NSRTW_mk3
User’s Manual
25
7.5.4
Cursor, Zoom and Pan
Cursor, Zooming and Panning is done the same way as in the
Records
graphs. See section
The auto-scale button can be pressed or released to obtain an automatic or fixed vertical scale. When
the graph is in fixed scale, writing directly in the values of the end-scale markers sets the scale to fit
those values.
7.6
WiFi
Tab (
“W”
model only)
The
WiFi
tab has all the indicators showing the instrument’s present state of connection, as well as
controls to configure
WiFi™
and email settings.
7.6.1
Connection Status
7.6.1.1
Levels of Connection
When trying to connect, either at the preset interval, or for an email alarm, the instrument will do it in two
stages:
•
The instrument first tries to connect to a
WiFi™
router or access-point in its vicinity.
•
Once connected to the network through the router or access-point, the instrument will then try
to connect to a server (either the specified email server, or the server running the
Instrument_Listener
application, depending if that is an alarm or part of the regular reporting of
recorded levels. The server connection can be done to a specified IP address, or to a domain
name. Connecting using a domain name is preferable because IP addresses are often subject
to change.
The instrument has a total time of 1 minute to go through the two stages. If the final stage is not
established by the end of that minute, the instrument stops trying in order to preserve battery. It will then
retry at the next preset interval, or if a new email alarm is triggered.
Note:
In order to maximize data throughput and minimize power consumption, it is best to locate the
router or access point close to the instrument so WiFi™ communications are reliable.
Note:
If the Instrument_Listener application is not running on the server, the instrument will not be
able to download any data.
Note:
The panel shown in
will display the progression of the connection when the
instrument is connected through USB. It is designed to help debugging connection problems
The
Connection Status
field indicates graphically the different stages of connection. Each icon (8, 9, 10,
11, 12, 13 and 14 in
) indicates a different connection stage:
•
Indicator 8 blinking:
The instrument is actively trying to connect to a Router or
Access-Point
