Pulscon LTC
Function group "diagnostics" (0A)
D
O
C
T
-0
0
9
4
A
0
6
/2
009
12
07
82
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11.5.2
Unlocking of configuration mode
If an attempt is made to change parameters when the instr
u
ment is locked, the
u
ser is
a
u
tomatically req
u
ested to
u
nlock the instr
u
ment:
"unlock parameter" (0A4):
By entering the
u
nlock parameter (on the display or via comm
u
nication)
100
= for HART devices
2457
= for PROFIBUS PA devices
the P
u
lscon LTC is released for operation.
Hardware lock:
After pressing the
O
and
S
and
F
keys at the same time, the
u
ser is asked to enter the
u
nlock parameter
100
= for HART devices
2457
= for PROFIBUS PA devices.
"
Caution!
Changing certain parameters s
u
ch as all sensor characteristics, for example, infl
u
ences
n
u
mero
u
s f
u
nctions of the entire meas
u
ring system, partic
u
larly meas
u
ring acc
u
racy.
There is no need to change these parameters
u
nder normal circ
u
mstances and
conseq
u
ently, they are protected
b
y a special code known only to the P+F service
organisation. Please contact F
u
chs if yo
u
have any q
u
estions.
11.6
Function "measured dist." (0A5)
Display of meas
u
red distance in the selected
"distance unit" (0C5)
.
O
and
S
and
F
press sim
u
ltaneo
u
s
Please enter
u
nlock code and confirm with
F
.
E
+
–
E
+
–
