100
Gossen Metrawatt GmbH
21.2
List of Error Messages
Error Message
Possible Causes
Corrective Measures
Mains Connection Errors
–
Protective conductor PE at the
mains outlet at which the test
instrument is being operated is
conducting voltage! This detection
function makes use of the metal-
lized
START
/STOP
key on the test
instrument. In order for detection to
function correctly, it must be possi-
ble to establish reference to earth
potential via the user’s finger.
Note
If the user’s finger is insulated
from the key when it’s
pressed, this error message
may occur although the instal-
lation is OK (see “Automatic
Recognition of Mains Con-
nection Errors” on page 14).
➭
Please remove the test instru-
ment’s mains plug from this outlet
and arrange to have the outlet/in-
stallation inspected by a qualified
electrician without delay. Do not
operate any other test instruments
at this electrical outlet before this
inspection has been completed.
➭
In order to ensure that detection
works reliably, repeat the interfer-
ence voltage test and observe the
following tips:
– Unplug all USB devices from the
test instrument’s USB ports.
– Remain in contact with a
grounded object while pressing
the
START
/STOP
key
(e.g. a heating pipe).
– Do not contact the
START
/STOP
key
with any object or with gloves.
PE connection not detected (at the
outlet at which the test instrument is
being operated):
–
If the installation is defective!
–
In the case of special types of TT
systems; detection may fail in this
case.
–
If the test instrument is being oper-
ated in an IT system
➭
If the test instrument is being oper-
ated in an IT system:
Acknowledge the question by
pressing
– the IT system option
is activated in this case.
➭
If it’s not an IT system: remove the
mains plug from the outlet and in-
spect the installation without delay!
➭
If it’s a TT system without neutral
conductor, press
; direct leak-
age current measurements are
possible.
(Please make absolutely sure that
direct leakage current measure-
ments are possible in your current
mains type!)
As opposed to the previously used
mains connection, PE was detected
while the IT system option was acti-
vated in setup.
➭
Operation in an IT system: respond
to the question by pressing
.
The IT system option remains ac-
tive as a result.
➭
Operation in a TN or TT system: re-
spond to the question by pressing
. The IT system option is deacti-
vated as a result.
Line frequency is less than 48 or
greater than 62 Hz
➭
PE detection does not function in
this case: select
or
depend-
ing on whether or not the utilized
system is an IT system.
Summary of Contents for SECULIFE ST BASE 25
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