4-pole M12
male connector
of the datalogger
(visible side)
CP2013-DB cable
Connector
Function
Color
1
Rain gauge contact
Brown
2
Rain gauge contact
White
3
Not connected
Blue
4
Not connected
Black
Fig. 3: Connection of the CP2013-DB cable to the rain gauge
Over-voltage protection
: the data loggers supplied with the mast clamping already mounted
on the back of the housing are provided with internal over-voltage protection devices,
connected to the clamping. For the correct operation of the protection devices, the mast on
which the clamping is fixed, must be connected to ground.
Keyboard
The two function keys that allow to control the instrument are formed by two reed contacts,
operable from outside by means of a magnet supplied with the instrument.
Two red areas are indicated on the front of the instrument, corresponding to the word "ENTER"
and to the symbols
and
: on these areas will be placed the magnet to operate the
instrument. Keeping the magnet on the red area for a few instants and then moving it away is
equivalent to press a button. For simplicity, in the description of the instrument that follows,
this operation will be called: "
press the ENTER button
", "
press the
/
button
".
After use, the magnet with its support should be placed back into its holder.
Operation
The data logger counts and stores the number of emptying of the rain gauge tipping bucket.
Each emptying of the bucket corresponds to a quantity of rain equal to the resolution of the
rain gauge. The resolution can be set from
0.050 to 1.599 mm of rain by using the
HD32MTLogger software
. The rain gauge contact can be both NC and NO type (it is not
necessary to set the contact type, the data logger automatically works with both types of
contact).
Status indicator
: the LED indicator of the data logger indicates the status of the contact of
the rain gauge. The LED blinks red if the contact is open, and green if the contact is closed.
Therefore, the LED color allows to highlight the emptying of the bucket and check
that the bucket returns in the stable position after emptying
.
Display
: the display is backlit; to minimize the battery consumption, the display is switched
off if no operation is peformed on the data logger for 2 minutes. However, the data logger is
still working even when the display is off, and its activity is signaled by the flashing status
indicator LED. In order to turn the display on, press any of the two buttons. When the display
is on, the following screens are displayed sequentially:
3
