Delta OHM HD2013-DB User manual

HD2013-DB
Rain gauge data logger
HD2013-DB is a data logger that has been specifically developed to capture and store rainfall
trends. It wor s with a long life lithium battery that provides, together with the large memory,
remar able recording capacity without user intervention. For user convenience, the supplied
lithium battery, when exhausted, can be also replaced by three al aline batteries (not supplied
with instrument).
The bac lit display shows in real time the rain quantity during various time intervals and the
maximum rainfall intensity in mm/h during the last hour and the last 24 hours.
The instrument is perfectly watertight than s to the use of reed relays, instead of the common
push-buttons. The reed relays are operated through a magnet, attached to the end of an
aluminium handle tied to the case. When not in use, the magnet is placed bac into its holder.
The software HD32MTLogger supplied with the instrument allows setting of the parameters of
the instrument, the real time display of the values captured by the data logger, the download
to a PC and the process of the stored data. The connection to the PC is made via the M12 8-
pole RS232C serial connector placed at the bottom of the instrument.
HD2013-DB can be connected to the most popular types of rain gauges with normally closed
(NC) or normally open (NO) output contact.
The display auto power-off feature allows to prolong the battery life. A front LED lets you chec
the operating status of the instrument when the display is off. The LED changes color when the
rain gauge contact switches, thus allowing to verify that the rain gauge tipping buc et returns
correctly in the stable position after emptying.
Technical characteristics
Power supply Internal 3.6 V lithium-thionyl chloride (Li-SOCl2) not rechargeable
battery, size C, capacity 8400 mAh, Molex 5264 2-pole connector
3 x 1,5 V al aline batteries (not supplied with the instrument) can
be used to replace the lithium battery when exhausted
Recorded event NC or NO contact.
Resolution From 0.050 to 1.599 mm/sample
Storage capacity 32.255 samples
(equal to 6451 mm of rainfall with 0.2 mm/sample resolution)
Non-volatile memory and cyclic memory management
PC interface Isolated RS232C serial port – 115200 baud
Display 2-row bac lit LCD
Indications on display Rain quantity in mm from the counter reset
Rain quantity in mm in the last 10 minutes and in the last hour
Rain quantity in mm in the last 4, 24, 72 and 96 hours
Maximum rain intensity in mm/h in the last hour and in the last 24
hours
LED indicator Flashes red if the rain gauge contact is open
Flashes green if the rain gauge contact is closed
Battery life Approx. 5 years of continuous use with the supplied lithium battery
(in typical operating mode, in which the bac lit display is turned on
occasionally)
Approx. 18 months of continuous use with 3 al aline batteries with
2200 mAh capacity
Operating temperature -30 °C...+60 °C
Protection degree IP 67
1
ENGLISH
Rev. 1.0
06/08/2012

Installation and connections
The housing of the data logger has IP 67 protection degree and can be wall mounted or, in the
case of installations with the rain gauge off the ground, fixed to the rain gauge support by
means of the HD2003.77/40 clamping. Diameter of the support: 40 mm.
Fig.1 Installation with HD2003.77/40 clamping
Two connectors are placed at the bottom of the housing: one 4-pole M12 male connector for
the connection to the rain gauge and one 8-pole M12 male connector for the connection to the
PC. The arrangement of the two connectors is also clearly indicated on the front mas of the
data logger.
Fig. 2 Description and connections
2
LCD
LED
Reed contacts
Magnet
Rain gauge
(4-pole connector)
RS232
(8-pole connector)
Magnet holder

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 Blac
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 bac 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 eys 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 bac into its holder.
Operation
The data logger counts and stores the number of emptying of the rain gauge tipping buc et.
Each emptying of the buc et 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 wor s 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 blin s 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 bac lit; 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 wor ing 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

quantity of rain in mm in the last 10 minutes and in the last hour;
quantity of rain in mm in the last 4 and 24 hours;
quantity of rain in mm in the last 72 and 96 hours;
maximum rain intensity in mm/h in the last hour and in the last 24 hours;
quantity of rain in mm from the last counter reset (partial rainfall);
date/time and battery voltage;
user code and serial number of the data logger.
The maximum rain intensity is calculated by dividing the relevant time (1 hour or 24 hours)
into 10 minutes intervals, and by calculating the quantity of rain that fell in each interval. The
maximum value of the calculated quantities is then multiplied by 6 to obtain the intensity in
mm/h.
The values of the quantity and intensity of the rain are shown on the display with 0.1 mm
resolution. The internal resolution of the data logger is 0.001 mm and the thousandth values
are visible by downloading the data to the PC with the HD32MTLogger software.
The data logger indicates "over-range" if the maximum rain intensity exceeds 240 mm/h or
the rain quantity in 10 min, 1h, 4h, 24h, 72h, 96h exceeds 1000 mm.
The counter of partial rainfall is limited only by the memory capacity (32.255 samples). The
memory is managed cyclically: the new sample overwrite the oldest.
Reset of the partial rainfall counter: the reset of the partial rainfall value can be performed
by using the HD32MTLogger software or directly by using the data logger eyboard according
to the following procedure:
1. turn the display on, if turned off, by pressing any of the two buttons on the data logger;
2. wait until the display shows the message "Use magnet to enter MENU";
3. press the / button by using the magnet; "RESET INCR. COUNT" indication appears;
4. select "YES" by pressing ENTER button; the data logger automatically exits MENU.
To exit MENU without resetting the counter, when "RESET INCR. COUNT" indication appears
select "NO" by pressing the / button, then select ENTER button to exit.
Date/time, user code, resolution and language of the data logger can be set by using
the HD32MTLogger software (see the instructions of the software).
Connection to PC
The data logger is provided with an RS232 serial port with 8-pole M12 connector located at the
bottom of the instrument. For the connection to the PC use:
the HD2110RS cable for the connection to a RS232 port of the PC;
the CP25 cable for the connection to a USB port of the PC; to use the CP25 cable, the
related USB drivers must be installed in the PC.
With the HD32MTLogger software, for Windows® operating systems, it is possible to set the
parameters and the language of the instrument, view in real time the values captured by the
data logger, download to the PC and process the stored data.
When the data logger is connected with the HD32MTLogger software, the bac lit display is
always on. To prolong the battery life, it is recommended to maintain the connection only for
the time necessary.
4

Battery replacement
HD2013-DB uses an internal 3.6 V lithium-thionyl chloride (Li-SOCl2) not rechargeable
battery, size C, with Molex 5264 2-pole connector. The charge status of the battery is
constantly monitored and displayed.
When the battery voltage drops below a certain value, the instrument automatically turns off
the bac lit of the display, so as to minimize the battery consumption and allow the instrument
to continue to perform the measurement functions. When the bac lit is turned off, it is
recommended to replace the battery soon.
If the battery voltage drops further to a level that does not allow the correct operation of the
instrument, the message "CHANGE BATTERY NOW!" is displayed; in such a case, the battery
replacement is necessary.
The instrument is equipped with non-volatile memory: the data remain stored even if
the battery is discharged and disconnected.
To replace the battery, proceed as follows:
1. disconnect the instrument from the PC, if connected;
2. unscrew the four screws fixing the front cover;
3. remove the battery connector and ta e the battery out of its holder;
4. insert the new battery paying attention to the correct polarity (the connector is provided
with a protection device that prevents the reversal of polarity);
as an alternative to the lithium battery, if not available, three 1.5 V al aline batteries can
be used, to be inserted in the batteries holder shown in the figure. In such a case,
connect the batteries holder connector to the battery connector on the board of the
instrument;
5. close the cover with the fixing screws; when closing, verify that the sealing gas et is
properly positioned; the screws must be securely fastened.
Fig. 4 Inside view of the data logger
5
Battery
connector
Reset
push-button
Lithium
battery
Batteries holder
for al aline
batteries

Ordering codes
HD2013-DB: Rain gauge data logger. With bac lit LCD. Detects and stores up to 32.255
pulses caused by the buc et emptying. Resolution configurable from 0.050
to 1.599 mm/pulse. Isolated RS232 serial output. IP 67 protection degree.
Powered by a 3.6 V lithium battery. Supplied with: internal not
rechargeable lithium-thionyl chloride (Li-SOCl2) battery (BAT-2013DB),
clamping for the fixing to the Ø 40 mm support mast of the rain gauge
(HD2003.77/40), HD32MTLogger software, 1 m cable for the connection
to the rain gauge (CP2013-DB).
The HD2110RS (RS232) or CP25 (USB) cable for the connection to the PC
has to be ordered separately.
CP2013-DB: 4-pole cable. Length 1 m. 4-pole M12 connector on one side, open wires on
the other side.
HD2110RS: Serial connection cable with M12 connector on the instrument side and
9-pole SubD female connector for RS232C on the PC side.
CP25: Serial connection cable with USB connector on the PC side and 8-pole M12
female connector on the instrument side. The cable has a built-in
USB/RS232 converter and connects the instrument directly to the PC USB
port.
HD2003.77/40: Clamping for fixing the data logger to the Ø 40 mm support mast of the
rain gauge.
BAT-2013DB:3.6 V lithium-thionyl chloride (Li-SOCl2) not rechargeable battery, capacity
8400 mAh, size C, Molex 5264 2-pole connector.
FCM12.4: 4-pole M12 female spare connector, for connecting the data logger at
distances greater than 1 m from the rain gauge.
The quality level of our instruments is the results of the product continuous development. This can bring
about differences between the information written in this manual and the instrument that you have
purchased. We cannot entirely exclude errors in the manual, for which we apologize.
Data, figures and descriptions contained in this manual cannot be legally asserted. We reserve the right
to ma e changes and corrections without prior notice.
DELTA OHM srl
VIA G. MARCONI, 5
35030 CASELLE DI SELVAZZANO (PD) - ITALY
TEL. [phone] - FAX [phone]
e-mail [email protected]
Web Site www.deltaohm.com
6