance L
i max
0,5 mH
Protected against miswiring
yes
Short circuit protected
yes
Mechanical Data
Housing Material
Stainless Steel:1.4104
IP protection acc. to IEC 60529
IP 68 acc. BWN Pr 20
Connection version
M12-connector
Remarks
For use only with suitable approved switching amplifier or
processor, if the following maximum values not be
exceeded: Ui = 15 V; li = 50 mA; Pi = 120 mW.
Further technical data see datasheet
No. 865 8
56 E
Editio
n 09
10; Subj
ect to chan
ges.
