CEMB USA N300 - Manual (Page 11)

General description 1 - 5
Warning:
Recharge the instrument before storing it if you do not intend to use it for a long
period of time. In this case, remember to recharge it every 3 months: the internal
clock also consumes power (even though the amount consumed is low), therefore
after a long period of disuse it is possible that the battery will be flat.
Alternatively, the battery can be disconnected before storing the instrument for
long periods of time: remember that in this case the date and time will need
resetting the next time the instrument is used. In the case of the second hypothesis,
to maximise the battery life it should be fully charged at least every 8-9 months.
Adjustment and calibration
Before delivering the N300 instrument to the client, CEMB laboratories subject it to a
complete adjustment, calibration and test procedure to guarantee it works correctly.
General advice
Store and use the instrument away from sources of heat and considerably strong
electromagnetic fields (high-power inverters and electric motors).
Measurement precision can be invalidated by the connection cable between the transducer
and the instrument, therefore we recommend that:
-
the cable does not share the same path as the power cables;
-
any power cables crossed should be overlapped perpendicularly;
-
the shortest possible cable should be used; in fact floating lines act as active and
passive aerials.
Warning:
Always pay the utmost attention during measurement operations, using suitable
protective devices when possible to safeguard the operator from moving parts
When not possible, always leave an adequate safety distance between them.