ELABO G7-1G, Руководство по эксплуатации

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PE
G7-1
X3-2
X3-1
X3-5
X3-4
PE
X10
X11
PE
G7-1
X3-2
X3-1
X3-5
X3-4
PE
X10
X11
3. MAKEREADY
Connection box
PE probe
Mains plug
X1
Mains plug
X1
Test object
Sense2
Connection box
Test object
Sense1
Sense2
Connection for ISO-Testing
See High Voltage test.
Connection for PE-Testing
Fig. 3.3b: Principle of connection PE - via box and PE-test probe (four
wire measuring)
Note: Place the PE-probe in the fixture holder. No connection to the test
object chassis, has to be present.
Fig. 3.3a: Principle of connection PE - via box with-out test probe (four
wire measuring)
Note: The connection to the object chassis should be switch-able by a
suitable switching element K1 (provision of material by customer). This is
required, to prevent a feedback of the test voltage (ISO-/HV test) to the
tester. X3-5/X3-4 are shorted inside the device by a relay to PE. Open the
connection to the object chassis over K1, before start up an ISO-/HV-test
and also before using the PE-test probe for PE-testing.
At using the PE-test probe - no other connection to the object chassis,
has to be present (Fig. 3.4d). In case of other connections to the chassis,
it is possible to get significant measurement errors.
K1
Combi-tester G7-1G/-1H/-1T/-1U