Seaward 200 PrimeTest - Manual (Page 17)

7.9 RCD test
Test current 30mA r.m.s
Test current accuracy +5%, - 0%
Test duration 500ms maximum if RCD does not trip
Trip time accuracy ±10%
An input voltage of ≥ 30 V AC/DC, detected between the + and - input measuring
terminals, disables the RCD test function. A repetitive audible alarm is activated
and a flashing high voltage symbol is displayed on the LCD.
The test is disabled when phase - neutral (PN) or phase -earth (PE) voltage is
not at mains potential or a voltage of 40 VAC or greater exists between
neutral - earth (NE).
8.0 Operation of test functions
8.1 Safety test, Class I
See figure 3
8.1.1 Select the Class I test function on the rotary switch 10 . Ensure the
IEC mains lead is disconnected from the PrimeTest 200.
8.1.2 The LCD will display a probe signal to indicate that an earth bond test
lead is required. This test function is selected when the equipment to be
tested is fitted with a protective earth conductor.
8.1.3 Plug the equipment under test (EUT) into the EUT socket 11 on the front
of the PrimeTest 200.
8.1.4 Plug the black test lead into the negative, black socket 12 on the
PrimeTest 200.
8.1.5 Connect the other end of the black test lead to exposed metalwork on
the EUT.
8.1.6 To start a Class I safety test sequence, press the button 9 .
8.1.7 The earth continuity resistance for the EUT is measured at ± 200mA. The
large display 2 indicates the highest digital and analogue earth
resistance,
Ω , the small display 3 indicates a PASS/FAIL status. An
additional visual display of a ✓ or ✗ also indicates the PASS/FAIL status.
8.1.8 Earth continuity resistance value is held on the LCD display for a period
of 1 second. A PASS or FAIL indication will be shown, depending on
value of the displayed reading.
8.1.9 An earth continuity resistance that fails will terminate the Class I PAT
test, a PASS will automatically sequence to the insulation resistance
test.
During an insulation resistance measurement a high voltage is
applied between the Live/Neutral and Earth of the EUT. It should be
noted that this voltage can also be present on the bare metalwork
of the EUT.
8.1.10 The insulation resistance of the EUT is measured over a period of 2
seconds. The large display 2 indicates digital analogue insulation
resistance, M
Ω , the small display 3 indicates a PASS/FAIL status. An
additional visual display of a ✓ or a ✗ also indicates PASS/FAIL status.
8.1.11 The insulation resistance value will remain displayed until another rotary
switch action.
PrimeTest 200
Operating Instructions
7