EN-6
4-1 Voltage Measurement
When the Loop and PSC Testers are first powered up by
connecting them to the mains, they automatically display
the mains voltage. The voltage display is updated
automatically every 0.5s. When the test button is
depressed (see section 5.1 first) the voltage mode is
cancelled. To recall the voltage measurement mode,
the power to the instrument must be removed and then
restored again.
4-2 Manual and Autotest
Manual-Press and release the “Test Button”. The result
will be displayed for 3s and then the display will revert to
zero.
4-3 Automatic Overheat Cut-Out
To test in accordance with the IEE regulations Loop and
PSC testers may dissipate up to approximately 6kW of
energy during the test period, so that after repeated use
the test resistor may overheat. When the temperature
reaches a level that may damage the resistor the
instrument automatically locks out. This is indicated by
the appropriate over temperature symbol in the digital
display.
When the resistor has cooled down, normal testing may
continue.
