Megger PAT320 Specifications
PAT300 series
Portable appliance testers
n Simple manual or automatic testing
n 230 V and 110 V operation
n Bond testing at 25 A,10 A and 200 mA
n Differential, touch and substitute leakage
testing
n Full colour display
n Tests portable RCDs and extension leads
PAT300 SERIES
Portable Appliance Testers
DESCRIPTION
An easily portable desktop appliance tester for testing the
safety of portable electrical equipment to meet health and
safety regulations. The PAT300 series are fully featured
testers with dedicated test buttons for direct access to tests.
They are designed for customers who do not require the
complexity of a fully configurable database of clients and
results within the tester but do need a complete range of
functions to allow automatic or manual testing of the
widest range of electrical assets. There are two products in
the range – the PAT320 and the PAT350. The PAT350 is
identical to the PAT320, with the addition of flash-test
capability for use in environments such as manufacturing,
production or tool-hire shops.
Simple push-button operation make the PAT300s fast and
intuitive in use. All regulatory test requirements are supported,
including Class I and Class II, IEC power leads, extension
leads and full tests for portable RCDs. An automatic mode is
available for Class I and Class II testing. In automatic mode,
the tests proceed sequentially through bond, insulation
and operation, indicating a pass or fail at each test. If a fail
occurs, testing is stopped. When manual testing, each test
is preceded by a selection screen where the test parameters
are selected, such as bond test current, insulation test voltage or leakage test type. These diagnostic buttons provide
direct access to any test individually, allowing single tests to
be performed following repair or a suspect result.
APPLICATIONS
There is a legal requirement for any landlord, employer or
owner of a place of work or public place, to ensure that all
electrical equipment accessible by tenants, employees or the
public is maintained in a safe condition, and an acceptable
method of ensuring this is by routine electrical testing. This
can be performed by electrical contractors, specialist PAT
testing organisations, maintenance departments, or facilities
management companies.
The PAT300 range is suitable for performing portable
appliance testing in locations such as hotels, public houses,
schools, colleges, nurseries, shops, offices, theatres, banks,
restaurants, cafés, sports and leisure facilities, cinemas,
factories and hair salons etc. The PAT350 is suitable for use
in tool-hire shops where equipment is routinely tested prior
to hire, and will perform a flash test in addition to standard
PAT tests.
Accessories supplied with all models include a combined
earth-bond and insulation test lead, an adaptor for testing
extension leads, and a carry-case convenient product and
lead storage.
PAT300 SERIES
Portable Appliance Testers
SPECIFICATIONS
Electrical supply range
230 V a.c. 230 V a.c. ± 10%
110 V a.c. 110 V a.c. ± 10%
Supply measurement
Voltage: ± 2% ± 1 V
Frequency: ± 1% ± 0.1Hz
Bond test
Open circuit voltage: 9 V a.c. ± 10% ± 0.1 V (Supply: 230 V 50Hz)
10 A Bond test current:
10 A rms ±20% ± 0.5A into 0.1 Ω
25 A Bond test current:
25 A rms ± 5% ± 0.5 A into 0.1 Ω
Earth bond resistance accuracy:
±5% ±3 digits (0 to 0.49 Ω)
±5% ±5 digits 0.5 to .99 Ω)
Earth bond resistance resolution:
10 mΩ (0 to 1.99 Ω)
Display range: 0 to 1.99 Ω
Bond test nulling: Up to 1.00 Ω
Adjustable test duration:
User selectable from 1 sec to 20 sec
Continuity test
Note:
The continuity test is a DC test performed automatically
in both positive and negative directions. The average of
the two results is shown.
Continuity test voltage:
4.0 V d.c. -0% +10% (open circuit)
Continuity test current:
200 mA -0% +10% ±5 mA (into 2 Ω load)
Continuity resistance accuracy:
±5% ±3 digits (0 to 0.49 Ω)
±5% ±5 digits 0.5 to .99 Ω)
Continuity resistance resolution:
10 mΩ (1 to 19.99 Ω)
Display range: 0 to 19.99 Ω
Continuity test nulling:
up to 9.99 Ω
Test duration: User selectable from 1 sec to 20 sec
Insulation test
Insulation test voltage:
250 V d.c. –0%/+25% open circuit
500 V d.c. –0%/+25% open circuit
(500 V d.c. across 0.5MΩ)
Insulation resistance accuracy (230 V):
±2% ±5 digits (0 to 19.99 MΩ)
±5% ±10 digits (20 to 99.99 MΩ)
Insulation resistance accuracy (110 V):
±5% ±5 digits (0 to 10 MΩ)
Insulation resistance resolution:
0.01 MΩ (0.10 to 99.99 MΩ)
Display range: 0 to 99.99 MΩ
Test duration: User selectable from 1 sec to 1 minute
Substitute leakage test
Test voltage: 40 V a.c. ±10%
Test frequency: Nominal mains 50/ 60Hz
Leakage current accuracy: ±5% ±5 digits
Leakage current resolution: 0.01 mA
Display range: 0 to 19.99 mA
Test duration: User selectable from 1 sec to 1 minute
Reading corrected to 230 V + 10% or 110 V + 10% a.c.
Differential leakage current
Test voltage and frequency: Nominal mains supply
Differential leakage current accuracy: ±5% ± 0.05mA (1.0mA
to 19.99mA)
±5% ± 0.1mA (0.1mA
to 0.99mA)
Differential leakage current resolution: 0.01 mA
Display/measurement range: 0.10mA to 19.99 mA
Touch current test
Test voltage: Nominal mains 115/230 V a.c.
Test frequency: Nominal mains 50 /60Hz
Touch current accuracy: ± 5% ±5 digits
Touch current resolution: 0.01 mA
Display range: 0 to 10 mA
Test duration: User selectable from 1 sec to 5 sec
Reading corrected to 230 V + 10% or 110 V + 10% a.c.
Operational test
Test voltage: Nominal mains 110/230 V a.c.
Accuracy: ±5% ±10 digits (0 to 99 VA)
±5% ±50 digits (100 VA - 999 VA)
±5% ±100 digits (1000 VA - 3700 VA)
Resolution: 1 VA (0 to 3700 VA)
Display range: 0 to 3.99 KVA
Reading corrected to 230 V or 110 V a.c.
Results show load VA
Extension lead test
Test includes insulation and bond tests.
Polarity test voltage: 12 V
Polarity: Lead OK
Live neutral S/C
Live neutral reversed
Live/neutral O/C
Flash test
Flash test voltage: 1500 V a.c nominal for Class 1
3000 V a.c nominal for Class 2
Flash test current: < 3.5 mA short circuit @ 253 V primary supply
voltage
Flash test breakdown current accuracy: ±5% ±5 digits
Flash test breakdown current resolution: 0.01 mA
Display range: 0 to 3.0 mA
Test duration: User controlled
Portable RCD test
RCD test voltage: Nominal mains 110/230 V
RCD test frequency: 50Hz
Test current accuracy: -8% to –2% (1⁄ 2 x I)
+2% to +8% (1 x I, 5 x I)
Trip time accuracy: ±1% ±5 digits
Trip time resolution: 0.1 ms
Display range: 0 to 1999 ms (1⁄2 x I)
0 to 300 ms (1 x I)
0 to 40 ms (5 x I)
Fuse test
Test voltage: 3.3 V
Warning: Audible beep if fuse is OK
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