36
7500 Series Manual
6.1 LED Indication
LED Color Description
K1 Green Contact K1 is energized
K2 Amber Contact K2 is energized
P/SV Blue/amber Blue: safe pressure
Amber: valve on
6.2 Default Settings
The following table shows all the possible parameters and their default values:
Display Description Default values
PASSWORD / SET Enter password to access
purge settings
0000
PURGE / PROGRAM Up to 5 programs to select 3
PURGE / TIME Time required for purging 00:30
ENCLOSUR / PRESS P1 Enclosure pressure P1 0.25 inch (gas), 0.65 in
(dust)
0.63 mbar (gas), 1.63 mbar
(dust)
ENCLOSUR / PRESS P2 Enclosure pressure P2 0.8 inch (2 mbar)
ENCLOSUR / PRESS P3 Enclosure pressure P3 3.0 inch (7.5 mbar)
ENCLOSUR / PRESS P4 Enclosure pressure P4 6.0 inch (15 mbar)
LEAKAGE / HYST Compensates for leakages 0.2 inch H
2
0 (0.5 mbar)
PROGRAM / K2 Various parameters to acti-
vate K2 contacts
K1*
SHUT-OFF / DELAY Delay in turning K1 o when
P<P1
0 sec
UNITS / M I M for metric units, I for im-
perial units
I
CHANGE / PASSWORD Change existing password
RESTORE DEFAULTS Factory restore
DISPLAY ROTATION Landscape or portrait Portrait
CYCLE POWER Power o then on O
* Warning!
K1 is not an alarm output. See chapter 6.11 for programming details on what controls K2.
6.3 Contrast and Back light
Adjusting the Contrast
To adjust the contrast, push on the display in the area marked “contrast.” The up and down arrows adjust the
contrast level—up increases and down decreases.
LCD Back Light
The LCD back light is always on. It cannot be turned off or adjusted.
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