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instrument will not perform a test. The high voltage warning indicators
flash, and the beeper sounds, to warn of the hazard until the external
voltage becomes less than 50 V.
When testing, the voltage displayed is the voltage present at the test
terminals of the instrument. If the test voltage is changed, by pressing
either of the test voltage
s
and
t
buttons during a test, the new test
voltage is displayed momentarily.
After testing, the voltage displayed is the voltage present on the terminals.
To see what the voltage was immediately prior to the end on the test,
press either test voltage
s
or
t
buttons.
Timer indicator
The timer shows minutes and seconds. At the start of a test the timer will
start from zero and at the end of a test it will stop. The duration of the last
test remains on the display until another test is started.
Digital Display
The digital display shows the resistance or current being measured during
a test. The
Ω
/I
button toggles between the two. After a test the display
shows the last measurement made until the timer or voltage test settings
are changed or the test start/stop button is pressed.
Analogue display
This simulates an analogue meter movement to give the user a better
"feel" for how a measurement is progressing. The analogue display shows
resistance only.
Battery bar graph
This is a battery symbol on the LCD display comprising 4 pairs of
segments. The battery is monitored continuously when the instrument is
turned on. The charge remaining in the battery is shown in the table
below.
Fully charged battery
50% charged battery
Tests cannot be started, and the battery may fail
at any time.
Symbol flashes when there is not enough charge
for a test. The instrument then turns itself off
When mains power is present the indicator shows the battery is being
charged by animating the segments of the bar graph.
Voltage at terminals
The test voltage will default to that selected in the previous test. If the
instrument has been switched off since the previous test, the test voltage
defaults to 250 V.
If there is an external voltage greater than 50 V present, this will be
displayed regardless of changes made to the test voltage. In this case the
