4.6
Fig. 7
No.: 9_6975 00 E
4
Design and Function
4.6
SIGMA CONTROL MOBIL keys and displays
■
Pressure relief valves
Pressure relief valves protect the system against unacceptable pressure rise. They are factory
set.
■
Enclosures and covers over moving parts and electrical connections:
These protect against accidental contact.
SIGMA CONTROL MOBIL keys and displays
Instrument panel keys and displays
Item Sign
Name
1
«Acknowledge » key. Acknowledgement key
2
«Information» key
3
«Menu» key
4
«Horizontal arrows»
change values
«LEFT» and
«RIGHT» keys
5
«UP» and «DOWN»
keys
Service Manual
Screw Compressor
M135 SIGMA CONTROL MOBIL
Function
Acknowledges active and
displayed messages.
Displays the event memo‐
ry.
Displays the main menu. –
Change parameter val‐
ues,
cursor movement when
entering a password.
Vertical movement in me‐
nus.
Change values in pass‐
word entry.
Background LED
Flashes when a message
is active and waiting for
acknowledgement.
Flashes if a message is
active.
–
–
33