User Manual
30 GMC-I Messtechnik GmbH
Test Sequence with Connection to the Test Socket
➭ Set the rotary switch to the R
PE
 position.
➭ Sel
ect measurement type or connection type, and test cur-
rent. After pressing the Ip k
ey, you have direct access to the 
test current parameters: each time this key is pressed, the 
setpoint value shown in the measuring window is switched to 
the next value.
➭ Connect the D
UT to the test socket.
➭ Start the test: press the START/STOP key.
➭ Contact all conductive parts which are connected to 
the protective conductor with test probe P1.
During measurement, the connector cable must 
only be moved to 
the extent to which it’s accessible during repair, modification or 
testing. 
If a change in resistance occurs during the manua
l test step of the 
continuity test, it must be assumed that the protective conductor 
is damaged, or that one of the connector contacts is no longer in 
flawless condition.
➭
The measured values are displayed. The measured 
value recording symbol shown at the right appears. 
Each time
 this key is pressed, the currently displayed 
measured value is saved to the buffer.
➭ S
top the test: press the START/STOP key. 
The save symbol appears (floppy disk showing the 
number of measured values stored to buffer memory) 
and 
prompts you to save the measured values to an ID 
number.
➭ Read 
the measured values and compare them with the 
table of permissible limit values.
➭ Press the ESC key in order to discard the measured 
values stored to buffer memory and acknowledge by 
pressing the key shown at the right. 
Special Case: Testing Extension Cords
➭
Set the measurement type parameter to “PE(TS) – P1”. 
➭ Connect the EL1 adapter to the P1 sockets at the test instru-
ment.
➭ Connect the pl
ug at the end of the extension cord to the test 
socket.
➭ Connect the coupling sock
et at the end of the extension cord 
to the plug at the EL1 adapter.
➭ Sam
e test sequence as described above.
Further options for testing extension cor
ds are included in the 
description of single measurements in the EL1 switch position 
and under automatic test sequences in switch position A8.
Special case: permanently installed DUT
➭ Contact all conductive housing parts with test probe P1.
Special Case: Testing Protective Conductor Resistance at PRCDs 
(as of firmware V1.4.0) 
For PRCDs whose protective conductor resistance cannot be 
measured when switched off, the SECUTEST BASE(10) offers the 
“a
ctive: PE(TS) - P1” measurement type, with which the PRCD 
can be switched on in order to ascertain protective conductor 
resistance.
➭ Se
t the measurement type parameter to “active: PE(TS) 
– 
P1”.
➭ Connec
t the EL1 adapter (or alternatively a normal test probe) 
to the P1 sockets at the test instrument.
➭ Co
nnect the plug of the PRCD under test to the test socket.
➭ Connec
t the EL1 adapter to the outlet on the PRCD (alterna-
tive: connect the test probe to the 
protective conductor of the 
PRCD’s outlet, e.g. by means of an alligator clip).
➭ Start the
 measurement.
➭ S
witch line voltage to the test socket. Then switch the PRCD 
on.
➭ Other
wise, the test sequence is the same as described 
above.
Note
With the +200 mA=, –200 mA= and ± 200 mA= mea-
surement types, test current rises ver
y slowly in order to 
prevent triggering of residual current monitoring at the 
PRCD. And thus with this measurement type, it may take 
longer than usual until a valid measured value is dis-
played. For this reason, the protective conductor should 
no
t be contacted manually with the test probe, in order to 
prevent a sudden rise in test current resulting in inadver-
tent tripping of the PRCD.
Maximum Allowable Limit Values for Protective Conductor 
Resistance for Connector Cables with Cross-Sections of up to 
1.5 sq. mm and Lengths of up to 5 m 
Test Standard
Test 
Current
Open-
Cir
cuit 
Voltage
R
SL
Housing – 
Device Plug
R
SL
Housing – 
Mains Plug
Mains 
Po
wer 
Cable
VDE 0701-
0702:2008
DIN EN 60974-4
VDE 0544-
4:2009-06
> 200 mA
4 V < U
L
 < 
24 V
0.3 
+ 0.1  
1
for each 
additional 
7.5 m
IEC 62 353 
(VDE 0751-1)
> 200 mA
0.2  0.3  0.1 
1
Total protective conductor resistance: max. 1 










