3.1.1 Relay Reset
reset the relay,
the
in the position
The
to the last third
when the relay is on.
In order to
set
main range sellector (1)
needle moves
of the scale
By setting the current type selector (2) to the "+",
it shows on the MA 4S, the voltage of the 9 V battery, or resets the relay
immediately and gets armed again.
If the 9V battery voltage are low , the relay will not activated .
There is some time delay between its relay
–
reset attempt of five seconds .
(
loading time of the reset capacitor)
And so the main selector it must be turned in any other position,
than the relay-reset for approximately five seconds .
The relay can be disarmed too, from an accidental mechanical shock.
In any case the relay
–
reset function it will activate it again.
Never let the meter with the main selector at the relay
–
reset
position , because it will stress the battery.
3.1.2 Automatic Battery Monitoring
The electronic battery monitoring causes the tripping of the relay in case of
low battery.
The relay reset is then also blocked electronically.
In any case of replacing the battery, a new relay
–
reset needed,
so to become active.
The internal reference (low
–
battery) voltage are set to (6.5 V)
