5
Fig . 2 Display of reading
(1.00
Ω
)
The instrument can be connected directly to a 230V supply using the 13A plug
fitted on the supply lead or to a 110V supply, using the adaptor supplied. On power
up the EasyPat monitors the supply voltage, adjusts its measurement circuits and
selects the correct test socket accordingly. The display indicates the supply voltage
on which tests will be carried out.
Appliances to be tested should be connected into the appropriate test socket and
should be compatible with the supply voltage to the instrument. If the appliance has an
on/off switch, it should be set to the on position to ensure that the appliance is fully
tested.
If the value for the measured parameter is outside the range of the EasyPat then
the display will show overrange. This is indicated on the display by a single 1. with
no following zeros. Fig. 3 shows the earth continuity display if the measured value
is greater than 1.99
Ω
.
Fig. 3
NB
On the earth bond tests, overrange means above 1.99
Ω
and is a fail.
On the insulation test it means above 19.9M
Ω
and is a pass.
The wander earth lead is a three-wire lead that forms part of the measuring
circuitry: It is important that the wander earth lead is plugged into the front
panel of the EasyPat 2100 whenever the EasyPat is in use.
6
A red light which is located below the display illuminates if the instrument
overheats during a continuity test sequence. All test functions are disabled for as
long as this indicator is illuminated and will only be restored after the instrument
has cooled and the red indicator has turned off. See Fig. 2.
1.2 Earth / Continuity (8A and 25A)
For this test a voltage of 6V AC is applied between the earth pin of the plug of the
appliance being tested and its exposed metal work, via the wander earth lead.
The magnitude of the test current is either 8A or 25A selected by the three
position rocker switch. The high current applied in this test verifies that the
protective earth path will carry the fault current in the event of an insulation
breakdown within the appliance.
1.3 Earth / Continuity (
2
00mA)
The test is similar to that described in 1.2 except that a constant current of
2
00mA
DC is applied. This reduced current is required to test IT equipment whose earth
path could be damaged by the higher currents.
1.4 Insulation
500V DC is applied between the appliance phase and neutral joined together and
earth to ensure that this insulation is at an acceptable level.
1.5 Run Current
The appliance under test is operated at the nominal supply voltage and the
current to it is monitored. Care should be taken to ensure that there is no
mechanical hazard with this test and that the wander earth lead is disconnected.
1.6 Run Leakage
This test is similar to that described in 1.5 except that the current flow in the earth
lead is monitored to check that no potentially hazardous, voltage induced, earth
leakage paths are created when the appliance is operating.
1.7 Flash
This is an optional test that may be omitted. On Class I appliances 1.5kV AC is
applied between the phase and neutral joined together and earth. The flash gun
is not required for Class I appliances but on Class II appliances 3kV AC is applied
between the phase and neutral joined together and the tip of the flash gun which
is touched onto exposed appliance metalwork. This test is a further verification
that functional and supplementary insulation levels have not deteriorated.
Though all tests can be performed in any desired sequence, it is recommended
that the Continuity test is always carried out first on Class I appliances and if this
results in a fail no further tests should be carried out on the appliance until the
fault in its protective earthing has been rectified.
7
For both Class I and Class II appliances, it is recommended that an Insulation test is
successfully carried out before attempting a Run test or a Flash Test.
The results of the tests are displayed on a high contrast 2½ digit LCD which also
indicates the parameter being tested (
Ω
, M
Ω
, mA, A) and also the current supply
voltage which can be either (110 or 230V). See Fig. 2.
1.8 Unpacking & Inspection
Before unpacking the EasyPat, examine the shipping carton for any sign of
damage. Unpack and inspect the EasyPat for any damage. If there is any damage
then consult your distributor immediately.
1.9 Spares & Accessories
Mains Adaptor - 110V plug to 230V Socket MARTL150 *
Wander Earth Lead TL66 *
Flash Gun MARTL166 *
16Amp, FF, 11/4”, HBC Ceramic fuse (Front panel) FUS-FF16 *
IEC Adaptor 230V: 230V 13A plug to IEC320 connector MAREX332 *
Accessory bag, clips to lid of EasyPat and holds earth lead, flash gun etc MARTC151 *
Full range of appliance labels
3 Phase Adaptors
16A, 4 pin
MARTL151
16A, 5 pin
MARTL152
32A, 4 pin
MARTL153
32A, 5 pin
MARTL154
IEC Adaptor 110V: 110V BS4343 plug (yellow) to IEC320 connector MAREX331
*
Included with EasyPat
8
2. SPECIFICATIONS
2.1 Electrical Specification
Supply Voltage:
110V/230V±10% 50/60Hz
Power Consumption:
10/220VA (excluding run)
EARTH CONTINUITY TEST (8A & 25A)
Test Voltage:
6V AC nominal with no load
Test Current:
25A AC nom @ 0.1
Ω
(25A)
8A AC nom @ 0.1
Ω
(8A)
Display Range:
0 - 1.99
Ω
Accuracy of Indication:
±10% of reading ±2 digits
EARTH CONTINUITY TEST (
2
00mA)
Test Voltage:
Test Current:
Range:
130mV DC nominal open circuit
2
00mA DC nominal constant current
0 - 1.99
Ω
Accuracy of Indication:
±10% of reading ±2 digit
INSULATION TEST
Test Voltage:
500V DC -0% +20% at 0.5M
Ω
Short Circuit Current:
1.5mA DC nominal
Display Range:
0 - 19.9M
Ω
Accuracy Of Indication:
±5% ±1 digit of reading
RUN CURRENT TEST
Display Range:
0 - 19.9A
Usable Range:
0 - 13.0A (Dependent on mains plug fuse)
Accuracy of Indication:
±10% of reading ±1 digit
RUN LEAKAGE TEST
Display Range:
0 - 19.9mA AC
Accuracy of Indication:
±10% of reading ±1 digit
