TESTO 0555 6451 Operating Instructions Manual page 35

ERROR ERROR
Off Off
PArA Parame-
ter Error
ERROR Pressure
Error
ERROR Flow
Error
ERROR Temp
Error
cr�OL Critical
over
limit
cr�UL Critical
under
limit
OL Over
limit
UL Under
limit
Lock via ---
key
* Detection zone → 3.2, Figure 1.
Error In the event of an error, the outputs react according to the setting under
[FOU1] and [FOU2] (→ 9.6.10).
Warning
Unit faulty / malfunction
Supply voltage too low
Parameter setting outside
the valid range
Error in pressure meas-
urement
Error in flow measurement
Error in temperature meas-
urement
Detection zone* exceeded
Detection zone* not
reached
Detection zone* exceeded�
Detection zone* not
reached
Setting buttons on the unit
locked, parameter change
rejected
FOU Replace device�
Off Check the supply voltage�
Change [diS.B] setting (→
9�6�1)�
FOU Repeat parameter setting�
FOU Check pressure measure-
ment� Replace device�
FOU Check flow measurement�
Replace device�
FOU Check temperature meas-
urement� Replace device�
FOU Check flow range / tem-
perature range / pressure
range�
FOU Check temperature range�
OU Check flow range / tem-
perature range / pressure
range�
OU Check flow range / tem-
perature range / pressure
range�
OU Unlock unit → 9.1.3
UK
35