NSRTW_mk3
User’s Manual
7
While charging, the charge LED is orange. When fully charged, the LED changes to green and the
charging stops.
The charge time from a completely discharged state varies with the amount of power the PC allows the
instrument to draw. Charge time is normally around 2H30. If the PC only allows 300 mA, the charge
time can increase up to 5 to 6 hours.
Note:
When connected to a PC, battery charging stops while the PC is in standby.
Note:
It is OK to leave the instrument connected to a PC or USB charger all the time. The smart
charger inside the instrument will stop charging as soon as the battery reaches full-charge.
6.3
Modes of Operation
The
NSRTW_mk3
has four modes of operation:
Mode
Operation
Power Consumption
Idle
Disconnected from USB and not actively
recording - Only keeps time.
Minimal: can stay on for up to 6
months.
Active
Connected to USB – Not recording –
Instrument is fully on and measuring
Instrument draws power from USB to
power itself, and if necessary recharge
its battery. Battery is not depleted.
Recording
USB-connected or not - Fully on and
recording.
If USB-connected, power comes from
USB. If not, power comes from the
internal battery. If not connected the
instrument can record for up to 7 days.
Periodic
WiFi™
Connect (“W”
model only)
From any state, including
Idle
and
Recording
, the instrument can periodically
wake up its
WiFi™
interface and attempt
to connect to a server. If the connection is
not established after 1 minute it falls back
to its original state until the next connection
time.
If USB-connected, power comes from
USB. If not, power comes from the
battery. The
Periodic Connect
feature
consumes battery. This is especially
the case if the connection interval is set
to be short so it occurs often.
Table 1
6.4
LED Indicators
The
NSRTW_mk3
has two LED indicators:
6.4.1
Charge LED
The charge LED is always fully on or off.