Gossen Metrawatt GmbH
65
Setting Measuring Parameters for IA
Test Procedure
➭
Before conducting any leakage current measurements, make
sure that the “Ref. voltage L-PE” and “Alt. Test Freq.” mea-
surement parameters have been set correctly in SETUP (see
section 13.3).
➭
Set the rotary switch to the
I
A
position.
➭
Connect the DUT in accordance with the selected measuring
method.
➭
Select the measurement type:
– By setting the parameters
or
– Directly via the
Measurement Type
key
➭
In the case of
direct measurement
, measurement must be per-
formed with mains plug polarity in both directions. Press the
Polarity
softkey in order to change polarity.
➭
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 executed.
➭
– Measurement type direct P1:
Acknowledge the warning
which indicates that line voltage will be connected to
the test socket.
➭
Switch the device under test on.
➭
Contact the short-circuited applied parts with the test probe.
➭
The measured values are displayed. The measured
value recording icon shown at the right appears. Each
time this key is pressed, the currently displayed mea-
sured value is saved to buffer memory.
➭
Turn off the device under test.
➭
End the test:
Press the
START
/STOP
key.
The save icon appears (floppy disk showing the number of
measured values stored to buffer memory) and prompts
you to save the measured values to a test object ID num-
ber.
➭
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.
Maximum Permissible Limit Values for Leakage Current from the
Applied Part in μA
Measuring
Parameter
Meaning
Meas. Type
Suitable for
DUT Connection via
Direct P1
Direct measuring method (via
test socket) with test probe P1
Test socket, AT3 adapter
(AT3-IIIE, AT3-IIS, AT3-IIS32),
AT16DI/AT32DI
Alternative P1
Equivalent leakage current mea-
suring method (via test socket)
with test probe P1
Test socket
Perm. conn. P1
Direct measuring method
Permanent connection
Phase angle – for direct P1 and permanent connection P1 only
0° or 180°
Selectable phasing for the internal generator relative to mains
phasing
Polarity – for direct P1 only
Normal
Selection of polarity for mains voltage to the test socket
Reversed
The U(set) and Frequency(set) measuring parameters for the “Alternative” mea-
surement type are no longer included as of firmware version 1.7.0. These param-
eters apply to single measurements as well as test sequences, and have to be
entered in SETUP (see section 13.3).
U(set) – for alternative (P1) and permanent connection (P1) only
110 V, 115 V,
220 V, 230 V, 240 V
Selection of a line voltage for synthetic test voltage
Frequency(set) – for alternative P1 only
48 Hz ... 400 Hz
Selection of a line frequency for synthetic test voltage
Test Standard
Leakage Current from Applied Part –
Alternating Current
Type B
Type BF
Type CF
IEC 62353 / EN 62353 / VDE 0751-1
–
5000
50
Summary of Contents for SECULIFE ST BASE 25
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