CEMB USA N500 - Manual (Page 8)

1 - 4 General description
Caution:
It is strongly recommended to recharge the battery with the instrument switched
off: as recharging is completed within less than five hours such precaution prevents
the battery charger from being connected for an excessively long period of time
(max. 12 hours).
Caution:
The lithium battery is able to withstand the recharging-discharging cycles, even on
a daily basis, without problems but it could become damaged if allowed to be fully
discharged. For this reason it is advisable to recharge the battery at least once every
three months, even in the case of extended idle period.
N.B :
As the greater consumption is due to the back lighting of the LCD display, the
latter is switched off automatically after two minutes if no button is pressed. The
pressing of any button (except for and those of the alphanumeric keypad) is
sufficient to switch the back lighting on again.
Caution:
If the N500 instrument is provided with battery charger Accord, when plugging the
adapter in the socket on the instrument make sure of the correct polarity, by
keeping the + symbol on the same side as the wording TIP, as shown in the
following image. If not, there is risk of damaging the instrument.
General advice
Keep and use the instrument far from sources of heat and strong electromagnetic fields
(inverters and high-power electric motors).
Measurement accuracy could be impaired by the connection cable between the transducer
and instrument, therefore it is recommended to:
- not allow such cable to have sections in common with power cables;
- prefer a perpendicular arrangement when overlapping power cables;
- always use the shortest possible length of cable; in fact floating lines would act as
active or passive antennae.