Operation
GA 09.033/6.02 – (2011-07) –
©
Oerlikon Leybold Vacuum
41
Value
the upper switching threshold
(Setpoint high) defines the pres-
sure at which the switching func-
tion is deactivated when the pres-
sure is rising.
e.g.:
Ö
gauge dependent
(
→
Table).
If another gauge type is con-
nected, CENTER ONE auto-
matically adjusts the threshold
if required.
unt
erer
Sc
hwell
w
ert
5×10
2
1×10
-2
FSr
1×10
3
1×10
-1
1.5E3
1×10
-3
FSr
1×10
3
low
er
thre
shol
d
limit
upp
er
thre
shol
d
limit
+10% lower threshold
+10% lower threshold
+10% lower threshold
+10% lower threshold
+1% measurement range
(FSr)
+10% lower threshold
+10% lower threshold
+10% lower threshold
+1% measurement range
(FSr)
The minimum hysteresis between the upper
and lower switching threshold is at least 10% of
the lower threshold or 1% of the set full scale
value. This prevents unstable states.
