User Manual

GMC-I Messtechnik GmbH 47
Direct Measuring Method 
– P
ermanent connection measurement type P1 
– Permanent connection 
– Probe to P1 terminal
Schematic Diagram
Patient leakage current is measured between the patient connec-
tions and PE of the mains connection.
Wiring Diagram
Setting Measuring Parameters for IP
Measuring 
Parameter
Meaning
Measurement Type
Suitable for 
DUT Connection via
Direct P1 Direct measuring method (via
test sock
et) with test probe P1
Test socket
Perm. con. P1 Permanently installed DUT
Permanent connection
Polarity – for direct only P1
L/N or N/L Selection of polarity for mains voltage to the test socket
Test Sequence
➭ Prior to all leakage current measurements, please make sure
that the measurement parameters „Ref. voltage L-PE“ and
„Testingfreq. Alt“ have been correctly set in the SETUP, see
section 6.2.
➭ Se
t the rotary switch to the I
P
position.
➭ Connec
t the DUT to the test socket.
➭ In the ca
se of direct measurement P1, measurement
must be performed with mains plug polarity in both di-
rections. Select the respective polarity t
o this end by
pressing the NL/LN key.
➭ Start the test: press the START/STOP key.
➭ After each reconnection to the mains, and as soon as
the first test is started, a mains connection test is exe-
cuted.
➭ A
cknowledge the warning which indicates that line
voltage will be connected to the test socket.
➭ Contact the short-circuited inputs for the applied parts
with test probe P1.
➭
The measured values are displayed. The measured
value recording symbol shown at the right appears.
Each time th
is 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 pr
ompts you to save the measured values to an ID
number.
➭ Read
the measured values and compare them with the table
of permissible limit values.
➭ P
ress the ESC key in order to discard the measured
values stored to buffer memory and acknowledge by
pressing the key shown at the right.
Maximum Allowable Limit Values for Leakage Current in mA
Test Standard
I
P
Type B
Type
BF
Type
CF
IEC 62353
(VDE 0751-1)
Direct current 0.01 0.01 0.01
Alternating current 0.1 0.1 0.01
EN 60 601
Direct current 0.01 0.01 0.01
Alternating current 0.1 0.1 0.01