Gossen MetraWatt SECULIFE ST PRO, Руководство пользователя, Страница: 8 / 114

8 GMC-I Messtechnik GmbH
2.1 Test Instructions for Applied Parts Measuring Functions
The test instrument itself should be tested at regular intervals in
order to assure the correctness of measurements and tests. This
is possible by performing just a few measurements with a multi-
meter and the SECU-cal 10 calibration adapter. This applies in
particular to measurements at the APP sockets because possible
defects in the APP sockets’ multiplexer are difficult to detect.
Please observe the additional operating instructions included with
the SECU-cal 10 calibration adapter.
2.1.1 IP – Patient Leakage Current
Testing the Measuring Function
➭
Connect the SECU-cal 10 to the test socket.
➭
Select the “ IP ” measurement with the rotary switch.
➭
Select the “ Direct APP ” measurement type:
➭
Select single fault “ PE interrupted ” from the menu.
➭
Select test condition “ None ” from the menu.
➭
Set all APPs (A - K) to “ on ” in the menu.
➭
Connect APP socket A to the 0.3
Ω
socket at the SECU-
cal 10.
➭
Select the desired leakage current (e.g. 115 μA) at the SECU-
cal 10.
➭
Start the “ IP Direct APP ” measurement.
➭
If the desired amperage does not flow, start the measurement
again with reversed mains polarity.
➭
If the desired amperage does flow, the APP socket is OK.
➭
Connect the next APP socket to the 0.3
Ω
socket at the
SECU-cal 10.
➭
This measurement must be repeated for all 10 APP sockets.
➭
Stop the “ IP Direct APP ” measurement.
Testing the Isolating Function
➭
Connect the SECU-cal 10 to the test socket.
➭
Select the “ IP ” measurement with the rotary switch.
➭
Select the “ Direct APP ” measurement type:
➭
Select single fault “ PE interrupted ” from the menu.
➭
Select test condition “ None ” from the menu.
➭
Set only APP socket A to “ on ” in the menu.
➭
Connect APP socket A to the 0.3
Ω
socket at the SECU-
cal 10.
➭
Select the desired leakage current (e.g. 115 μA) at the SECU-
cal 10.
➭
Start the “ IP Direct APP ” measurement.
➭
If the desired amperage does not flow, start the measurement
again with reversed mains polarity.
➭
If the desired amperage flows, connect APP socket B to the
0.3
Ω
socket at the SECU-cal 10.
➭
The display may not indicate any more than 10 μA at APP
socket B.
➭
Connect the next APP socket to the 0.3
Ω
socket at the
SECU-cal 10.
➭
These measurements must be repeated at APP sockets C
through K.
➭
Then select APP socket B with the APP key.
➭
Connect APP socket A to the 0.3
Ω
socket at the SECU-
cal 10.
➭
The display may not indicate any more than 10 μA at APP
socket A.
➭
Stop the “ IP Direct APP ” measurement.
Testing the Earthing of the Other APP Sockets
➭
Connect the SECU-cal 10 to the test socket.
➭
Select the “ IP ” measurement with the rotary switch.
➭
Select the “ Direct APP ” measurement type:
➭
Select single fault “ normal status ” from the menu.
➭
Select test condition “ APP > PE ” from the menu.
➭
Set only APP socket A to “ on ” in the menu.
➭
Start the “ IP Direct APP ” measurement.
➭
Measure resistance between APP socket B and the 0.3
Ω
socket at the SECU-cal 10 with a multimeter.
➭
Resistance must be less than 50
Ω
.
➭
These measurements must be repeated at APP sockets C
through K.
➭
Then select APP socket B with the APP key.
➭
Measure resistance between APP socket A and the 0.3
Ω
socket at the SECU-cal 10 with a multimeter.
➭
Resistance must be less than 50
Ω
.
➭
Stop the “ IP Direct APP ” measurement.
2.1.2 IA – Leakage Current from the Applied Part
Testing the Measuring Function
➭
Connect the SECU-cal 10 to the test socket.
➭
Select the “ IA ” measurement with the rotary switch.
➭
Select the “ Direct APP ” measurement type:
➭
Set all APPs (A - K) to “ on ” in the menu.
➭
Connect APP socket A to the 1 mA socket at the SECU-
cal 10.
➭
Start the “ IA Direct APP ” measurement.
➭
The SECULIFE ST PRO should indicate approximately 1 mA.
➭
If a significantly lower value is displayed, start the measure-
ment again with reversed mains polarity.
➭
If an amperage of approximately 1 mA is indicated, the re-
spective APP socket is OK.
➭
Connect the next APP socket to the 1 mA socket at the
SECU-cal 10.
➭
This measurement must be repeated for all 10 APP sockets.
➭
Stop the “ IP Direct APP ” measurement.
Testing the Isolating Function
➭
Connect the SECU-cal 10 to the test socket.
➭
Select the “ IA ” measurement with the rotary switch.
➭
Select the “ Direct APP ” measurement type:
➭
Set only APP socket A to “ on ” in the menu.
➭
Connect APP socket A to the 1 mA socket at the SECU-
cal 10.
➭
Start the “ IP Direct APP ” measurement.
➭
The SECULIFE ST PRO should indicate approximately 1 mA.
➭
If a significantly lower value is displayed, start the measure-
ment again with reversed mains polarity.
➭
If an amperage of approximately 1 mA is indicated, connect
APP socket B to the 1 mA socket at the SECU-cal 10.
➭
The display may not indicate any more than 10 μA at APP
socket B.
➭
Connect the next APP socket to the 1 mA socket at the
SECU-cal 10.
➭
These measurements must be repeated at APP sockets C
through K.
➭
Then select APP socket B with the APP key.
➭
Connect APP socket A to the 1 mA socket at the SECU-
cal 10.
➭
The display may not indicate any more than 10 μA at APP
socket A.
➭
Stop the “ IA Direct APP ” measurement.