TRIO TeST & MeaSUReMeNT
11
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1 Ensure the
SafeTcheck
is in the ready to test mode
i.e. the Start Prompt appears on the LCD Display.
2 Plug the appliance to be tested into the socket labelled
INSULATION RESISTANCE provided on the front panel
of the
SafeTcheck
. The appliance should be connected
directly and not via an extension lead.
3 Connect the Return Lead to the unit via the Earth Return
Socket
4 Connect the Return Lead to a convenient metal (conductive)
point of the appliance under test.
If any earthed appliance has one or more metal components
which are possibly not connected together, the overall test
must be repeated with the Return Lead connected to each
metal component in turn.
5 Switch the appliance to be tested ‘ON’
Note:
Any or all switches must be "on" to ensure testing
of the appliance's complete electrical circuit.
6 If the appliance to be tested has a variable speed or
thermostat control fitted, turn the control to its highest
setting, this will connect Active/Neutral direct to the internal
windings.
7 Select EARTHED APPLIANCE. The
SafeTcheck
is now
ready to test the appliance.
5 Switch the appliance to be t
ested ‘ON’
Note:
If Data Logging is switched on then additional
information will be requested. See section entitled
”Data Logging”
The green indicator alongside "Start" will now be flashing.
5 Switch the appliance to be t
ested ‘ON’
Note:
During the test cycle the user should apply stress to
the supply lead and plug in order to detect any intermittent
faults. This is a ‘real world’ dynamic test.
8 Test results will be displayed on the LCD along with audible
tones and flashing LEDs.
a) Pass –
'Thumbs Up' and PASS indication on LCD
and a short BEEP with a GREEN indicator flashing
along side "Start".
b) Fail –
'Thumbs Down' and/or LCD Prompt indicating
the most probable reason for failure with:
The measured value (if enabled), a continuous BEEP
and a RED indicator flashing alongside "Reset".
Note 1:
A FAIL indicating “poor continuity” denotes lack
of a circuit path between the Active and Neutral of the
appliance. If the appliance switch is on and this error
occurs then go to the RUN TEST.
WaRNINg
To avoid uncertain results when testing an earthed
appliance, ensure that:
1 The earth clip is securely attached to the
metal frame.
2 The appliance under test has been disconnected
from all other equipment.
3 The test is conducted on an insulated or
(non metallic) benchtop.
Note 2:
For a FAILED earthed appliance known to be
fitted with surge protection i.e. metal oxide varistors
(MOVs), test again using Class 2 (250V) test, see
OTHER APPLIANCES.
Note 3:
For appliances with no class identification, no
accessible earth and having 3 pins on the plug, a standard
earthed appliance test may fail, see OTHER APPLIANCE
menu.
Evaluation of in–service testing results for
erthed appliances
Evaluation of in–service testing results for earthed appliances
Where the
SafeTcheck
identifies an appliance which fails
to comply with the test criteria, the equipment shall be:
1 Withdrawn from service immediately and have a label
attached to it warning against further use.
2 Repaired by the appropriately qualified
person and retested after repair.
3 Refit test identity tags/labels etc. and log
test in safety history records.
WaRNINg
Upon completion of a safety test and subsequent removal
of test lead and/or stainless steel cloak, please ensure all
switches, speed or thermostat controls are returned to
their ‘OFF’ or minimum position.
Safety testing earthed appliances
