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Gossen Metrawatt GmbH
Setting Measuring Parameters for IPE
1
Only suitable for connecting the DUT to the test socket. Not suitable for
measurements with AT16DI or AT32DI adapter.
When testing in accordance with product standards (e.g.
EN 61010 or EN 60335), measurements must be conducted
under all fault conditions. For testing after repair or periodic testing
it’s usually sufficient to perform measurement in the
Normal Status
setting.
Test Procedure for Direct Measuring Method
➭
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
PE
position.
➭
Select the
Direct
measurement type:
– By setting the parameters
or
– Directly via the
Measurement Type
key
➭
Connect the DUT’s mains plug (protection class I) to the test
instrument’s test socket.
➭
Make sure that the device under test is switched off.
➭
Start the test:
Press the
START
/STOP
key.
➭
Switch the device under test on.
➭
The measurement must be performed with mains plug
polarity in both directions. Press the
Polarity
softkey in
order to change polarity.
➭
Acknowledge the warning which indicates that line
voltage will be connected to the test socket.
➭
Switch the device under test on.
➭
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 num-
ber of measured values stored to buffer memory) and
prompts you to save the measured values to a test ob-
ject 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.
Test Procedure with AT3-I IIE Adapter
Attention!
!
Please observe the operating instructions for the AT3-IIIE
regarding correct connection of the test adapter and the
DUT, as well as details concerning the test.
Measuring
Parameter
Meaning
Meas. Type
Suitable for
DUT Connection via
Direct
Direct measuring method
Test socket,
AT16DI/AT32DI (direct or diff.)
Differential
Differential current method
Test socket
Alternative
Equivalent leakage current
method
Test socket, VL2E, AT3 adapter
(AT3-IIIE, AT3-IIS, AT3-IIS32),
AT16DI/AT32DI
AT3 adapter
Feature I01 (e.g. SECUTEST ST PRO):
measurement with AT3 adapter
AT3-IIIE, AT3-IIS, AT3-IIS32
Clamp
Feature I01 (e.g. SECUTEST ST PRO):
Measurement of protective con-
ductor current via current clamp
sensor with voltage output, and
conversion to and display as cur-
rent values.
Permanent connection
Single fault (SFC) – only with direct measurement type
Normal status
Single fault simulation not active
N interrupted
Fault simulation – only phase and protective conductor are con-
nected to the DUT
1
Polarity – only with direct, differential and AT3 adapter measur-
ing methods
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 measurement type only
110 V, 115 V,
220 V, 230 V, 240 V
Selection of a line voltage for synthetic test voltage
Frequency(set) – for alternative measurement type only
48 Hz ... 400 Hz
Selection of a line frequency for synthetic test voltage
Clamp factor – only for clamp measurement type
1 mV : 1 mA
Transformation ratio of the WZ12C current clamp sensor.
For setting the current clamp factor at the WZ12C clamp and the
SECUTEST ST PRO (see table above).
10 mV : 1 mA
100 mV:1 mA
Transformation ratio of the SECUTEST CLIP current clamp sensor.
For setting the current clamp factor at the SECUTEST ST PRO.
1 V : 1 A
Содержание SECULIFE ST BASE 25
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