Seaward 220 PrimeTest - Manual (Page 20)

Operating Instructions
Primetest 220
13
Attention - the protective earth conductor
current measurement can be affected by
exposure of the PrimeTest 220 to magnetic
fields or current being absorbed by the EUT
during differential leakage measurements.
Attention - where the input current waveform
displays a crest factor of 2 then a percentage
error of 2.2% is recorded on the PrimeTest 220
measured value.
8.3 Residual Current Device, RCD, Test
See figure 5
Attention - The Black 4mm test socket must not
be used whilst the PrimeTest 220 is performing
an RCD test. Electric Shock Danger!
8.3.1 Plug the supplied mains power lead into the mains
power socket 13 on the PrimeTest 220.
8.3.2 Plug the other end of the supplied mains power
lead into a mains power socket.
8.3.3 Select the RCD test function on the rotary switch
10 .
8.3.4 Switch on the mains power.
8.3.5 The PrimeTest 220 automatically checks the wiring of
the power socket being used. If the line potentials are
correct then the LCD will display the symbols PE and
PN in the steady state. Where a fault exists then the
appropriate symbol will flash (see Appendix 1) along
with the symbol being displayed in the steady state.
A fault condition will inhibit the RCD test.
If a power test is selected but the mains supply
has not been connected to the PrimeTest 220
then PE and PN symbols will flash and the test
is inhibited.
PrimeTest 220 REV 1 5/12/05 1:52 pm Page 18