Service Mode - Endress+Hauser FEC 22 Betriebsanleitung

Elektronic insert FEC 22
Procedure
• Turn the rotary switch to
Position 3.
• When first delivered or
after a reset the LED
second from the left in
the chain lights up:
delay time ∆ t = 1.5 s.
• Press the left key
repeatedly until the
appropriate LED in the
chain lights up at the
delay time required
(Assigning values see
Fig. 6.5).
Procedure
• Turn the rotary switch to
Position 4.
• When first delivered or
after a reset the LED
second from the left in
the chain lights up:
delay time ∆ t = 1.5 s.
• Press the left key
repeatedly until the
appropriate LED in the
chain lights up at the
delay time required
(Assigning values see
Fig. 6.6).

6.5 Service mode

In this mode the deviation dC of the current capacitance measured by the instrument
from the set switch point C
Procedure
• Turn the rotary switch to
Position 7.
• The deviation dC from
the set switch point can
be read off on the LED
chain (Assigning values
see Fig. 6.7).
Endress+Hauser
∆t ∆t
=
0,5 s 1,5 s 6 s 12 s
4x
3x
2x
1x
0x
∆t ∆t
= 0,5 s 1,5 s 6 s 12 s
4x
3x
2x
1x
0x
is shown on the LED chain.
S
dC < -4 pF
-4 pF < dC < -2 pF
-2 pF < dC < +2 pF
2 pF < dC < 4 pF
dC > 4 pF
BA160Y69
20 s
1
7 3
1
7
20 s
1
7 3
1
7
dC
3
1
7
6 Additional Settings
Switching delay
when covered
Fig. 6.5
3
∆t
Adjusting the time for switching
delay when probe is covered
Switching delay
when uncovered
∆t
Fig. 6.6
3
Adjusting the time for switching
delay when probe is uncovered
1
Fig. 6.7
3
7
Display of deviation dC
from set switch point
37