
OPERATION
MULTI GAUGE CONTROLLER
. . .
SETPOINTS MENU
This parameter group allows you to con igure the switching of relays functions. The MG is equipped
with
relays which are switched depending on the measured pressure. Fig. . shows the set-
points behaviour:
Figure . : Setpoints behaviour
Opisy przekaźników:
•
NO
- Normally Open contact (
N
ormal
O
pen)
•
NC
- Normally closed contact (
N
ormal
c
lose)
Refer to chapter . . to con igure connections.
To prevent multiple changes of the setpoint status when vacuum reaches the setpoint, histeresis
has been introduced which width is controlled by the Setpoint HI and Setpoint LO parameters:
•
Setpoint HI
– the level of vacuum which will be signalled by switching off the Setpoint diode
connected with a given measurement channel. If a vacuum measurement channel has been
connected with a given Setpoint (device relay output), then after reaching that value the relay
contacts at the output will be opened.
•
Setpoint LO
– the level of vacuum which will be signalled by switching on the Setpoint diode
connected with a given measurement channel. If a vacuum measurement channel has been
connected with a given Setpoint (device relay output), then after reaching that value the relay
contacts at the output will be closed.
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