Tests testers
March 1st 2008 In keeping with the advice
included in the latest IEE Code of
Practice for In-Service Inspection
and Testing of Electrical
Equipment, Seaward Electronic's
Checkbox is designed to check
the accuracy of PAT testers and
confirm that test readings remain
valid during the period between
formal re-calibration.
Lightweight and easy to
operate, the device can be used
to check all Seaward's PATs, as
well as those from other makers.
When connected to a PAT it will
automatically simulate earth bond,
insulation, flash and
earth leakage tests. A
simple comparison of
the value displayed on
the PAT against the
specified limits
detailed on the rear of
the Checkbox
provides immediate
indication of the
accuracy of the
instrument.
Although not designed to
provide the basis of a complete
calibration system, regular use of
the Checkbox will ensure correct
functionality of test instruments in
the field. More articles from Seaward Group: | 
