Test Equipment

PAT420
Portable appliance tester

  • 10,000 memory storage with USB download
  • Large 5.7” ¼ VGA backlit full colour screen
    for clear results
  • 200 mA; 10 A and 25 A Bond Test with high
    duty cycle for repetitive testing
  • Selectable PASS/FAIL limits provide instant
    indication of a faulty asset
  • Optional barcode scanner and printer
    available to save time typing asset IDs
  • 230 V operation for industrial,
    commercial and residential applications

DESCRIPTION
The PAT420 from Megger is a new generation of downloading portable appliance testers, fully testing portable electrical equipment to the latest edition of the Code of Practice for the In-Service Inspection and Testing of Electrical Equipment. The PAT420 provides the same extensive memory and downloading capability and also 10 A and 25 A earth bond testing.

USB communication provides convenient download to a standard USB memory stick., and an on-board 10,000 record memory provides interruption-free testing for improved efficiency, with a large QWERTY keypad for fast data entry. Data is directly compatible with Megger PowerSuite® software for professional certification, and all products have the option of a barcode scanner and a thermal transfer barcode label printer operating directly from the USB port. Thermal transfer labels are highly resistant, stable and easily available.

5 soft-keys give direct access to frequently used functions, accelerating navigation through menus and therefore increasing productivity, where time is money. Both standard and customer configurable test groups are available for fast, flexible asset testing.

Tests available in the range include 250 V and 500 V insulation tests, 200 mA, 10 A and 25 A earth bond tests, differential, touch and alternative (substitute) leakage tests, operational VA tests, RCD trip-tests for portable RCDs, anti-surge and RCD protected extension leads and power cords. RCD testing is now a requirement of the UK Code of Practice.
Accessories supplied with all models include a combined earth-bond and insulation test lead, an adaptor for testing 230 V extension leads, a laptop power supply adaptor, and a carry-case for convenient product and lead storage. All instruments also include Download Manager software, to enable data to be converted into a CSV format which can be read directly on a PC using Microsoft® Excel.

Megger PowerSuite software can be purchased to compliment any PAT400, providing full databased asset management and professional electronic certificate generation, providing options for multiple clients and locations.

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 PAT420 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. where high volume testing requires that accurate records may be difficult to maintain, or aided by, on-board memory and download to management software.

  PAT420
SUPPLY  
230 V
 
Suppy measurement
 
EARTH BOND/CONTINUITY  
200 mA
 
10 A
 
25 A
 
Bond lead null
 
ALTERNATIVE LEAKAGE TESTS  
Subtitute
 
Differential
 
Touch current
 
OPERATION TEST  
VA Measurement
 
EXTENSION LEAD TESTS  
Earth bond
 
Insulation
 
Polarity
 
Portable RCD tests
 
FLASH TEST  
1.5 kV and 3 kV  
OTHER FEATURES  
Low-profile light weight  
Auto test routine
 
Manual testing
 
Fuse check
 
Colour display
 
Configurable tests times
 
Selectable pass limits
 
Lead storage pouch
 
10,000 record on-board storage
 
Download to USB memory stick
 
PowerSuite compatible
 
SPECIFICATIONS
Electrical supply range
PAT420 230 V ± 10% @ 50/60 Hz
  ±10% @ 50/60 HZ
 
Bond test (10 A and 25 A)
Open circuit voltage: 9 V a.c. ± 10% ± 0.1 V
  (Supply: 230 V 50Hz)
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
 
Continuity test (200 mA)
Continuity test voltage: 4.0 V d.c. -0% +10%
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
 
Insulation test (250 V and 500 V)
Insulation resistance accuracy (230 V): ±2% ±5 digits (0 to 19.99 MΩ)
  ±5% ±10 digits (20 to 99.99 MΩ)
Insulation resistance resolution: 0.01 MΩ
Display range: 0 to 99.99 MΩ
 
Substitute leakage test
Test voltage and frequency: 40 V a.c. ±10% nominal mains frequency
Leakage current accuracy: ±5% ±5 digits
Leakage current resolution: 0.01 mA
Display range: 0 to 19.99 mA
 
Differential leakage current
Test voltage and frequency: Nominal mains supply
Differential leakage current accuracy: ±5% ±5 digits
Differential leakage current resolution: 0.01 mA
Display range: 0 to 19.99 mA
 
Touch current test
Test voltage and frequency: Nominal mains supply
Touch current accuracy: ±5% ±5 digits
Touch current resolution: 0.01 mA
Display: 0 to 10 mA
 
Operational test
Test voltage and frequency: Nominal mains supply
VA rating: 230 V 3700 VA
VA accuracy: ±5% ±10 digits (0 - 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 3990 VA
 
Extension lead test
Tests performed: Bond, insulation and polarity
Polarity test voltage: 12 V
Polarity checks: Lead OK
  Live neutral S/C
  Live neutral reversed
  Live/neutral O/C