4 deploying the sensors, Commissioning – Casella CEL Nomad portable weather station User Manual
Page 11

7.
Charge the battery for at least 24
hours before using it in the field,
then disconnect the charger.
8.
When sufficient power is available,
the logger will start logging data
immediately.
9.
When you do not want to start logging
at this time, press Key 1 to display the
Power control menu.
(The keys implement the options
shown immediately above them on the
menus. The menu structure is shown
in Figure 6.)
10.
Press Key 3 to display the Switch off ?
menu.
11.
Press Key 2 (Y = yes) to switch the power off.
The Sensus is switched off with the message Switching off confirming
the command.
12.
When data is to be stored
on a CompactFlash
TM
,
check that a card is
present in the slot in the
right hand panel of the
Sensus Data Logger.
If no card
1
is present,
insert one as shown in
Figure 3.
When a CompactFlash card
is used, the logger will
store data only on the
card
1
and not in its on-board memory. (Also see Section 4.8.)
2.4
Deploying the Sensors
The equipment is contained in three packages that can be carried by a single
person.
Large Bag (1050 x 300 mm footprint) with shoulder strap that contains
the sensor head, complete with sensors, inverted in a fitted foam
housing plus the folded tripod and extension post,
Small Bag (300 x 300 mm footprint) with handles that contains the
tipping bucket rain gauge,
Environmental Case (polypropylene) with handle that contains the data
logger, barometer and the external solar panel.
The Nomad can be deployed and logging data within five minutes. However, it is
strongly recommended that you run through the installation procedure in the
Commissioning
Connector
Narrow Slot
01095
Wide Slot
Figure 3: Installing a CompactFlash card
Charge
Socket
In-Line
Fuse Holder
02001
WARNING
ALWAYS REMOVE
THE FUSE WHEN
CONNECTING OR
DISCONNECTING
THE BATTERY.
1 AMP FUSE
Figure 2: Location of the Charge
socket and in-line fuse
Note 1:
A CompactFlash card which has already stored or download data, cannot function with
a measuring station that has a different configuration from the last used station.
Therefore, either clear the card before starting operations with a different station, or
select only a card that has previously been used with the same station.
Page 11 of 68
NOMAD Portable Weather Station
Users Handbook