Bürkert 8793 Manual de instruções de montagem - Página 3
Procurar online ou descarregar pdf Manual de instruções de montagem para Posicionadores de válvulas Bürkert 8793. Bürkert 8793 16 páginas. Position controller and process controller with ii 3g ex ec ic iic t4 gc / ii 3d ex tc iiic t135c dc approval
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6.
Technical daTa.
Repeating accuracy
Temperature drift
Hysteresis
Operating voltage
Residual ripple
DC rated current
No-load current
l
0
Residual current
Rated insulation voltage
Short-circuit protection
Max. voltage drop at the switching
output compared to operating
voltage
Wire breakage safety /
reverse pole protection
Output function
Switching frequency
Protection class
english
8
7.
assembly
Caution!
Risk of injury from applied pressure!
Applied pressure may cause the spindle to move sud-
denly and injure fingers during installation.
•
Depressurize the device before installation.
The external position feedback is installed in two steps.
Step 1: Replace the standard display element with
the display element for the external position
feedback.
→
Loosen the 4 screws of the housing cover and open
the cover.
→
Remove the standard display element from the spindle
(see Fig. 1: ).
→
Push the display element with switching flags for the
external position feedback all the way onto the spindle
(see Fig. 1: ).
english
10
≤ 2 %
± 10 %
3 ... 15 %
10 ... 30 V DC
≤ 10 % U
ss
≤ 100 mA
≤ 15 mA
≤ 0.1 mA
≤ 0.5 kV
yes / clocking
≤ 1.8 V
yes / complete
Three-wire,
normally open
contact, PNP
≤ 0.02 kHz
IP65, IP67
6.1.
conformity with the following
standards
CE mark conforms to EMC Directive 2004/108/EC
Display element
with switching flags
for external
position feedback
Standard
display element
Fig. 1:
Replacing display element
Type 8791, 8792, 8793
english
9
Fastening
screws for
housing cover
english
11