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SVANTEK 977W User Manual
14. MAINTENANCE
14.1. Powering the instrument
The
SVAN 977W
can be powered by one of the following sources:
Four AA standard size internal batteries. In case of alkaline type, a new fully charged set can operate
more than 12 h (6.0 V / 1.6 Ah). Instead of the ordinary alkaline cells, four AA rechargeable batteries
can be used (a separate external charger is required for charging them). In this case, using the best
NiMH type, the operation time can be increased up to 16 h (4.8 V / 2.6 Ah)
External DC power source
– 7 V DC÷16 V DC (1.5 W)
SA 17A external battery pack
– operation time > 24 h (option)
USB
interface
– 500 mA HUB
SVAN 977W
is delivered with four AA alkaline batteries, but the user may also use AA rechargeable batteries.
The “
battery
” icon shows the condition of the internal batteries.
The instrument is not equipped with an internal charger; therefore, the rechargeable batteries can be charged
only after removal them out of the instrument with the use of optionally provided charger (
SA 31
).
To change or charge the batteries the user
should switch off the instrument, unscrew
the bolt, take off the black bottom cover of
the instrument and slide the battery tubes
out.
Note: While changing the batteries, observe the correct polarity.
Powering the instrument from the USB interface is performed by connecting its
USB
socket to the PC or other USB power source via the
SC 16
cable.
Powering the instrument from the external 6 x AA battery pack (
SA 17A
) or DC
power source 7 V DC÷16 V DC, 1.5 W (
SA 15
) is performed via
7
–16 V
socket.
When the instrument is powered from the external power source the internal batteries are automatically
disconnected. Once disconnected from the external power source, the instrument will automatically switch
powering to the internal batteries.
Note: Use only high quality USB cables, such as SC 16. Many poor-quality cables do not ensure
low resistance of the cable, thus disabling proper operating of the instrument.
14.2. Memory card extraction and insertion