User Manual

66 GMC-I Messtechnik GmbH
11.1 List of error messages
Error Messages Possible Causes Corrective Measures
Mains Connection Errors
– Protective conductor PE at the
mains outlet at which the SECUT-
EST is being operated is conduct-
ing voltage! This de
tection function
makes use of the metallized
START/STOP key on the test
instrument. In order for detection to
function correctly, it must be possi-
ble to establish reference to earth
pot
ential 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 10).
➭ Please
remove the SECUTEST’s
mains plug from this outlet and ar-
range to have the outlet/installa-
tion inspected by a qualified
electr
ician without delay. Do not
operate any other devices at this
electrical outlet before this inspec-
tion has been completed.
➭ In
order to ensure that detection
functions reliably, repeat the inter-
ference voltage test and observe
the following tips:
– Unplug all USB devices from the
S
ECUTEST’s USB ports.
– Remain in contact with a
gr
ounded object while pressing
the START/STOP key (e.g. a
heating pipe).
– Do not contact the START/STOP
key with an object or while wearing
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
syst
ems; 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 i
t’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. 
(Make absolutely sure that direct
lea
kage current measurements 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: Re-
spond to the question by pressing
. 
The IT System option remains thus
active.
➭ Oper
ation in an TN or a TT system:
Respond to the question by press-
ing
. As a consequence, the IT
system option is deactivated.
Line frequency is less than 48 or
greater than 62 Hz.
➭ PE detection does not work in this
case: select
or , depending
on whether or not the utilized sys-
tem is an IT system.