Megger PAT32 Serie Guide De L'utilisateur page 12

All manuals and user guides at all-guides.com
Appliance Testing
resistance figures are available and lead length is
measured.
A reading of between 100 mΩ and 500 mΩ will be
indicated on the broken scale line together with the display
of . Refer to the appliance manufacturer.
Readings greater than 500 mΩ are indicated by t h e
flashing display of the word FAIL.
On the 10 Amp range, the flashing display of
appear for resistance greater than 600 mΩ, indicating that
the test current is below a satisfactory test level. It is
suggested that the 25 A m p range should then be used.
Insulation Te s t
Class I Appliance
1. Press and hold the Insulation Test switch. The
Insulation screen is displayed.
2. Insulation resistance value is displayed directly
in M .
3. Release the Test switch.
12
As a general rule, Class I appliances should have an
insulation resistance value greater than 1 M .
A reading of less than 0.25 M
FAIL.
Class II Appliance
1. Connect the Earth Bond test lead (or probe if
available) to the 10A/25A terminal.
w i l l
2. Press and hold the Insulation Test switch. The
Insulation screen is displayed.
3. Using the crocodile clip, probe areas of likely
leakage around the insulation areas. i.e. joins /
apertures / metal parts.
4. Release the Test switch.
5. Disconnect the Earth Bond test lead.
As a general rule, Class II appliances should have an
insulation resistance value greater than 2 M .
A reading of greater than 2 M
scale line together with the word PASS.
A reading of less than 0.25 M
FAIL.
is indicated with the word
is indicated on the solid
is indicated with the word