FIRST STOP SAFETY 24
MemoryPAT-Blu Issue 1.2
Once the testing is complete, record the results and the unique test number in
the Test Record.
TESTING SURGE PROTECTED APPLIANCES
The default test voltage for Insulation Resistance is 500V and this works well with
the majority of appliances. However ones fitted with surge protection can fail
when tested at this voltage. This is due to the 500V test voltage being seen as a
potential surge by the protection devices which start to limit at this level.
When this type of appliance is encountered the recommendation is to test at the
lower voltage of 250V. Pressing the 500V/250V allows the user to toggle
between these two test voltages. The LCD display will show the chosen voltage.
This will reset to the default when the MemoryPAT-Blu powers down.
Plug the appliance into the MemoryPAT-Blu and connect the test lead as normal
to an earthed part. Make sure the appliance power switch is ON.
Press the 500V/250V switch once to select 250V for the Insulation Resistance
test. The selection appears on the display as shown below.
Once the user has selected the appropriate test voltage the test is carried out as
normal by pressing the relevant test button. The display will show the test results
and also indicate the chosen Insulation Resistance test voltage as shown below.