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F
or outdoor installations
, use the optional protection shield against solar radiations
(
HD9217TF1
).
Data loggers supplied with clamping already mounted on the back of the housing are equipped
with protection devices against over-voltages connected to the clamping. For a correct opera-
tion of the protecting devices, the yellow/green wire with fast-on connector connected to the
clamping should be connected to ground.
The outdoor installation of the combined temperature and relative humidity probe requires
HD9007A-1 or HD9007A-2 protection against solar radiations.
9.3
C
ONNECTION TO THE WIRELESS NETWORK
The device can be connected and disconnected to/from the wireless network
by pressing for
5 seconds
the internal connection button.
Fig. 9.3.1: internal connection button
If the device is disconnected, by pressing for 5 seconds the connection button the buzzer emits
a beep and the green RF LED blinks for 1 second to indicate the start of the connection proce-
dure. If the device belongs to a wireless network and the base unit is reachable, after connection
the buzzer emits a second beep and the green RF LED blinks during data transmission. If the de-
vice doesn’t belong to a wireless network and the base unit is not reachable, the second beep of
the buzzer is not emitted and the red RF LED will blink.
If the device is connected, by pressing for 5 seconds the connection button the buzzer emits a
beep, the red RF LED blinks for 1 second and the device is disconnected.
In data loggers with LCD display, the connection status is signaled also by the connection icon
on the display (see figure 3.6 on page 9):
•
The icon is steady on if the data logger is connected;
•
The icon blinks if the data logger is trying to connect (the icon will be steady on after
connection or will go on blinking if the base unit cannot be reached or the data logger
doesn’t belong to a wireless network);
•
The icon is off if the data logger is not connected.
PING function:
In the devices connected to a wireless network it is possible to check if the base unit can be
reached by briefly pressing the connection button: if the green RF LED is blinking, it means
that the base unit is reachable, otherwise it will be the red RF LED RF to blink.
9.4
D
ATA LOGGER WITH
LCD
OPTION
Through HD35AP-S software, you can select the measurement to be displayed on the main line
of the display or set the automatic alternation of measured quantities. Information on the con-
nection status, logging (in progress/disabled), and battery charge level are shown. The secon-
dary line displays temperature (if measured by the model).
Connection
button