B&K Precision XLN60026 - Manual - Manual (Page 17)

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2.4 Storage
The storage temperature range of this product is within -10ºC - 70ºC and
R.H. should be within 80% without moisture condensing. If not operating
this product for a long time interval, pack it with original packaging or
similar one and put it in a dry place without exposure to direct sunlight.
2.5 Power-line voltage
Rated AC power source connected to this product is within 100 V-240 V
(refer to the Product Specification for details). Before connecting to external
power source, be sure that the power switch is in OFF state and verify the
suitability of power cable (including the extension line). It should be
compatible with the rated voltage/current and should be firmly connected.
Warning:
The power cable attached with this product is certified
for safety. To change a cable or add an extension cable,
be sure that it can meet the required power ratings of
this product. Any misuse with an additional cable
would void the warranty of this product.
2.6 Fuses
This product is a switching mode power supply. The fuse installed inside is a
multi-barrier protection hardware design. It should not break under normal
operation. In case the fuse does melt, it indicates another malfunction that
causes the fuse to break. In this case, it is suggested to send this product
back to service.
Warning:
Any disassembling of the casing or changing the fuse not
performed by an authorized service technician will void
the warranty of the instrument.