Seaward 300 PrimeTest - Manual (Page 47)

PrimeTest 300 Operating Instructions
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part. Press the green START key to begin the test. The
test will run for the duration set. To end the test before
the test time expires press the red STOP key.
Note: The PrimeTest display will show real time
measurements during an Earth Continuity test.
The reading shown at the end of the test is the
peak value recorded during the test. This can
be used to detect a momentary break in the
earth path e.g. damaged power cords or loose
mains plug connections.
A Pass or Fail is determined by comparing the
peak value measured during the test with the
pre-set limit.
11.2 Insulation Resistance
Refer to Fig. 4
This test is applicable to Class I and Class II
equipment.
This test is used to verify that the mains supply pins are
adequately insulated from earth.
During this test, 500V D.C. is applied between
the earth pin and both the live and neutral pins
of the appliance mains supply plug.
Press Setup (F3) to set the Test Duration and Pass/Fail
limit. Use the arrow keys to highlight and set. Press OK
(F4) when complete. Esc (F2) will exit setup mode
without saving changes.
Press Class (F2) to set the class of the appliance under
test. For a Class II appliance the probe symbol will be
displayed at the top of the LCD display.
For both Class I and Class II appliances fit the
Appliance mains plug into the EUT outlet. For Class II
appliances only connect the Earth Bond lead to the
appliance. Press the green START key to begin the test.
The test will run for the duration set or until the red
STOP key is pressed.