Manual Datalogger
REV. 1.2
05/09/2011
HD32MT.1
PROGRAMMABLE
DATA LOGGER
ENGLISH
Our instruments’ quality level 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 make changes and corrections without prior notice.
TABLE OF CONTENTS
1
INTRODUCTION .................................................................................................... 4
1.1
GLOSSARY .......................................................................................................6
2
TECHNICAL CHARACTERISTICS ............................................................................ 7
3
DESCRIPTION OF TERMINAL BOARD .................................................................... 8
4
INSTALLATION ................................................................................................... 10
5
4.1
START-UP OF AN ALREADY CONFIGURED DATA LOGGER ................................................... 10
4.2
START-UP BY MODIFYING THE DATA LOGGER CONFIGURATION ........................................... 11
4.3
DATA LOGGER INSTALLATION WITH CREATION OF THE CONFIGURATION ................................ 12
ELECTRICAL CONNECTIONS................................................................................ 13
5.1
POWER SUPPLY INPUT ........................................................................................ 13
5.2
POWER SUPPLY OUTPUTS ..................................................................................... 15
5.3
ANALOG INPUTS ............................................................................................... 16
5.3.1
CONNECTION OF SENSORS AND TRANSMITTERS WITH OUTPUT VOLTAGE .................... 17
5.3.2
CONNECTING SENSORS AND TRANSMITTERS WITH CURRENT OUTPUT ....................... 20
5.3.3
CONNECTION OF 2-WIRE RESISTIVE SENSORS ................................................. 22
5.3.4
CONNECTION OF 3-WIRE POTENTIOMETRIC SENSORS ......................................... 23
5.3.5
CONNECTION OF 4-WIRE RESISTIVE SENSORS ................................................. 23
5.3.6
CONNECTION OF THERMOCOUPLES .............................................................. 24
5.4
DIGITAL INPUTS AND OUTPUTS .............................................................................. 25
5.5
INPUTS FOR PULSE COUNTING ............................................................................... 26
5.5.1
HIGH FREQUENCY PULSE COUNTING ............................................................. 26
5.5.2
COUNTING NUMBER OF OPENING/CLOSING OF VOLTAGE-FREE CONTACTS .................. 26
5.6
RS485 CONNECTION FOR THE ANEMOMETERS SERIES HD2003 AND HD52.3D…................... 28
5.7
ALARM OUTPUTS .............................................................................................. 29
5.8
GROUNDING ................................................................................................... 29
5.9
HOW TO READ THE WIRING DIAGRAM ....................................................................... 31
5.10 EXAMPLES OF METEOROLOGICAL STATIONS ................................................................ 32
6
CONNECTION TO THE PC .................................................................................... 36
6.1
DIRECT CONNECTION VIA CABLE ............................................................................ 36
6.2
CONNECTION VIA RADIO MODEM (ONLY FOR THE RADIO MODEM VERSION) ........................... 37
7
GSM CONNECTION .............................................................................................. 39
8
CHANGING THE CONFIGURATION....................................................................... 40
8.1
CONNECTING TO THE PC AND READING THE PROGRAM INSTALLED ...................................... 40
8.2
CHANGING THE INSTALLED PROGRAM ....................................................................... 43
8.2.1
CHANGING THE MEASUREMENT RECORDING INTERVAL ........................................ 43
8.2.2
CHANGING THE PARAMETERS OF A SENSOR .................................................... 45
8.2.3
ADDING A SENSOR ................................................................................ 47
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8.2.4
8.3
9
REMOVING A SENSOR ............................................................................. 50
INSTALLING THE CHANGED PROGRAM IN THE DATA LOGGER.............................................. 52
CREATION OF THE CONFIGURATION .................................................................. 53
9.1
CREATING THE PROGRAM FILE ............................................................................... 53
9.2
LIST OF SENSORS AND SETTING OF PARAMETERS ........................................................ 54
9.2.1
UNIPOLAR VOLTAGE AND BIPOLAR VOLTAGE CONFIGURATION .............................. 59
9.2.2
RESISTANCE DIVIDER CONFIGURATION ........................................................ 62
9.2.3
RESISTANCE DIVIDER 4-WIRE CONFIGURATION .............................................. 66
9.2.4
ADDER PULSES → DIGITAL/ANALOG PULSES CONFIGURATION ............................ 68
9.2.5
ADDER PULSES → SWITCH CLOSURE CONFIGURATION ..................................... 71
9.2.6
INPUT CURRENT 4-20 AND 0-20MA CONFIGURATION ....................................... 73
9.2.7
DIGITAL INPUT CONFIGURATION ................................................................ 76
9.2.8
U.S. ANEMOMETERS HD2003 AND U.S. ANEMOMETERS HD52.3D CONFIGURATIONS . 77
9.2.9
RAIN GAUGE CONFIGURATION ................................................................... 79
9.2.10 RADIOMETRY CONFIGURATION................................................................... 80
9.2.11 Pt100-Pt1000 THERMOMETERS CONFIGURATION ........................................... 83
9.2.12 THERMOCOUPLES CONFIGURATION .............................................................. 85
9.2.13 NTC THERMISTOR CONFIGURATION ............................................................ 87
9.2.14 ERROR MESSAGES WHILE SETTING THE PARAMETERS ......................................... 89
9.3
CREATING THE STORE TABLES ............................................................................... 89
9.3.1
ALARMS TABLE .................................................................................... 93
9.3.2
CAPACITY OF THE INTERNAL MEMORY ........................................................... 94
9.4
SAVING THE PROGRAM IN THE PC........................................................................... 96
9.5
INSTALLING THE PROGRAM IN THE DATA LOGGER ......................................................... 98
9.5.1
ERROR MESSAGES DURING CONNECTION ..................................................... 100
10 MEMORY CARD.................................................................................................. 101
11 LED SIGNALS .................................................................................................... 103
12 LITHIUM BATTERY REPLACEMENT .................................................................... 104
13 MOUNTING THE DATA LOGGER ......................................................................... 105
14 INSTRUMENT STORAGE .................................................................................... 106
15 SAFETY INSTRUCTIONS .................................................................................... 106
16 ORDER CODES .................................................................................................. 107
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1 INTRODUCTION
The HD32MT.1 is a data logger capable of capturing and logging the values measured by a
series of sensors connected to its inputs.
The data logger is completely programmable by the user and is therefore very versatile. The
supplied HD32MTLogger application software, supplied with the instrument, allows simple
and intuitive programming by using graphic interfaces, without the need of learning any
programming language, thus minimizing the time needed to make the system operational.
The values recorded by the instrument can be transferred to a PC by using the
HD32MTLogger software. The data logger can be configured to memorize the instant value,
the minimum value, the maximum value, the average value and the standard deviation of the
measurements. For measurements that require the counting of pulses, the total counted
pulses can be stored.
Different acquisition/recording intervals can be programmed per each input. Each recording
includes acquisition date and time
The data logger has a "flash" internal memory arranged in circular mode: when the memory is
full the new data overwrite the older ones. The number of storable measurements depends on
the number of sensors employed on the type of measurement and the simultaneous
acquisition by the sensors, or on the acquisition on different moments. For example, with 8
sensors capturing at the same instant you can store 100,000 records, each one composed of 8
instantaneous measurements.
Data can also be directly recorded to a removable SD-type memory card with a capacity of 2
GB. The use of a memory card allows extending the memory capacity of the instrument,
allowing not to loose the data when the memory is full.
We have two versions of the data logger, according to the possibility of communication with
the PC:
•
Basic version: the communication with the PC for data transfer or programming is
done via cable connection.
•
Version with Radio Modem option: in addition to the direct cable connection to your
PC, you can transfer the data and programming by VHF radio using optional external
radio modems.
Both versions can be equipped with an optional GSM module to be connected externally to the
instrument, through which you can send SMS alarm messages to cell phones and send the
recorded data by e-mail or to an FTP address.
The instrument can be connected to all common sensors used in industrial and environmental
to the instrument, with both analog output and digital output.
The typical sensors that can be connected to the instrument are:
•
sensors with analog voltage output, both unipolar and bipolar;
•
sensors with analog current output (0…20mA, 4…20mA);
•
temperature sensors thermocouple (type K, J, T, N, R, S, B, E);
•
Pt100/Pt1000 and NTC temperature sensors;
•
sensors with digital output TTL level pulse (ON/OFF);
•
sensors with open/close contact output (e.g. rain gauges, cup anemometers);
The data logger is also equipped with a RS485 port specifically designed for connection of the
anemometers Delta Ohm HD2003 and HD52.3D series.
There are potential-free contact alarm outputs and digital alarm outputs. The outputs are
activated if the values measured by sensors connected to data loggers exceed the
programmed threshold.
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The instrument is particularly suitable for use in weather stations, for the detection and remote
transmission of climatic variables. Delta Ohm manufactures a wide range of sensors for
measuring environmental variables that can be connected to the data logger, including sensors
for measuring temperature, humidity, barometric pressure, wind speed, solar radiation,
amount of rainfall, etc.
The data logger can be supplied with a program of measures and stores pre-installed according
to specifications of the customer, in order to be operational immediately after installation of
the system. The program is installed directly from Delta Ohm to meet the required
specifications when ordering.
The system can also be powered by a solar panel and battery of adequate capacity, allowing
for installation in remote sites without electrical power.
An internal lithium battery keeps the date and time of the instrument in the absence of
external power.
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1.1
GLOSSARY
Gain
Gain of a device, or the change in output signal compared
to the change of the input signal that has generated the
output change.
Ground loop
Unwanted current flow caused by the difference in potential
between two distinct points of land. It is the cause of noise
signal superimposed on the relevant measure.
GSM
Global System for Mobile Communication. Digital mobile
phone standard based on a capillary network of fixed
reception/transmission structures (cellular network) that
work as repeater stations for the signals of the mobile
devices.
Differential input
Input of a device that can detect the difference between
two signals. Requires a 2-wire connection (one wire per
signal), and a common reference point for the signals and
the device.
Single-line input (single ended)
Device input to detect the value of a signal with respect to a
common reference point to the signal and the device. It is
also referred to as "single-ended".
Current loop
Two-wire connection between a transmitter and a receiver
device in which the signal information is the current value
imposed by the transmitter on the line connecting.
Memory Card
Miniature, removable storage device to transfer data from
one digital device to another.
Offset
Fixed value that is added to or subtracted from the value of
a signal or a measure.
Radio Modem
Modem device for transmitting radio frequency (wireless).
RS485
Standard two-wire serial transmission that allows the long
distance connection of multiple devices in a multi point
network. Usually used in industrial environment.
Shunt
Resistor inserted in series to a line, which allows to convert
the current flowing along the line in a voltage signal.
Common voltage
Maximum voltage that can be applied to the input of a
device, compared to the reference of its supply voltage,
without causing saturation.
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2 TECHNICAL CHARACTERISTICS
Sizes
222x140x63 mm
Weight
About 1 kg
Case material
Coated aluminium
Operating conditions
-20 … 50°C, 0 … 85% RH no condensation
Storage temperature
-25 … 65°C
Power Supply
12 … 30 Vdc
Absorption
40mA @ 12 Vdc
Data acquisition interval from sensors
Programmable from 1 to 60 seconds
Data logging interval
Programmable from 2 seconds to 24 hours
Storage capacity
4 MB internal memory
SD memory card reader up to 2 GB
Number of samples that can be stored
The storage of a record consisting of N values
requires (4 x N) bytes of memory plus 8
bytes for the date and time.
Analog inputs
8 channels, each channel can be used as a
differential input or alternatively as 2 singleended inputs.
Measurement ranges:
±25mV, ±100mV, ±1000mV, ±2500mV
Resolution: 16 bit, Accuracy: 0.01% f.s.
Input impedance: 100Mohm
Digital input/output ports (I/O)
8 ports, each configurable as an input for
connecting a sensor or alarm output.
TTL logic levels (0⇒Vin<0.8V, 1⇒Vin>3V)
Max. input voltage: 5.5 V
Inputs for high frequency pulse counting
2 inputs
Frequency of pulses 50kHz max.
TTL logic levels (0⇒Vin<0.8V, 1⇒Vin>3V)
Minimum pulse duration 10 µs
Inputs for number of potential-free
contact opening/closing counting
2 insulated inputs
Switch frequency 50Hz max.
Minimum opening or closing time 10 ms
RS485 connection
1 RS485 port for connection of anemometers
HD2003 and HD52.3D… series
RS232 connection
2 RS232 ports, one for connection to PC or to
optional Radio Modem and one for
connection to optional GSM module.
Sub-D 9-pole male connectors
Alarm outputs
2 insulated voltage-free contact outputs
Contact: max. 1A @ 30Vdc resistive load
You can configure the single digital I/O ports
as alarm outputs
Auxiliary supply outputs
+5V regulated, max. 500 mA
+Vsw (switched): with same value of the
power input, it is active only during
acquisition of measurements
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3 DESCRIPTION OF TERMINAL BOARD
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1. Power input PWR 12…30Vdc.
2. Switched power supply output +Vsw. With the same value of the power input, but active
only during acquisition of measurements.
3. Regulated power supply output +5V.
4. Inputs for analogue signals. Divided into 8 channels corresponding to 8 differential inputs
(BIP channels) or 16 single-ended inputs (UNI channels). The differential input number is
shown in white to the left of the terminals.
Each channel is composed of four terminals:
Terminal E(*): Excitation voltage. Used only in certain measurement configurations.
Terminal H:
If the channel is used as a differential input, it corresponds to the "+"
connection of the input signal.
If the channel is used for single-ended inputs, it corresponds to the "+"
connection of the input signal of the single-ended channel with the number
indicated in yellow to the left of the terminal.
Terminal L:
If the channel is used as a differential input, it corresponds to the "—"
connection of the input signal.
If the channel is used for single-ended inputs, it corresponds to the "+"
connection of the input signal of the single-ended channel with the number
indicated in yellow to the left of the terminal.
Terminal G:
Analog ground. It has the same potential of the power supply ground.
If the channel is used for single-ended inputs, it corresponds to the "-"
connection of the input signal.
5. Terminal for ground protection.
6. Digital input/output channels. 8 channels are available, each one usable as input for
connection of sensors with ON/OFF digital output, or as alarm outputs.
7. Not used.
8. PULSE inputs for high frequency pulse counting Two inputs are available, marked with P1
and P2.
9. Insulated inputs SW IN for number of voltage-free contacts opening/closing count. Two
inputs are available, marked with 1 and 2.
10. Voltage-free contact alarm outputs. Two outputs are available, marked with 1 and 2.
11. RS485 serial port specifically dedicated to the connection of the anemometers series
HD2003 and HD52.3D…
The connection to the RS485 port of sensors other than indicated anemometers
may not work properly due to a different communication protocol.
12. Memory card reader.
13. RS232 serial port COM PC, for direct connection to the PC or for connection of the
optional Radio Modem (only for the Radio Modem version).
14. RS232 serial port COM AUX for connection of the optional GSM module.
(*)
The letter E is followed by the channel number (E1, E2, E3, etc.). For simplicity, in this
manual we are only using the letter E to indicate the excitation of a generic terminal
channel. The actual number of the terminal to be used will be indicated by the wiring
diagram depending on the required connection.
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4 INSTALLATION
The commissioning of the data logger differs according to the following cases:
1. The instrument is supplied pre-configured by Delta OHM according to customer
specifications;
2. The instrument is supplied pre-configured by Delta OHM, but you need to make
configuration changes;
3. The instrument is not configured, you must create and install the program of measures
and stores.
The following are the operations that must be performed directly by the customer in the three
cases to make the instrument operational.
4.1
START-UP OF AN ALREADY CONFIGURED DATA LOGGER
If the data logger is supplied with a program of measures and recordings already installed, it
comes with the wiring diagram for the program installed in the instrument.
In the wiring diagram are indicated which sensors should be used and to which numbers of
instrument terminals must be connected.
The instrument does not require any further configuration and it is not necessary to connect it
to the PC to make it work.
The steps to setup the system are:
•
Mechanical installation
o In case of supply of a complete system, with an already wired box, you only need
to proceed with the connection to the terminals of the external sensors and the
power supply.
o If the various elements and the housing box are supplied separately, you need to
install the various elements inside the box:
ƒ Mounting of the data logger.
ƒ Mounting of the possible optional devices: GSM module, Radio Modem,
antennas, alarm devices.
ƒ Mounting of the power devices: adequate backup battery, charge regulator,
power supply (if mains is available), etc.
Then proceed to connect the terminals of the various elements and of the
power supply.
Note: in order to mount the external sensors please refer to the sensors
documentation.
•
Electrical connection of sensors and optional devices
o For the electric connection of sensors and optional devices, please see the wiring
diagram supplied with the instrument. See paragraph 5.9 on page 31 on how to
read the diagram.
If in doubt, please refer to chapter 5 for more detailed information about the
features of the various inputs.
o For the connection of the Radio Modem, please refer to paragraph 6.2 on page 37.
o For the connection of the GSM module, please refer to paragraph 7 on page 39.
•
Electrical connection of power: please refer to paragraph 5.1.
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4.2
START-UP BY MODIFYING THE DATA LOGGER CONFIGURATION
If the data logger is supplied with a program of measures and recordings already installed, the
instrument comes with the wiring diagram for the program installed in the instrument. In the
wiring diagram are indicated which sensors should be used and to which instrument terminals
must be connected.
If you want to make changes to the program installed, for example to add another sensor, or
to replace one of the sensors with a sensor of another type, you must connect the data logger
to the PC to change its configuration. You can change the program of measures and
recordings even if the instrument is already installed and connected electrically, but
it is advisable to reprogram the data logger before connecting the sensors, because
the programming software automatically assigns the terminals to which sensors
must be connected, and does not allow the user to arbitrary assign sensors to certain
inputs.
The system setup is performed through the following steps:
•
Connecting the instrument to a PC for editing and storing the program of measures
installed. The modification is performed with the help of application software
HD32MTLogger. When you finish editing, print the new wiring diagram.
See chapter 6 on page. 36 for how to connect to the PC and the chapter 8 on page 40
for how to change the program installed, for printing the wiring diagram and examples
of practical changes.
Modifying the program requires an understanding of how to connect the sensors to the
terminal of the instrument, it is suggested, therefore, to consult chapter 5 "Electrical
connections" to know which sensors and inputs may be used.
•
Mechanical installation
o In the case of delivery of a complete system, with an already wired box, you just
proceed with the terminal connection of external sensors and power supply only.
o If the various elements and the housing box are supplied separately, you need to
install the various elements inside the box:
ƒ Securing of the data logger.
ƒ Fixing any optional equipment: GSM, radio modems, antennas, alarm.
ƒ Fixing the power devices: battery of adequate capacity, charge controller,
power supply (if the mains is available), etc.
Then proceed with the terminal connection of the various elements and of the power
supply.
Note: For mounting sensors refer to the documentation of external sensors.
•
Electrical connection of sensors and optional devices
o For the electrical connection of the sensors follow the new wiring diagram printed
by the software HD32MTLogger. Please see paragraph 5.9 on page 31 for how to
read the diagram.
If in doubt please refer to Chapter 5 for more detailed information about features of
the various inputs.
o To connect the radio modems, see paragraph 6.2 on page 37.
o To connect the GSM module, please see paragraph 7 on page 39.
•
Electrical connection of the power supply: please see paragraph 5.1.
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4.3
DATA LOGGER INSTALLATION WITH CREATION OF THE CONFIGURATION
If the logger is supplied without a program of measures and loggings installed, you must
prepare a program and install it by connecting the logger to the PC, all with the help of
application software HD32MTLogger.
It is advisable to program the data logger prior to electrically connect the sensors,
because the programming software automatically assigns the terminals to which
sensors must be connected, and does not allow an arbitrary assignment of sensors to
certain inputs.
The steps for the preparation of the system are:
•
Creation of the program of measures and stores for the data logger, using the
software HD32MTLogger. During this stage it is not necessary that the logger is
physically connected to the PC. At the end of the phase of creation, print the wiring
diagram of the sensors.
See chapter 9 on page 53 for how to create the program, printing of the wiring diagram
and practical examples.
The preparation of the program requires an understanding of how to connect the
sensors to the terminal of the instrument, therefore it is suggested to consult the
chapter 5 on page 13 for information about the sensors and inputs that can be used.
•
Connecting the Instrument to the PC to install the program of measures and
stores, always using the software HD32MTLogger. See chapter 6 on page 36 for how to
connect to PC and paragraph 9.5 on page 98 for the installation of the program in the
data logger.
•
Mechanical installation
o In case of supply of a complete system, with an already wired box, you just
proceed with terminal connection of the external sensors and of the power supply.
o If the various elements and the housing are delivered separately, you need to
install the various elements inside the box:
ƒ Securing the data logger.
ƒ Securing any optional equipment: GSM, Radio Modem, antennas, alarm
devices.
ƒ Securing power devices: battery of adequate capacity, charge controller, power
supply (if the mains is available), etc.
Then proceed with the terminal connection of the various elements and of the
power supply.
Note: For fixing of external sensors refer to the documentation of the sensors.
•
Electrical connection of sensors and optional equipments
o For the electrical connection of the sensors follow the wiring diagram generated by
the software HD32MTLogger. Please see paragraph 5.9 on page 31 for how to read
the diagram.
If in doubt please refer to Chapter 5 for more detailed information about features of
the various inputs.
o To connect the Radio Modem, please see paragraph 6.2 on page 37.
o To cnnect the GSM module, please see paragraph 7 on page 39.
•
Electrical connection of the power supply: please see paragraph 5.1.
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5 ELECTRICAL CONNECTIONS
The following describes the types of inputs and outputs available in the terminal board of the
instrument. For each type of input or output, the details of the connection of the various
sensors are shown.
The connections to the terminals can be divided into::
•
Power supply input (paragraph 5.1 on page 13);
•
Power supply output (paragraph 5.2 on page 15);
•
Differential or single-ended analog inputs (paragraph 5.3 on page 16);
•
ON/OFF digital inputs/outputs (paragraph 5.4 on page 25);
•
Inputs for counting pulses or opening/closing of contacts (paragraph 5.5 on page 26);
•
Dedicated RS485 interface for connection of the anemometers Delta OHM HD2003 and
HD52.3D… series (paragraph 5.6 on page 28);
•
Alarm outputs (paragraph 5.7 on page 29);
The chapter includes a paragraph that explains how to read the wiring diagram generated by
the software program (paragraph 5.9 on page 31). The diagram should be provided by the
data logger programmer or by supplier of the system in case of program pre-installed.
They are also given examples that show the connections of a complete system, in the case of a
meteorological station (at paragraph 5.10 on page 32).
It is not reported in this chapter the RS232 connection, illustrated in chapter 6 on page 36.
Warning: connecting the power supply of the various sensors used, make sure not to exceed
the maximum power supply voltage specified in the data sheets of sensors.
5.1
POWER SUPPLY INPUT
The instrument requires a supply voltage of 12…30 VDC.
The power supply input is located at point 1 of the terminal board figure on page 8.
Power supply Positive (+)
Power supply Negative (
)
It is advisable to first connect the positive to the data logger and then the negative. By
connecting the negative first is more likely to cause accidental short circuits if the free positive
wire comes in contact with the many ground points on the panel.
If you use a power supply connected to the mains, in the choice of the power supply you
should consider not only the internal consumption of the data logger, but also the consumption
of the sensors connected to the excitation terminals of the analog inputs (terminals E) and
consumption of the devices directly connected to the power supply.
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If the system is installed in places where there is no mains voltage to connect a power supply,
the instrument can be powered by a rechargeable standard 12V or 24V battery.
If the supply voltage drops below 11.7V, the logger goes into low power mode, interrupting
the acquisition of the sensors. Normal operation will restart only when the supply voltage will
rise above 12.5V.
In the case of battery power, it is usually also used a solar panel that keeps the battery
charge. A typical power connection is as follows:
Rechargeable
Battery
Solar
Panel
Charge
Regulator
The charge regulator is essential to prevent the solar panel overcharges the battery and
damages it.
The battery must have sufficient capacity to maintain power to the data logger in the periods
when the solar panel can not act as a charge due to lack of sunlight. The required capacity
depends on the number and type of devices connected to data logger or directly to the battery.
It is recommended to provide sufficient capacity to allow the regular operation of all devices
for at least a week without the solar panel generating energy.
Example
Consider a battery-powered installation in which three Delta OHM sensors are connected: an
HD2003 ultrasonic anemometer, a rain detector HD2013.2 and a photometric probe
LPPHOT03BLAC.
You must first consult the data sheets of the various sensors to verify the consumption:
ƒ
110 mA for the anemometer HD2003
ƒ
130 mA for the rain gauge HD2013.2
ƒ
25 mA max. for the LPPHOT03BLAC photometric probe
It is assumed that the sensors are always powered.
Suppose that the system has also a Radio Modem whose consumption is 350 mA in
transmission and 5 mA in stand-by mode. The average consumption of the device depends on
how frequently the data transmission is requested by the remote PC. Assuming that the
modem transmit for 0.5 hours a day, the average consumption during a day is:
0,5 h × 350 mA + (24 h - 0,5 h) × 5 mA
= 12,2 mA
24 h
In fact, the influence of the modem on the battery life is different depending on whether the
transfer occurs when the solar panel is active or when the panel is not able to efficiently
charge the battery (eg. particularly in cloudy days or in the evening). Assuming that the
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battery should last at least a day without being charged, for simplicity we can consider the
average daily consumption calculated above.
Finally, we must add the consumption of the logger itself: 40 mA.
The average total consumption of the system is: 110+130+25+12.2+40 = 317.2mA = 0,317A
The minimum capacity of the battery is obtained by multiplying the average consumption
calculated by the number of desired hours of battery life, eg. 24 h:
0.317A x 24 h = 7.6 Ah approx.
You should not get to fully discharge the battery, and the supplied voltage must always remain
above the minimum operating value. To obtain a sufficient safety margin, be sure to use a
higher capacity battery than the minimum calculated (eg. A 10Ah battery in the case referred
to a day).
5.2
POWER SUPPLY OUTPUTS
The data logger provides two auxiliary outputs (AUX) through which you can power external
sensors and devices. The two outputs are located under the power supply input terminals
(points 2 and 3 of the terminal board figure on page 8).
Power supply Negative ( )
+Vsw auxiliary output Positive
+5V auxiliary output Positive
Power supply Negative ( )
Output +Vsw is activated only when the logger has to acquire the measurements. During the
acquisition phase, the output assumes a value equal to the power supply input. Devices
connected to this output are not fed during periods of non-acquisition, thus allowing a lower
average consumption of the system and a longer battery duration. The output is defined as
switched type to indicate that is alternately turned on and off.
The use of the +Vsw output to supply a sensor must be carefully avaluated in terms of
response time of the sensor. If the programmed acquisition interval of the data logger is less
than the response time of a sensor, it is necessary to keep the sensor always powered by
connecting it to the main power supply.
The +5V output is always active and is used for devices that require 5V regulated. Output
current is 500 mA max.
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5.3
ANALOG INPUTS
The inputs for analog signal are shown at point 4 of the terminal board figure on page 8.
They can be considered as divided into 8 channels. Each channel can be used to measure a
differential mode signal or to measure two signals with a common ground. The signals referred
to the common ground are also known as “single-ended”.
You can select four measurement ranges: • ±25mV
• ±100mV
• ±1000mV
• ±2500mV
To different inputs can be associated different ranges. The choice of the measurement range is
made while programming the data logger and depends on the type of sensors that are
connected.
The analog channels are provided with a voltage output (terminal E(*)) used as an excitation
voltage for passive sensors. The use of the terminal and the value of the output voltage
depends on the type of sensor connected to the input (see the wiring diagrams of the various
types of sensors illustrated in the following paragraphs). The voltage at terminal E(*) is present
only during the acquisition phase of the measure, to minimize the consumption of the system.
The analog ground is available to terminal G. The analog ground has the same potential of the
power supply ground.
At the ends of the two rows of terminals of the analog inputs, there are two terminals
connected to the power supply ground ( ), useful to connect the shield of the sensors cables.
The input terminals H and L of a channel take on a different meaning on whether the channel
is programmed to operate in differential or single ended mode.
(*)
The letter E is followed by the channel number (E1, E2, E3, etc.). For simplicity, in this
manual we are only using the letter E to indicate the excitation terminal of a generic terminal
channel. The actual number of terminals to be used will be indicated by the wiring diagram
depending on the required connection.
Differential connection:
The instrument measures the difference between the voltage at terminal H (input +) and the
voltage at terminal L (input —).
Number of differential
input
Analog Ground (G)
Input — of signal (L)
Input + of signal (H)
Excitation Voltage (E1)
Power supply Ground (
Number of differential
input
)
The number of the differential input is indicated by the white number that appears to the left
of the terminals H and L (channels BIP from 1 to 8).
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16
-
Single-ended connection:
The instrument measures the voltage between the terminal H and the analog ground G, and
the voltage between the terminal L and the analog ground G. You can then measure two
signals both relating to the common ground. The positive of one signal is connected to
terminal H, the positive of the second signal is connected to terminal L.
Number of singleended input
Analog Ground (G)
Input + of signal 2 (L)
Input + of signal 1 (H)
Excitation Voltage (E1)
Power supply Ground (
Number of single-ended input
)
The numbers of the two single-ended inputs are indicated by the yellow numbers that appear
to the left of the terminals H and L (channels UNI from 1 to 16).
5.3.1 CONNECTION OF SENSORS AND TRANSMITTERS WITH OUTPUT VOLTAGE
The following figure shows the connection of a generic sensor or transmitter with output
voltage. The device is connected according to the differential scheme. The shield of the
connection cable, if present, can be connected only on the data logger side to any terminal
connected to the power supply ground ( ).
Power supply
Note: the number of the input to which a sensor should be connected depends on the program
installed in the data logger; for connecting the sensors follow the wiring diagram generated by
the programming software, or the diagram supplied if the program is preinstalled.
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17
-
If the transmitter has only one reference terminal (power supply ground coincides with the
analog output signal reference), the connection scheme becomes the single-ended type as
follows:
Power supply
The illustration below shows, as an example, the connection of the Delta OHM HD9009TRR
temperature and relative humidity double transmitter:
Power supply
The connection scheme shown in the figures above can be used if the output device does not
exceed the acceptable measurement range of the data logger. The data logger can measure
signals up to 2500mV (2.5 V).
If a transmitter provides an output signal greater than 2.5 V, it is necessary to reduce the
signal by inserting a resistive divider at the input of the logger, as shown in the diagram
below:
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18
-
Power supply
The values of R1 and R2 should satisfy the following:
Vtransmitte r full scale ×
R1
R1 + R2
≤
Vmax datalogger
The sum of the values of R1 and R2 should be greater than the minimum value of load
resistance required by the transmitter. To reduce the consumption of the system, it is still
convenient to choose resistance values that are large enough. The values of the resistors
should be provided by the data logger programmer, as they depend on the set measurement
range.
Example
Consider a sensor with a 0…10V output and with a minimum load resistance of 10 kohm. You
want to connect the transmitter to an input of the data logger with a measurement range of
±2500mV (±2.5V).
Therefore it should be:
10V ×
R1
R1
≤ 2,5V ⇒
≤ 0,25
R1 + R2
R1 + R2
Assuming you choose R1 + R2 = 100 kohm, the result is: R1 = 25 kohm and R2 = 75 kohm.
CONNECTION OF PROBES FOR MEASURING SOLAR IRRADIANCE WITH mV OUTPUT
An analog input can be configured specifically for the connection, both in single-ended and
differential mode, of solar irradiance probes with mV output.
The probes with mV output do not require power.
If the input is programmed for single-ended connection, the connection of the probe is realized
as follows:
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19
-
If the input is programmed for differential connection, the probe connection becomes:
If using the differential connection, during the measurement the terminal L is internally
shorted to analog ground, to ensure that the voltage inputs is within the range measured by
the data logger (common mode voltage). It is therefore advisable to use probes with a
sensing element electrically isolated, to avoid reading errors due to potential
differences between the ground connection point of the probe and the analog ground
of the logger (grounded). If using sensors with sensing element not isolated, to
avoid reading errors it is important that the probe and data logger are grounded in
the same point. If there are multiple probes connected, the terminals L of the various probes
are short-circuited one at a time.
If using probes with sensing element non-isolated and occur malfunction due to the ground
connection, interpose between the probe and the logger a converter / transmitter with isolated
input and output. You can use the Delta OHM transmitters HD978TR3, HD978TR4, HD978TR5
and HD978TR6.
5.3.2 CONNECTING SENSORS AND TRANSMITTERS WITH CURRENT OUTPUT
To measure current signals you must first convert them into voltage through a shunt resistor.
The shunt must be a precision resistor, because the tolerance and temperature drift of the
resistance value affects the accuracy of the measure.
The following figure shows the connection of a transmitter with generic 0...20mA or 4...20mA
2-wire current output ("current loop"). The data logger measures the voltage drop across the
shunt resistor in differential mode.
Power supply
-
20
-
If the input of the logger is configured to measure a signal from a transmitter with current
output 0 ... 20 or 4 ... 20mA, connect the shunt between terminals H and L, and use a 100
ohms shunt resistor.
If you want to use shunt resistors of different values from 100 ohms, you must program the
input for the measurement of generic voltage signals, indicating the correspondence between
the voltage drop on the shunt and the value of the measured quantity (see the capter on the
programming for setting mode). The shunt resistor value must be less than the maximum load
resistance of the transmitter, and must be such that the voltage drop across it does not exceed
the measurement range of the data logger input.
Note: the number of the input to which a sensor should be connected depends on the program
installed in the data logger; for connecting the sensors follow the wring dagram generated by
the programming software, or the diagram supplied if the program is preinstalled.
When using sensors with separate connection for power supply and output signal, the
connection scheme for a transmitter with active output, becomes:
Power supply
If the transmitter has only one reference terminal (ground of power supply coincides with the
reference of the analog output signal), the connection scheme changes into the following:
Power supply
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21
-
5.3.3 CONNECTION OF 2-WIRE RESISTIVE SENSORS
You can connect to the data logger resistive sensors, typically thermistor temperature probes
or photoresistor, placing them in a resistive divider and measuring the voltage drop across the
sensor. The wiring diagram of a probe with a resistive sensing element is as follows:
Resistive Sensor
Reference Resistor
The data logger applies a voltage of 2500 mV to terminal E(*), and measures the voltage drop
across the sensor. The voltage measurement is the single-ended type (the voltage is related to
the analog ground).
(*)
The letter E is followed by channel number (E1, E2, E3, etc..). For simplicity, in this manual
we are only using the letter E to indicate the excitation terminal of a generic channel. The
actual number of terminals to be used will be indicated by the wiring diagram depending on
the required connection.
Any cable shield should be connected to the terminal
the logger).
(only connect the shield on the side of
The programmable inputs for this type of measurement are only single-ended inputs
UNI 1, UNI 2, UNI 3 and UNI 4.
The choice of the reference resistor Rf depends on the type of sensor connected and the type
of programming of the input.
If the input is programmed specifically for the measurement of NTC thermistors, the resistor
Rf must be equal to the value of the sensor at 25°C. The data logger calculates the
temperature according to the value of the coefficient BETA (β) entered during programming.
If the input is programmed to measure a general resistive divider, the data logger calculates
the value of the physical quantity measured by the sensor according to the parameters written
in the program, according to a linear relationship with the sensor value Rs. In this case you
can choose any value for Rf, providing to respect the programming parameters. In practice it is
recommended that Rf is neither too small nor too large compared to the values assumed by
the sensor, otherwise the voltage change across the sensor is too small and the resolution is
poor. The Rf values should be between the minimum (Rs min) and maximum (max Rs) values
assumed by the sensor in the measuring range of interest.
As a rule of thumb, for the thermistors can be connected a Rf value close to the resistance of
the sensor at the average temperature of the range of interest.
Note: If the data logger is already programmed, connect the Rf values provided by the
programmer.
Example
Consider a NTC thermistor probe used to measure the temperature in the range 20 ... +50°C.
Suppose that the probe takes the following values:
•
Rs at -20°C = 79440 ohm
•
Rs at 15°C = 15150 ohm (medium point of the measurement range)
•
Rs at 50°C = 3893 ohm
With good approximation, for Rf you can use the standard value closer to the value of Rs at
15°C.
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-
5.3.4 CONNECTION OF 3-WIRE POTENTIOMETRIC SENSORS
The potentiometric output sensors are potentiometers where the cursor is mechanically
connected to a mobile element. They are generally used in the detection of the position and
motion of an object. Typical devices with potentiometric output are the vane sensors for wind
direction (gonioanemometers).
The connection of this type of sensor is realized as follows:
Cursor
Potentiometer A side
Potentiometric
Sensor
Potentiometer B side
The ends of the potentiometer are connected to terminals E(*) and G, while the cursor is
connected to a single-ended input (the number depends on the program). The data logger
applies the voltage of 2500 mV across the potentiometer, and measures the voltage on the
slider with respect to the analog ground.
(*)
The letter E is followed by the channel number (E1, E2, E3, etc.). For simplicity, in this
manual we are only using the letter E to indicate the excitation terminal of a generic channel.
The actual number of terminals to be used will be indicated by the wiring diagram depending
on the required connection.
With the connection shown in the figure, the measured voltage increases when the cursor
moves to the end B of the potentiometer. If you want to reverse the behaviour, just exchange
the connections of the two extremes of the potentiometer.
The programmable inputs for this type of measurement are only single-ended inputs
UNI 1, UNI 2, UNI 3 and UNI 4.
5.3.5 CONNECTION OF 4-WIRE RESISTIVE SENSORS
The resistive sensors having low values of resistance, such as Pt100 temperature sensors, are
also available in 4-wire version to allow connection to circuits that compensate for the
resistance of the wires to get a more accurate measure.
The figure below shows the connection of a 4-wire resistive sensor:
Sensor’s wires side A
Sensor’s wires side B
To G and L terminals are connected the two wires coming from the same side of the sensor, to
terminals H and E(*) are connected the two wires from the other side. The measurement of
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23
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voltage drop on the sensor is in differential mode (the channel number depends on the
program).
Any cable shield should be connected to the terminal
the logger).
(only connect the shield on the side of
In this type of measurement, to terminal E(*) there is not a fixed voltage, but the measuring
circuit is automatically adjusted for the correct compensation of the connecting cables. For
details of the measure see the section on programming.
(*)
The letter E is followed by the channel number (E1, E2, E3, etc.). For simplicity, in this
manual are only using the letter E to indicate the excitation terminal of a generic channel. The
actual number of terminals to be used will be indicated by the wiring diagram depending on
the required connection.
If the input is programmed specifically for the measurement of Pt100 or Pt1000 sensors with
coefficient α=0.00385, the data logger provides directly the measured temperature.
If the input is programmed to measure a general resistive sensor, the data logger calculates
the value of the physical quantity measured by the sensor according to a linear relationship
with Rs, depending on the parameters entered in programming.
5.3.6 CONNECTION OF THERMOCOUPLES
The following figure shows the connection of a thermocouple probe:
Thermocouple
The wire correspondent to the positive of the thermocouple is connected to terminal H, the
negative wire connects to terminal L (the channel number depends on the program).
The instrument automatically compensates for cold junction temperature, using an internal
temperature sensor.
The input can be programmed to read thermocouple types K, J, T, N, R, S, B, E.
During the measurement, the terminal L is internally shorted to analog ground, to ensure that
the voltage at the inputs is within the range measured by the instrument (common mode
voltage). It is therefore advisable to use electrically insulated thermocouples, to avoid
reading errors due to potential differences between the measurement point and the
instrument analog ground (grounded). If the thermocouple is not isolated, to avoid
reading errors it is important that the measuring point and the analog ground of the
instrument have the same potential. If there are multiple thermocouples connected, the
terminals L of the various thermocouples are short-circuited one at a time.
If you use non-insulated thermocouples and malfunctions occur due to the ground connection,
place a converter/transmitter with isolated input and output between each probe and the data
logger. In that case, input of data logger must be programmed as a current or voltage input
depending on the output of the converter/transmitter, and not as a thermocouple input. You
can use the Delta OHM transmitters HD978TR series. The following illustration exemplifies the
use of the converter/transmitter HD978TR1 with output 4...20 mA.
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24
-
Power supply
Thermocouple
5.4
DIGITAL INPUTS AND OUTPUTS
The instrument is equipped with 8 digital input and output ports, located at point
terminal board figure on page 8.
6
of the
Each port can be configured to be used as input to read the state in which the output of a
digital device is in the moment of capture, or as output, to signal the occurrence of alarm
conditions when the measured values exceed the thresholds programmed into the data logger.
The digital ports operate at TTL levels. Voltages values below 0.8V are recognized as a logic 0.
Voltages above 3V are recognized as a logic 1. Digital signals are referred to the power supply
ground .
Do not apply to the inputs voltage above 5.5V to not damage them.
The inputs are not suitable for counting of pulse, for which the Pulse inputs are provided.
The following figure shows, as an example, the connection to the port 1 (configured as an
input) of a sensor with a digital output, and the connection to the port 2 (configured as an
alarm output) of a device with digital input to process the alarm signal.
Power supply
Device with
digital input
Device with digital output
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25
-
5.5
INPUTS FOR PULSE COUNTING
For the detection of pulse signals there are two types of inputs:
•
Inputs for counting high frequency pulses
•
Inputs for counting the number of opening/closing of voltage-free contacts.
5.5.1 HIGH FREQUENCY PULSE COUNTING
To count digital pulses up to 50KHz are used PULSE inputs, located at point 8 of the terminal
board figure on page 8.
There are two inputs: P1 and P2. The signals are referred to the power supply ground
.
Typical sensors that can be connected to this type of input are cup anemometers with
frequency digital output.
The connection is realized according to the following scheme:
Power supply
Device with digital
pulse output
The inputs work at TTL levels. Voltage values lower than 0.8V are recognized as logical values
0. Voltage values higher than 3V are recognized as logical values 1.
Do not apply to the inputs voltage above 5.5V to prevent damage the inputs
themselves.
To be detectable, the pulses must have a minimum duration of 10 µs.
5.5.2 COUNTING NUMBER OF OPENING/CLOSING OF VOLTAGE-FREE CONTACTS
To count the number of openings and closings of a voltage-free contact, for example the
contact of a relay, there are two SW IN inputs, located at point 9 of the terminal board
figure on page 8.
The inputs are insulated and identify the switching of a contact to the maximum frequency of
50Hz. In order for the contact switching to be detected, the contact must be closed or open for
at least 10 ms.
Typical sensors that can be connected to this type of input are the cup anemometers with
contact output and the tipping bucket rain gauges.
The following shows the connection of a device with contact output:
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26
-
Power supply
Device with
contact output
The following example describes the use of the Delta OHM sensor HD2013 connected to the
input 1 and of a cup anemometer connected to input 2. It is assumed that the two sensors are
completely mechanical and does not need power.
HD2013 Rain Gauge
Anemometer
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27
-
5.6
RS485 CONNECTION FOR THE ANEMOMETERS SERIES HD2003 AND HD52.3D…
The RS485 communications port (COM 485) of the logger is set specifically to work with
ultrasonic anemometers Delta Ohm HD2003 and HD52.3D... series.
Sensors with RS485 output different from the models mentioned above may not
work correctly when connected to the RS485 port, due to a different communication
protocol.
The COM 485 port is located at point 11 of the terminal board figure on page. 8. Only one
anemometer can be connected to the port, it is not expected the possibility to connect multiple
devices in a network. The connection of the anemometer is as follows:
Power supply
PWR+
PWR-
DATA-
DATA+
HD52.3DP147
Shield
HD2003
HD2003.1
The DATA+ terminal of the anemometer is connected to the +D input of the data logger.
The DATA- terminal of the anemometer is connected to the -D input of the data logger.
The cable shielding is connected to the terminal indicated by the symbol
the insulated ground of the RS485 circuit.
, corresponding to
If you use an anemometer with heating option, it is suggested to connect the anemometer
power supply to the main power supply of the system, so as to keep always on the heating
function.
Note: if the cable is very long, you should put on the RS485 data lines DATA+ and DATA- a
surge protection device.
For the proper functioning of the system, the anemometer must be pre-configured with the
following settings:
1. The order in which the anemometer sends the measured values to the output must
match the one programmed into the data logger.
2. The unit of measurement of air velocity set in the anemometer must match the one
programmed in the data logger.
3. Averaging period of the measures = 1 second.
4. Communication mode RS485.
5. Address = 1
6. Baud Rate = 115200
In case of supply of a complete system with anemometer and data logger with program preinstalled, the anemometer is already configured as required by the program and you do not
need to perform any preset. Otherwise, please refer to the chapter of the manual on
programming of the logger and anemometer manual for how to set parameters.
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-
5.7
ALARM OUTPUTS
The data logger has alarm outputs that are activated when the acquired values exceed the
programmed thresholds.
You can configure one or more ports of I/O to work as alarm outputs (see section 5.4 on page
25 for the connection of such ports), or you can use the two outputs with potential-free
contact indicated at point 10 of the terminal board figure on page. 8.
If a I/O port is configured as alarm output, the output changes to logic level 1 when the alarm
condition occurs. The output returns to logic 0 if the measure falls within the programmed
thresholds.
If you use an output with potential-free contact, contact is normally open and closes when the
alarm condition occurs. The contact remains closed until the alarm condition persists.
Contact 2
Contact 1
While connecting the outputs to external devices, make sure not to exceed the
specifications of the electrical contact (1A – 30Vdc resistive load).
5.8
GROUNDING
The instrument is provided with a terminal for connection to protective earth. The terminal is
indicated by point 5 of the figure of the terminal on page 8.
To connect the cable, unscrew the knob of the clamp, insert the lug of the cable and then
replace the knob ensuring secure clamping of the cable.
Ground cables from sensors and other devices
Box
Handle
Ground cable
Lug
Metal structure
inside the box
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29
-
For the ground connection use a cable size of at least 12 AWG (=3.31 mm2).
The ground terminal is at the same potential of the power supply ground and of the analog
ground reference.
It is recommended that in the system there is only one connection point to the ground, to
avoid currents generated by several points at different potentials (ground loop) that may cause
measurement errors. If the sensors connected to instrument shall provide its own ground
connection, connect to a common metal bar inside the system container and then connect the
bar to the ground. If the container is metal, the bar must also be connected to the container.
THE PROBLEM OF DIFFERENT GROUND POTENTIALS (GROUND LOOP)
Different ground points could not be exactly at the same potential. If the housing of a sensor is
connected to the ground and the sensing element is not electrically insulated from the housing,
it can generate unwanted currents flowing in the cables of the signal when the sensor is
connected to a receiver (ex. a data logger) also grounded in a different place.
Resistance between 2 ground points
Internal connection to
data logger toward ground
Sensitive element
Casing of sensor
Signal cable resistance
In this situation there is a measurement error due to the fact that the logger detects the
output signal of the sensor summed with the difference of the two ground potentials.
The problem is particularly relevant in the case of sensors that have a very small output signal,
for example, thermocouple probes (if the hot junction is connected to the outer sheath) or
solar probes with output in mV (if the negative signal is connected to the metallic housing).
In the case of inputs configured for the measurement of thermocouples and solar radiation
sensors with mV output, the problem occurs even if the measure is in differential mode (the
negative signal is connected to L instead of G) because the data logger internally connects the
input L to ground during the measurement.
In general, you can avoid the drawbacks due to the "ground loop" effect by observing the
following rules:
•
Connect all the sensors and data logger to a single ground point.
•
Connect the cable shield only by the data logger and leave it free on the probe side.
•
Placed between the sensors and data logger converters / transmitters with isolation
between input and output
•
Do, when possible, truly differential measurements, in which the negative is high
impedance and therefore has no physical connection to analog ground.
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5.9
HOW TO READ THE WIRING DIAGRAM
The connection of the sensors must be made in accordance with the program installed in the
data logger. The HD32MTLogger programming software is designed to generate a list of
connections required by the program. It is the responsibility of the data logger programmer to
create a wiring diagram of the data logger connections required to be provided to the installer.
The wiring diagram generated by the programming software has the following form:
HD32MT.1 Wiring Diagram
Measure Data
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
NTC beta=3579.0
Ratio of Voltages Vs/VExc
Thermocouples K
Resistance Divider 4Wire
Unipolar Voltage
Bipolar Voltage
Current Loop 4-20mA
Digital Pulses
Switch Closure
Radiometry
HD2003 SpeedWind
HD2003 Direction
HD2003 Pressure
HD2003 Temperature
HD2003 R. Humidity
HD2003
HD2003
HD2003
HD2003
HD2003
Scan Period: 2 sec
# Name
b
c
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
Sensor_01
Sensor_02
Sensor_03
Sensor_04
Sensor_05
Sensor_06
Sensor_07
Sensor_08
Sensor_09
Sensor_10
Air_Speed
Direction
Pressure
Temperature
RH
----------------
Unit
deg C
degrees
deg C
deg_F
%RH
mbar
ppm
mm
m/s
W/m2
m/s
degrees
mbar
deg C
%
----------------
Program: My_System
Channel Wiring
UNI1
UNI2
BIP2
BIP3
UNI7
BIP5
BIP6
PULSE 1
SW IN 1
BIP7
COM 485
[NTC-> closest by H to G] [Reference Rf-> closest by H to E]
[+Vs-> L] [+VExc-> E] [-Vs and -VExc-> G]
[+Signal-> H+E] [-Signal-> L]
[wire #1-> E wire #2-> H] [wire #3-> L wire #4-> G]
[Signal-> H] [Ground-> G]
[+Signal-> H] [-Signal-> L]
[Shunt-> closest by H to L] [-mA-> H] [+mA-> +PWR] [L-> GROUND]
[Signal-> PULSE P1] [Ground-> GROUND]
[Signal-> SW IN 1] [Ground-> ISOLATED ground]
[+Signal-> H] [-Signal-> L]
[DATA+ -> D+] [DATA- -> D-] [Ground-> ISOLATED ground]
The diagram consists of a head which shows the name of the program and the acquisition
interval, and a series of columns describing the sensors provided:
1.
Sequential number of the sensor.
2.
Description of the sensor output.
3.
Letter designating the sensor: the information is assigned automatically by the program
and can be neglected with regard to the connection.
4.
Sensor name: identifies the sensor to be connected.
5.
The unit of measurement of the quantity measured by the sensor.
6.
Input of the logger to which the sensor must be connected.
7.
Details of the connection to be made. Information on the connection described in detail in
the previous paragraphs are reported in mnemonic form.
8.
Summary information about programming parameters. In some cases, the column can
not be present if there is not enough space to print.
9.
Name of the program.
10. Acquisition interval (Scan Period).
The columns to be considered for installation are the 4 (which sensor must be installed), 6
(which input should be connected to the sensor) and 7 (connection details).
Note: The connection diagram does not include the values of possible resistors to be connected
externally to the data logger, such as shunt resistors, the resistors of the divider to attenuate
the signals or the reference resistors of NTC. Values must be supplied separately by the
programmer.
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5.10 EXAMPLES OF METEOROLOGICAL STATIONS
Here are two examples that illustrate the connection of several sensors that are used routinely
in a weather station.
The examples show two possible solutions to measure the following parameters: temperature,
humidity, barometric pressure, wind speed and direction, amount of rainfall, global and net
solar radiation.
It is assumed that the stations are powered by a battery connected to a solar panel.
In the figures the choice of inputs to which sensors are connected is only an example. In a real
installation adhere to the wiring diagram supplied by the programming software of the data
logger.
Example 1
Consider a weather station that requires the installation of the following sensors:
•
HD9009TRR temperature and relative humidity transmitter with output 0-1V
temperature output connected to the single-ended analog input number 1
relative humidity output connected to the single-ended analog input number 2
•
Vane sensor for wind direction with potentiometer output
cursor of the potentiometer connected to the single-ended analog input number 3
potentiometer extremes connected to terminals E2 (excitation) and G (analog ground)
•
HD9408TR BARO barometric transmitter with output 0-1V
pressure output connected to the single-ended analog input number 4
•
LP NET 07 Net radiometer with mV output
connected to the differential analog input number 3
•
LP PYRA 02 Pyranometer with mV output
connected to the differential analog input number 4
•
HD2013 tipping bucket rain gauge
connected to the SW IN number 1 input
•
Cup anemometer with contact output
connected to the SW IN number 2 input
The sensors that require power (HD9009TRR and HD9408TR BARO) are connected to the main
power supply of the system.
The connection diagram provided by the software program takes the following form:
Sensors to be
connected
Inputs of
data logger
HD32MT.1 Wiring Diagram
Measure Data
1
2
3
4
5
6
7
8
Unipolar Voltage
Unipolar Voltage
Ratio of Voltages Vs/VExc
Unipolar Voltage
Radiometry
Radiometry
Rain Gauges
Switch Closure
Scan Period: 60 sec
# Name
a
b
c
d
e
f
g
h
Connections to be
performed
HD9009TRR_T
HD9009TRR_RH
Wind_Dir
HD9408TRBARO
LP_NET_07
LP_PYRA_02
HD2013
Cup_Anemom.
Unit
Channel Wiring
Degrees_C
%RH
Degrees
mbar
W/m2
W/m2
mm
m/s
-
32
UNI1
UNI2
UNI3
UNI4
BIP3
BIP4
SW IN 1
SW IN 2
-
[Signal-> H] [Ground-> G]
[Signal-> L] [Ground-> G]
[+Vs-> H] [+VExc-> E] [-Vs and -VExc-> G]
[Signal-> L] [Ground-> G]
[+Signal-> H] [-Signal-> L]
[+Signal-> H] [-Signal-> L]
[Signal-> SW IN 1] [Ground-> ISOLATED ground]
[Signal-> SW IN 2] [Ground-> ISOLATED ground]
The physical connection of the sensors is shown below:
Solar panel
Anemometer
Battery
Charge
Regulator
Black
White
Blue
Red
Black
Blue
Red
Vane
Toward ground point
Note: for simplicity, in the figure have been omitted the ground connections of the individual
sensors.
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33
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Example 2
In this example, measurements of temperature, relative humidity, pressure, wind speed and
direction are made by the ultrasonic anemometer HD52.3D147. The sensors installed in the
weather station thus becomes:
•
HD52.3D147 Ultrasonic anemometer
connected to the logger via the RS485 port (COM 485)
•
LP NET 07 Net radiometer with mV output
connected to the analog differential input number 1
•
LP PYRA 02 Pyranometer with mV output
connected to the analog differential input number 2
•
HD2013 tipping bucket rain gauge
connected to the SW IN input number 1
The HD52.3 D147 is connected to the main power supply of the system.
The connection diagram provided by the software program takes the following form:
Sensors to be
connected
Connections to be
performed
Inputs of
data logger
HD32MT.1 Wiring Diagram
Measure Data
1
2
3
4
5
6
7
8
9
10
11
12
13
HD52.3D SpeedWind
HD52.3D Direction
HD52.3D Pressure
HD52.3D Temperature
HD52.3D R. Humidity
HD52.3D
HD52.3D
HD52.3D
HD52.3D
HD52.3D
Radiometry
Radiometry
Rain Gauges
# Name
a
b
c
d
e
f
g
h
i
j
k
l
m
W_Speed
W_Dir
Pressure
Temperature
Rel_Humidity
---------------LP_NET_07
LP_PYRA_02
HD2013
Unit
Channel Wiring
m/s
degrees
mbar
deg C
%
---------------W/m2
W/m2
mm
COM 485
[DATA+ -> D+]
BIP1
BIP2
SW IN 1
[+Signal-> H] [-Signal-> L]
[+Signal-> H] [-Signal-> L]
[Signal-> SW IN 1] [Ground-> ISOLATED ground]
[DATA- -> D-]
[Ground-> ISOLATED ground]
Note that for ultrasonic anemometers there are always 10 quantities reported, although the
quantities actually measured could be less. At unused quantities, dashed lines appear.
The physical connection of the sensors is shown below:
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34
-
Solar panel
Battery
Charge
Regulator
Black
White
Blue
Red
Black
Blue
Red
Toward ground point
Note: for simplicity, in the figure have been omitted ground connections of the individual
sensors.
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35
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6 CONNECTION TO THE PC
The data logger can be connected to a PC to do the programming, view real-time
measurements or to download stored data.
There are two ways to connect the instrument to the PC:
• direct cable connection
• connection via a radio modem (radio modem version only)
The operations that can be done with the PC are independent of the type of connection. The
radio connection has the advantage of allowing the management of the instrument at a
distance, especially for installations in remote unattended areas.
To connect to the PC use the COM PC RS232 serial port, with type D-sub 9-pin male
connector.
Note: Communication with the PC is established even in the absence of a program installed in
the data logger. In the absence of an operating program, the instrument does not make
measurements or recordings, then will not be available monitor and data downloading
functions, but will only be available the programming function.
Here are the wiring diagrams for the two modes.
6.1
DIRECT CONNECTION VIA CABLE
Connect the serial cable between the data logger COM PC port the and the PC. Depending on
the data logger that connects to a serial port RS232 or USB port, use the following cables:
•
the cable code 9CPRS232 "null modem" to connect to a RS232 serial port.
•
the cable code C205 for connection to a USB port, installing the drivers for the PC (the
cable has a built-in RS232/USB converter).
Power supply
For connection to an RS232 serial port you can use a standard RS232 "null modem" cable.
The cable should have female connectors on both sides, and the instrument end of the
connector must be 9-pin Sub-D type. The cable must not exceed a length of 15 meters.
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6.2
CONNECTION VIA RADIO MODEM (ONLY FOR THE RADIO MODEM VERSION)
In the model with radio modem option, a radio communication between instrument and PC can
be established through the use of the external optional VHF radio modems.
You need two radio modems: one connected to the COM PC port of the instrument and one
connected to your PC. The two radio modems must be connected to the respective antennas,
through the coaxial cables with BNC connector, the cables are fixed length.
Power supply
Antenna
Antenna
Modem
Power supply
If your PC has no RS232 port but only USB ports, it can be placed between the modem and the
PC a RS232/USB converter, in which case make sure you install the drivers in the PC.
The radio modem must be configured with a serial communication speed of 38400 bits/s and
should be able to handle the RTS and CTS signals.
The two cables that connect the radio modem to the instrument and the PC are the same.
They are standard RS232 serial cables with female connector on the side of the instrument and
male connector on the side of the modem. The connectors are 9-pin Sub-D type. The length of
each cable must not exceed 15 meters.
The maximum distance between the two radio modems depends on various factors, including
the power output of the radio transmitter, the sensitivity of the radio receiver, the antenna
type used and the presence of obstacles between the two antennas.
For VHF Radio Modems with a power output of 500 mW (effective radiated power), operating
at 169MHz with a whip antenna, the distance can vary from 12 to 15km in the open air and
from 2 to 3 km inside buildings.
Upon request, Delta OHM provides VHF Radio Modem with 169MHz frequency, pre-configured
and ready for use, including a whip antenna and RS232 serial port.
Warning:
1) The two Radio Modems provided by Delta OHM are configured differently and
therefore are not interchangeable between PC and data logger, connect the two
modems according to the instructions given on the modems.
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-
2) It is guaranteed the functioning of the instrument with the Radio Modems
provided by Delta OHM. We can not guarantee the compatibility of radio modems
other than those supplied.
Note: Even if the radio modems communicate with the instrument and the PC at 38400 bit/s,
the total communication speed of the system depends on the speed of data transfer between
the two radio frequency modems. For example, if the communication speed between the two
radio modems is 3600 baud, also the total communication speed of the system is limited to
3600 baud.
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-
7 GSM CONNECTION
In both the basic and Radio Modem versions of the data logger, an optional external GSM
module can be connected. By connecting the GSM module, the data logger is capable of
sending alarm messages via SMS to mobile phones, and information about the data stored via
Internet to e-mail and FTP addresses.
The GSM module is connected to the data logger COM AUX port. To the module must be
connected its antenna.
The cable connecting the logger to the GSM module is a standard RS232 serial cable with
female connector on the side of the instrument and male connector on the side of the module.
The connectors are 9-pin Sub-D type. The cable length must not exceed 15 meters.
Power supply
GSM
Antenna
SMS
GSM
Cell
e-mail
Mobile
phone
FTP
The GSM module must be configured with a serial communication speed of 115200 bits/s.
In the GSM module must be inserted a SIM card enabled for data transmission. The card must
be obtained from a telephone operator that has a suitable GSM network coverage in the place
where you will install the system. For the insertion mode of the card refer to the
documentation of the module.
Information on telephone numbers and e-mail and FTP addresses are stored in the data logger
using the HD32MTLogger software (see software manual).
Upon request, Delta OHM provides the GSM module already configured, including a whip
antenna and RS232 serial port.
Warning: it is guaranteed the functioning of the instrument only with the GSM
module provided by Delta OHM. We can not guarantee the compatibility of modules
other than the one provided.
For the transmission of data via e-mail and FTP, you must have an SD card inserted in the
data logger, since the data logger transmits data stored on the card and not in internal
memory. The memory card is not needed for sending the alarm SMS.
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8 CHANGING THE CONFIGURATION
The chapter is dedicated to those who have a data logger with a measures and stores program
installed and need to quickly make small changes in the program, for example to change the
acquisition interval or replace a sensor, without having a thorough knowledge of the
programming mode.
The possibility of modifying the program are illustrated by typical examples of changes that
may be required. This chapter is not intended as a substitute for a complete discussion of
programming; if you are unsure about the changes to be made you should refer to chapter 9
which shows in detail the programming mode and chapter 5 for details on the possibilities for
sensor connection.
The program of measures and recordings can be changed even if the data logger is already
installed and running in a system.
The program change is divided into the following steps:
8.1
•
Connecting to a PC and reading the program installed in the data logger.
•
Changing the configuration of sensors or acquisition/storage intervals.
•
Installing the modified program in the data logger
CONNECTING TO THE PC AND READING THE PROGRAM INSTALLED
Changing the installed program requires that the instrument is powered on and connected
(directly or via radio modem) to a PC where the HD32MTLogger software is installed. If the
instrument is not already connected, connect the instrument by one of the methods described
in chapter 6 on page 36.
Proceed with the following points:
1. On the PC, run the HD32MTLogger software via the icon on the desktop or selecting the
program in the Delta OHM folder of Programs menu.
2. In the Tools menu, select Serial Connection.
3. In the Connection Properties window, apply the check mark next to the Radio Modem
indication for the model with Radio Modem option. For the base model, make sure the
check mark is not present; if the check mark is present, click on the box next to the
indication to deselect.
-
40
-
Model with Radio Modem option
Basic Model
No check
Check
Select the COM port number of the PC which is connected to the instrument or radio
modem, then click Apply to return to the main window.
If the COM port number is not known, leave the setting unchanged and press Apply to
exit, the program will automatically search for an instrument connected to the available
ports on your PC, starting from the set.
Note: the remaining communication parameters are fixed, the difference between the
two models of data loggers is the data transfer rate (bits per second): 38400 for the
model with radio modems and 115200 for the base model.
4. Select the Connect icon in the toolbar.
5. If the connection is successfully established, the software reads the data logger program
installed and then displays the DataLogger Information, which are listed in the order: the
data logger model, serial number, firmware version, the name of the program installed in
the data logger, the acquisition interval and the number of store tables (a store table is a
list of measures that are stored together).
Press OK to access the software main window.
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41
-
Note: when the logger is connected to your PC, capture and storage measures continue
normally in accordance with the requirements of the program installed.
Note: If you attempt a connection while the logger is recording data in the SD memory
card, you receive a warning message (SD Card Running). In this case, wait a few
minutes and try to press the Connect icon again.
If you experience connection errors, follow the instructions of paragraph 9.5.1 on page.
100
6. Select the Program Setup icon in the command bar.
7. In the window that appears, select RUNNING Program.
8. The window of the program installed appears and it is now possible to make the desired
changes.
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-
8.2
CHANGING THE INSTALLED PROGRAM
The possibilities of modifying the installed measures and recordings program are illustrated by
the following four examples:
1. Changing the measures recording interval.
2. Changing the parameters of a sensor.
3. Adding a sensor.
4. Removing a sensor.
8.2.1 CHANGING THE MEASUREMENT RECORDING INTERVAL
The measurements stored by the data logger are listed in the tables called Table n. that
appear on the left of the installed program window.
Store tables
Measurements can be listed all in a single table (Table n.1) or can be divided into multiple
tables numbered in sequence (Table n.1, Table n.2, etc.). Different tables may have different
recording intervals.
To change the recording interval proceed as follows:
1. Select the table where you want to change the recording interval, by clicking the
corresponding tab.
2. Write the new interval value in the field to the right of the indication Store Period. If
necessary, select minutes or seconds for the interval unit of measurement.
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43
-
Note: the recording interval (Store Period) must be equal or multiple of the acquisition
interval (Scan Period) which appears on the right side of the window.
Store Period
Scan Period
3. Press Create to save the changes and generate the file necessary for the data logger.
The window that allows you to specify the file name and path where to save it to your PC
appears. After saving, a summary report is displayed, press OK to return to the program
window.
4. In the program window appears, on the lower right, the estimated number of days
needed to fill the internal memory of the data logger with the new recording interval
(Estimated Maximum Logging Period)
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-
5. Press Exit to close the program window.
The program is ready to be installed in the data logger. Please see section 8.3 on page 52 for
how to install it.
8.2.2 CHANGING THE PARAMETERS OF A SENSOR
The sensors used are listed in the right part of the program window, in the section entitled
MEASURE List.
Changing the parameters of a sensor may be necessary, for example, when a sensor is
replaced with another of the same type, and should therefore enter the configuration values of
the new sensor.
To change the parameters of a sensor, proceed as follows:
1. Make sure that in the left side of the window of the program is selected the panel
Sensors (the panel is selected by default when opening the program).
2. In the list of sensors (MEASURE List) that appears in the right side of the window, double
click on the row of the sensor which you want to change the parameters.
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45
-
3. This opens the configuration window that displays all the available parameters for the
desired sensor. Write or select a new value at the required parameter, then press OK to
close the window.
Note: only the fields with a white background can be changed.
4. Press Create to save the changes and generate the file necessary for the logger.
The window that allows you to specify the file name and path where to save it to your PC
appears. After saving, a summary report is displayed, press OK to return to the program
window.
5. Press Exit to close the program window.
The program is ready to be installed in the data logger. Please see paragraph 8.3 on page 52
on how to install it.
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8.2.3 ADDING A SENSOR
It is described below how to add an additional sensor to the list of those already in the
program.
1. Make sure that the Sensors panel is selected in the left side of the window of the
program (the panel is selected by default when opening the program).
2. Expand the Sensors folder and then the folder containing the type of sensor to add (e.g.
Industry). Then select the type of sensor and make a click on the Add Measure button
with the green arrow at the center of the window (or alternatively perform a double click
on the desired sensor).
3. The configuration window appears, where you can enter all the required parameters.
Define the sensor name in the Name field (for example, you can enter the model of the
sensor). Then fill in all editable fields (only the ones with white background) depending
on the characteristics of the new sensor.
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-
Note: for a full description of the parameters relating to each type of sensor used, see
paragraph 9.2 on page 54.
4. Press OK to return to the program window. In the bottom of the list of measures
(MEASURE List) the added sensor is displayed.
5. For storing the measure of the sensor in the data logger, you must insert the measure
into a store table. In the left panel, select the store table in which you want to insert the
new measure.
6. In the right panel select the added sensor and click on the Add Store button with the blue
arrow at the center of the window.
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-
7. In the window that opens (Algorithm), select the type of value that
you want to store between: the instant value (OneSample), mean
(Average), maximum (Max), minimum (Min) or standard deviation
(StDeviation).
Note: for pulse counting it is also active total count function (Total).
Note: Alarms button is only active if you select the alarm table or if
the table is empty (see section Creating the store tables).
8. The new measurement will appear in the left panel of the program window.
9. Press Create to save the changes and generate the file needed by the data logger.
It appears the window that allows you to specify the file name and path where to save it
to your PC. After saving, a summary report is displayed, press OK to return to the
program window.
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-
10. If you want to print the updated wiring diagram, press Print.
Then select Print Wiring Diagram and press OK.
11. Press Exit to close the program window.
The program is ready to be installed in the data logger. Please see paragraph 8.3 on page 52
on how to install it.
8.2.4 REMOVING A SENSOR
The operation to remove a sensor is generally required when you replace one sensor with
another one having a different type of output (for example if you replace a sensor with voltage
output with another one with current output). In this case, you must first remove the sensor to
be replaced from the program, in order to free the input of data logger and make it available
for a new connection, and then add the new sensor as shown in the previous paragraph.
To remove a sensor, proceed as follows:
1. In the list of sensors that appears on
the right side of the window, select
the sensor you want to remove.
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-
2. At the bottom of the panel, press Remove Measure.
A message appears asking you to confirm the removal, press Yes, the sensor is also
automatically removed from the storage tables.
At this point you can add a new sensor proceeding as indicated in paragraph 8.2.3, or
save the changes by going on with the following points.
3. Press Create to save the changes and generate the file necessary for the logger.
The window that allows you to specify the file name and path where to save it to your PC
appears. After saving, a summary report is displayed, press OK to return to the program
window.
4. Press Exit to close the program window.
The program is ready to be installed in the data logger. Please see paragraph 8.3 on page 52
on how to install it.
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8.3
INSTALLING THE CHANGED PROGRAM IN THE DATA LOGGER
After modifying the program, it must be made to work by installing it in the data logger.
Warning: The installation of a program in the data logger will erase all
measurements stored in the internal memory. To avoid losing data stored in internal
memory you need to transfer them to your PC using the command "Dump LOG" of the
HD32MTLogger software before starting the procedure of installation of the program. The
measurements stored in the removable SD memory card, if present, remain stored.
To install the program in the data logger proceed as follows:
1. Select the Send Program icon in the toolbar.
Note: the command is only active if the instrument is connected, otherwise proceed to
the connection as indicated in paragraph 8.1 on page 40.
2. In the window that opens, select the name of the previously saved program (the
programs that can be installed in the data logger have the extension "img") and press
Open. A message appears to remind you that measurement data will be lost. Press Yes to
continue.
3. Wait until the program is installed in the data logger (a progress bar indicates the
installation status).
If the installation completed successfully, the DataLogger Information window is
displayed again. Click OK to exit. The program installed starts automatically to operate in
the data logger, capturing and storing the programmed measurement.
Note: The program already existing in the data logger is cleared at the beginning of the
installation of the new program. During installation, if error messages appear and the
installation is interrupted, the data logger is left without a working program. In this case
you must repeat the installation procedure from the beginning.
4. To end the communication between PC
and data logger, select the Disconnect
icon.
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9 CREATION OF THE CONFIGURATION
If the logger is supplied without a program of measures and loggings installed, you must
create a program and install it by connecting the logger to the PC, all with the help of
HD32MTLogger application software.
It is advisable to program the data logger prior to electrically connect the sensors,
because the programming software automatically assigns the terminals to which
sensors must be connected and does not allow an arbitrary assignment of sensors to
certain inputs.
During the creation of the program it is not necessary that the logger is physically connected
to the PC. The connection of the logger is only necessary to install the program at the end of
the preparation.
The steps to create a program can be divided into the following phases:
9.1
•
Starting the HD32MTLogger software and opening a new program (paragraph 9.1 on
page 53).
•
Defining the list of sensors to be connected to the data logger and setting of the
parameters of the various sensors (paragraph 9.2 on page 54).
•
Creating the store tables (paragraph 9.3 on page 89).
•
Creating the file to be installed in the data logger (paragraph 9.4 on page 96).
•
Connecting the data logger to the PC and installing the measurement and recording
program (paragraph 9.5 on page 98).
CREATING THE PROGRAM FILE
To open a new program proceed as follows:
1. Start the HD32MTLogger software via the icon on the desktop or selecting the program
in the Delta OHM folder of the Programs menu.
2. Select the Program Setup icon in the toolbar.
3. In the window that opens, select NEW Program.
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4. Enter a name for the new program in the Program Name field.
The name must start with a letter and can contain only letters, numbers, the character
"_" and the point (but may not be the last character of the name).
5. In the Scan Period field, enter the acquisition interval of the sensor measurements (from
1 to 60 seconds).
Note: The interval value can be added or changed even after.
6. Press OK, the new program window opens.
9.2
LIST OF SENSORS AND SETTING OF PARAMETERS
After opening the measurements and recordings program window, you must define the list of
sensors to be connected to the data logger and set the parameters for each sensor.
The measures that you can perform with the data logger are divided into three categories:
•
Universal Measurements
o Unipolar Voltage
Measure voltage in single-ended mode
o Bipolar Voltage
Measure voltage in differential mode
o Resistance Divider
2-wire resistance or 3-wire potentiometric measurement
o ResistanceDivider 4Wire:
4-wire resistance measurement
o Adder Pulses
Pulse or potential-free contact switching count
o Input Current 4-20 and 0-20mA
Current measurements
o Digital Input
Detection of TTL logic levels
• Environmental Analysis
o U.S. Anemometers HD2003
Measures of HD2003 and HD2003.1 anemometers
o U.S. Anemometers HD52.3D
Measures of HD52.3D… series anemometers
o Rain Gauges
Measure of rain quantity
o Radiometry
Measure of solar radiation
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-
• Industry
o Pt100-Pt1000 thermometers
Temperature measures with Pt100-Pt1000 probe
o Thermocouples
Temperature measures with thermocouple probe
o NTC Thermistors
Temperature measures with NTC thermistors
To add a sensor to the program, proceed as follows:
1. In the list of measurements that can be executed by the data logger, identify the one
corresponding to the sensor to be connected (for example Input Current 4-20 and
0-20mA in the case of a transmitter with current output, or Radiometry in the case of a
solar radiation probe).
2. In the program window, make sure that in the left side it is selected the Sensors panel
(the panel is selected by default when opening the program).
3. Expand the Sensors folder and then the folder of the category containing the type of
measurement to be added (e.g. Industry if you are adding a temperature probe). Then
select the type of measure (e.g. Thermocouples) and make a click on the Add Measure
button with the green arrow at the center of the window (or alternatively, double-click on
the name of the configuration).
4. The window for sensor configuration appears, in which you can enter all the required
parameters.
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-
Identification name
Unit of
measurement
Input of
data logger
Fill in all editable fields (only the ones with white background) depending on the
characteristics of the sensor. All windows have in common three configuration fields:
o The Name field, where you can enter an identifying name for the sensor (for example
the model of the sensor, or the type of measured quantity). The name must start with
a letter and can be up to 12 alphanumeric characters.
o The field to indicate the unit of measured quantity. The field is usually positioned just
below the Name field. Depending on the type of sensor being configured, the unit can
be selected from a drop-down list or it can be inserted freely; in the second case must
begin with a letter and be no longer than 12 alphanumeric characters.
o The Channel field, which indicates the input of the logger to which the sensor must be
connected. The input is assigned automatically, you can not change it manually.
The remaining fields depend on the selected sensor. For a full description of parameters
for each sensor type, see the following sections (from 9.2.1 to 9.2.13).
Press OK to return to the program window.
Note: to cancel the insertion of the sensor, select the tick at the top right.
5. In the right panel of the window (MEASURE List) it is displayed the added sensor along
with configuration data.
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-
Repeat the procedure for each of the sensors to be connected to the data logger. Each new
sensor is appended to the list of sensors already in place.
Note: if a sensor measures more quantities and has multiple outputs, it is necessary to repeat
these steps for each output you want to connect (as if they were more separate sensors).
After the insertion of a sensor, you can change the parameters by double clicking on the row of
the sensor in the list in the right pane of the window (MEASURE List).
Note: double click to change the parameters already entered is active only if in the left pane of
the window is selected the Sensors panel.
If you want to remove one of the sensors already placed in the right pane, just select it and
press the Remove Measure button in the lower side of the pane.
Pressing the Remove Measure button prompt to confirm the removal (message: Do you wish
to remove this measure?), press Yes to confirm.
WARNING MESSAGES
When entering the sensors you can get the following messages:
• Scan Period too short !
The message appears when the number
of sensors becomes too high to be able
to acquire all the measures between two
successive instants of acquisition. The
measure that you are trying to enter will
not be added to the list of measures.
Press OK to return to the program
window. To insert additional measures it
is necessary to increase the acquisition
interval in the Scan Period field.
•
The Unipolar Channels n. 1,2 or 3,4 aren't available !
The message appears when the single-ended inputs 1,2,3 and 4 are already occupied, and
you try to insert NTC Thermistors and Resistance Divider sensor types that can only be
connected to these inputs. To insert the sensor it is necessary first to free one of the
inputs, deleting the sensor from the list with the command Remove Measure.
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• Not other free Channels !
The message appears when you try to insert a sensor but there are no more inputs
available for that type of sensor.
•
Total Measure Data over 30 reached!
The message appears when you try to insert a sensor but there are already 30 measures
present.
Note: when calculating the number of measures take into account that each Pt100-Pt1000
Thermometers or NTC Thermistors measurement is equivalent to two measures, and if
there is at least a Thermocouples measure you should add two measures for the cold
junction (for the total of all thermocouples).
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9.2.1 UNIPOLAR VOLTAGE AND BIPOLAR VOLTAGE CONFIGURATION
In the Universal Measurements category, select the item:
•
Unipolar Voltage to set up a single-ended voltage measurement
•
Bipolar Voltage for configuring a differential voltage measurement
UNIPOLAR VOLTAGE SELECTION
BIPOLAR VOLTAGE SELECTION
By pressing the Add Measure button to add the measure, the configuration window shown
below opens. In the figure there is, for reference, also the detail of the terminal board related
to the connection scheme that appears in the window (see paragraph 5.3.1 on page 17 for the
details of the connections).
UNIPOLAR VOLTAGE WINDOW
Name
Measure Channel
UNI
unit
Measurement
range
BIPOLAR VOLTAGE WINDOW
Wiring
diagram
Name
Number single-ended
input (UNI)
Wiring
diagram
Measurement Offset Gain
range
Offset Gain
Input +
channel UNI 2 (L)
Measure Channel
BIP
unit
Input —
channel BIP 1 (L)
GND
Input +
channel UNI 1 (H)
Number differential
input (BIP)
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Input +
channel BIP 1 (H)
In the configuration, you must fill in all fields with white background. The fields in gray are not
modifiable. The following describes the fields in the window.
• NAME
Identification name of the sensor. You can assign as the name, for example, the model of the
sensor, or the type of measured quantity. The name must start with a letter and can be up to
12 alphanumeric characters.
The name uniquely identifies the measure that you are entering, you can not assign the same
name to several measures.
• UNIT (UNIT OF MEASUREMENT)
A measure of the quantity detected by the sensor. It must begin with a letter and can be a
maximum of 12 characters.
The unit is inserted in accordance with the values of Offset and Gain parameters (see the
corresponding point below in the paragraph for setting these parameters).
• CHANNEL UNI
OR
CHANNEL BIP
It Indicates the number of analog input to which the sensor must be connected. The software
automatically assigns the first free input. The number is not editable by the user. The location
of the analog inputs is given at point 4 of the terminal board figure on page 8.
• RANGE
It is the measuring range of the data logger input. Click on the Range
field and then select a measuring range suitable for the sensor that is
being inserted, so that the voltage sensor output is within the
measurement range selected. There are four selectable ranges:
o
±25mV
o
±100mV
o
±1000mV
o
±2500mV
To get the best resolution of measurement it is convenient to choose the first measurement
range higher than the output of the sensor.
If the sensor output voltage is too high to fall within the ranges available, it is necessary to
reduce the signal by inserting a resistive divider between the output of the sensor and the data
logger input (see paragraph 5.3.1 on page 17 for the connections).
Partition
ratio
To data logger
input
From sensor
output
The sum of the values of R1 and R2 must be greater than the minimum load resistance of the
sensor.
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Only as an example, the table below shows the ranges in mV selectable and the possible need
of the divider for the various voltage outputs typically available in Delta OHM sensors.
Sensor
Output
Selectable
Range (*)
Resistive
Divider
0 ÷ 1V
±1000mV or ±2500mV
No
0 ÷ 5V
±1000mV or ±2500mV
Yes, partition ratio 1/5
0 ÷ 10V
±1000mV or ±2500mV
Yes, partition ratio 1/10
1 ÷ 5V
±1000mV or ±2500mV
Yes, partition ratio 1/5
2 ÷ 10V
±1000mV or ±2500mV
Yes, partition ratio 1/10
(*)
Note: Some sensors can provide an output voltage that exceeds the nominal value of the
scale, if the measured quantity exceeds the range measured. If you want that error condition
is also recorded by the logger, you must set a value in the Range field higher than the nominal
range of the sensor. For example, a sensor with a nominal 0-1V output we have to select the
range ±2500mV and not ±1000mV.
• OFFSET AND GAIN
The value recorded in the data logger is the result of a linear transformation applied to the
value of the input voltage in mV. The transformation is as follows:
Value recorded = Offset + (Gain x Input voltage in mV)
By setting Offset = 0 and Gain = 1, the recorded value is exactly the value of the input voltage
in mV.
Generally the voltage in mV corresponds to the value of a physical quantity, such as
temperature, humidity, pressure, etc. It is therefore more interesting to directly store the
value of the corresponding physical quantity rather than the value in mV. To record directly in
the logger the value of the quantity is sufficient to enter in the fields Offset and Gain the
values calculated by the following relations:
Offset =
(Gis × Vfs ) - (Gfs × Vis )
Gain =
Vfs - Vis
Gfs − Gis
×K
Vfs - Vis
Where: Gis = initial scale of the physical quantity
Gfs = full scale of the physical quantity
Vis = initial scale of the sensor output (in mV)
Vfs = full scale of the sensor output (in mV)
K = inverse of the ratio of partition of any resistive divider connected between the
sensor output and the input of data loggers (K = 1 if the divider is not present)
The value will be recorded in the same unit of measurement of Gis and Gfs values. This unit is
one that should be inserted in the Unit field of the configuration window.
In the Offset and Gain fields must be entered only the numerical value without unit.
Using non-zero Offset and Gain different from 1 produces accurate results only if the sensor
output varies linearly with the measured physical quantity. Otherwise, the recorded value will
be affected by an error which depends on the sensor response. For sensors that have nonlinearity that can not be neglected is advisable to set Offset = 0 and Gain = 1, and just
registering the value of the input voltage in mV.
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Example 1
Suppose you need to configure a temperature transmitter with 0 to 1V output and measuring
range -40 to +80°C. The transmitter output is connected directly to the data logger (there are
no resistive dividers).
The values needed for the computation of Offset and Gain are therefore:
Gis = -40°C
Gfs = +80°C
Vis = 0 mV
Vfs = 1000 mV
K=1
The values needed to calculate the Offset and Gain are:
Offset =
(- 40 × 1000) - (80 × 0) = −40
Gain =
1000 - 0
80 − (- 40)
× 1 = 0,12
1000 - 0
In the Unit field must be indicated degrees Celsius as the unit of measure. Since the maximum
length of 12 characters and it is not possible to insert the special symbol "°", the unit can be
shortened with "degrees C".
Example 2
Suppose you need to configure a barometric transmitter with 1 to 5V output and measuring
range 800 to 1100 mbar. Between the transmitter and data logger is inserted a resistive
divider with a partition ratio of 1/5.
The values needed for the computation of Offset and Gain are therefore:
Gis = 800 mbar
Gfs = 1100 mbar
Vis = 1000 mV
Vfs = 5000 mV
K=5
The values needed to calculate the Offset and Gain are:
Offset =
(800 × 5000) - (1100 × 1000) = −725
Gain =
5000 - 1000
1100 − 800
× 5 = 0,375
5000 - 1000
In the Unit field mbar must be indicated as the unit of measurement.
9.2.2 RESISTANCE DIVIDER CONFIGURATION
In the Universal Measurements category, select Resistance Divider to configure a 2-wire
resistance or 3-wire potentiometric measurement.
By pressing the Add Measure button to add the measure, the configuration window shown
below appears. In the figure there is, for reference, also the detail of the terminal board
related to the connection scheme that appears in the window (see paragraphs 5.3.3 on
page 22 and 5.3.4 on page 23 for the details of the connections).
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Type of
meas.
Name
Measure Channel
unit
UNI
Terminal
(E)
Wiring
diagram
Input +
channel UNI 2 (L)
Number
of
single-ended
channel
(UNI)
Excitation
voltage
Measurable
Values
Offset
GND
Excitation
Input +
channel UNI 1 (H)
voltage
(Exc)
Gain
In the upper left corner of the configuration window there is the box to choose the type of
measure. select:
• Rs/Rf
to set up a 2-wire resistance measurement.
With this option the data logger measures the value of resistance Rs provided
by the sensor compared to the reference Rf resistance value.
• Vs/VExc to set up a 3-wire potentiometric measurement.
With this option the data logger measures the voltage Vs at the input compared
to the value of excitation voltage VExc.
At the opening of the window is selected by default Rs/Rf option. Selecting the Vs/VExc option,
the window shows the wiring diagram for a potentiometric sensor, as shown below:
Type of
meas.
Name
Measure Channel
unit
UNI
Terminal
(E)
Wiring
diagram
Input +
channel UNI 2 (L)
Number
of
single-ended
channel
(UNI)
Excitation
voltage
Offset
Gain
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-
GND
Excitation
voltage
(Exc)
Input +
channel UNI 1 (H)
In the configuration, you must fill in all fields with white background. The fields in gray are not
modifiable. The following describes the fields in the window.
• NAME
Identification name of the sensor. You can assign as the name, for example, the model of the
sensor, or the type of measured quantity. The name must start with a letter and can be up to
12 alphanumeric characters.
The name uniquely identifies the measure that you are entering, you can not assign the same
name to several measures.
• UNIT (UNIT OF MEASUREMENT)
Unit of measurement of the quantity detected by the sensor. It must begin with a letter and
can be a maximum of 12 alphanumeric characters.
The unit is inserted in accordance with the values of Offset and Gain parameters (see the
corresponding point below in the paragraph for setting these parameters).
• CHANNEL UNI
Indicates the number of analog input to which the sensor must be connected. The software
automatically assigns the first free input. The number is not editable by the user. The location
of the analog inputs is given at point 4 of the terminal board figure on page 8.
The programmable inputs for this type of measurement are only the single-ended
inputs 1, 2, 3 and 4.
• CHANNEL EXC (EXCITATION TERMINAL)
Indicates the number of the terminal E which from where the excitation voltage must be
taken, which is the terminal where you must connect one end of the reference resistor Rf or
potentiometer. The number is assigned automatically and is not editable by the user.
• VEXC (EXCITATION VOLTAGE)
It is the excitation voltage applied to terminal E. The value is fixed at 2500 mV.
• Rs/Rf RANGE
The field appears only if you selected Rs/Rf, and indicates the range of measurement of the
resistance Rs of the sensor compared to the reference resistance value Rf. The field can not be
set. The measuring range of Rs depends only on the value of the reference resistance Rf. The
minimum and maximum values measurable are respectively:
Rsmin = Rf / 1000
Rsmax = 100 x Rf
It is recommended that Rf is neither too small nor too large compared to the values that
assumed by the sensor, otherwise there would be a small change in voltage across Rs
therefore a low resolution. The Rf values should be between the minimum (Rsmin)
maximum (Rsmax) of Rs. The Rf values that maximizes the change in voltage across Rs
allows the best resolution is given by the following relation:
can
and
and
and
Rf = Rs min x Rs max
The reference resistor Rf must be a precision resistor and sufficiently stable over time and
exposure to environmental conditions, since the drift of the Rf values results in a measurement
change that this is not due to a real variation of the physical quantity measured.
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• OFFSET AND GAIN
The value recorded in the data logger is the result of a linear transformation applied to the
measured value.
If you select the Rs/Rf measurement type, the transformation is:
Value recorded = Offset + (Gain x Rs/Rf)
If you select the type of measurement Vs/VExc, the formula is:
Value recorded = Offset + (Gain x Vs/VExc)
By setting Offset = 0 and Gain = 1, the recorded value is Rs/Rf or Vs/VExc depending on the
type of measurement selected.
Generally, the measured value corresponds to the value of a physical quantity, such as
temperature, wind direction, etc.. It is therefore more interesting to store directly the value of
the physical quantity. To record directly in the logger the value of the quantity is sufficient to
enter in the fields Offset and Gain the values calculated by the following relations:
Offset =
(Gis × Vfs ) - (Gfs × Vis )
Gain =
Vfs - Vis
Gfs − Gis
Vfs - Vis
Where: Gis = initial scale of the physical quantity
Gfs = full scale of the physical quantity
Vis = value of Rs/Rf or Vs/VExc at initial scale (dimensionless value)
Vfs = value of Rs/Rf or Vs/VExc at full scale (dimensionless value)
The value will be recorded in the same unit of measurement of Gis and Gfs values. This unit is
the one that should be inserted in the Unit field of the configuration window.
In the Offset and Gain fields must be entered only the numerical value without unit.
Using non-zero Offset and Gain different from 1 produces accurate results only if the sensor
output varies linearly with the measured physical quantity. Otherwise, the recorded value will
be affected by an error which depends on the sensor response. For sensors that have nonlinearity that can not be neglected it is advisable to set Offset = 0 and Gain = 1, and just
registering the value measured without applying transformations.
Example
Suppose you need to configure a vane sensor for wind direction with potentiometric output,
whose measurement range is 2 to 357°.
The sensor has a dead band of 5° not symmetric around the reference direction (0°). It is
assumed that the potentiometer is at minimum (0 ohm ⇒ Vs = 0) when the measurement is
2°, and is instead at maximum (Vs = VExc) when the measure is 357°. To calculate the Offset
and Gain is not important the absolute value of the potentiometer in ohm.
The values needed to calculate the Offset and Gain are therefore.
Gis = 2°
Gfs = 357°
Vis = 0
Vfs = 1
The values of the parameters to be included in the configuration window are:
Offset =
(2 × 1) - (357 × 0) = 2
Gain =
1- 0
357 − 2
= 355
1- 0
In the field Unit must be indicated degrees as unit of measurement.
Note: in the particular case that the sensor has a dead band D symmetrical to the reference
direction, we get Offset = D/2 and Gain = 360° - D.
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9.2.3 RESISTANCE DIVIDER 4-WIRE CONFIGURATION
In the Universal Measurements category, select 4 Wire Resistance Divider 4-Wire for setting up
a 4-wire resistance measurement.
By pressing the Add Measure button to add the measure, the configuration window shown
below appears. In the figure there is, for reference, also the detail of the terminal board
related to the connection scheme that appears in the window (please see the paragraph 5.3.5
on page 23 for the details of the connections).
Name
Measure
unit
Channel Measurement
range
BIP
Wiring
diagram
Input —
channel BIP 1 (L)
Number
of
differential
input
(BIP)
Reference
voltage
Internal
resistance
Gain
GND
Excitation
voltage
(Exc)
Input +
channel BIP 1 (H)
Offset
In the configuration window, you must fill in all fields with white background. The fields in gray
are not modifiable. The following describes the fields in the window.
• NAME
Identification name of the sensor. You can assign as the name, for example, the model of the
sensor, or the type of measured quantity. The name must start with a letter and can be up to
12 alphanumeric characters.
The name uniquely identifies the measure that you are entering, you can not assign the same
name to several measures.
• UNIT (UNIT OF MEASUREMENT)
Unit of measurement of the quantity detected by the sensor. It must begin with a letter and
can be a maximum of 12 alphanumeric characters.
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The unit is inserted in accordance with the values of Offset and Gain parameters (see the
corresponding point below in the paragraph for setting these parameters).
• CHANNEL BIP,EXC
Indicates the number of analog input to which the sensor must be connected. The software
automatically assigns the first free input. The number is not editable by the user. The location
of the analog inputs is given at point 4 of the terminal board figure on page 8.
• RANGE
It is the measuring range in mV of data logger input. Click on the Range
field and then select a measuring range suitable for the sensor that is
being inserted, so that the voltage at the data logger input is within the
measuring range selected. There are three selectable ranges:
o
±100mV
o
±1000mV
o
±2500mV
To get the best resolution of measurement it is convenient to choose the first measurement
range higher than the maximum voltage drop Vsmax on the resistance Rs to be measured,
given by the relation.
Vsmax = VRef ×
Rsmax
Rsmax + Rfint
(VRef = 2500 mV and Rf int = 6375 ohm are fixed values)
• VREF (REFERENCE VOLTAGE)
It is the reference voltage applied to the divider comprising the sensor resistance and the
internal resistance Rf of the data logger. The value is fixed at 2500mV.
• RF INT (RF INTERNAL RESISTANCE)
It is the internal resistance of the logger, interposed between terminal E and the internal
reference voltage. The value is fixed at 6375 ohms.
• OFFSET AND GAIN
The value recorded in the data logger is the result of a linear transformation applied to the
measured value. The formula is the following:
Value recorded = Offset + (Gain x Rs)
By setting Offset = 0 and Gain = 1, the recorded value is exactly the value of the resistance Rs
offered by the sensor.
Generally, the measured value corresponds to the value of a physical quantity, e.g.
temperature. It is therefore more interesting to store directly the value of the physical quantity
rather than the resistance value measured. To record directly in the logger the value of the
quantity is sufficient to enter in the fields Offset and Gain the values calculated by the
following relations:
Offset =
(Gis × Vfs ) - (Gfs × Vis )
Gain =
Vfs - Vis
Gfs − Gis
Vfs - Vis
Where: Gis = initial scale of the physical quantity
Gfs = full scale of the physical quantity
Vis = resistance value Rs of the sensor initial scale (in ohm)
Vfs = resistance value Rs of the sensor full scale (in ohm)
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The value will be recorded in the same unit of measurement of GIS and Gfs values. This unit is
one that should be inserted in the Unit field of the configuration window.
In the Offset and Gain fields must be entered only the numerical value without unit.
Using non-zero Offset and Gain different from 1 produces accurate results only if the sensor
output varies linearly with the measured physical quantity, otherwise the recorded value will
be affected by an error which depends on the sensor response. For sensors that have nonlinearity that can not be neglected is advisable to set Offset = 0 and Gain = 1, and simply
recording the measured resistance value.
Example
Suppose you need to configure a resistive temperature sensor, whose measuring range is -50
to 200°C. The values of sensor resistance at initial and full scale are respectively 80.31 ohm
and 175.86 ohm.
The values needed to calculate the Offset and Gain are therefore:
Gis = -50°C
Gfs = 200°
Vis = 80.31 ohm
Vfs = 175.86 ohm
The values of the parameters to be included in the configuration window are:
Offset =
((- 50) × 175.86 ) - (200 × 80.31) = −260.125
175.86 - 80.31
Gain =
200 − (- 50)
= 2.616
175.86 - 80.31
In the field Unit must be indicated degrees Celsius as the unit of measurement. Since the
maximum length is 12 characters and it is not possible to insert the special symbol "°", the
unit can be shortened with "degrees C".
9.2.4 ADDER PULSES → DIGITAL/ANALOG PULSES CONFIGURATION
To configure the digital or analog high-frequency pulse counting (up to 50KHz), select the item
Adder Pulses in the category Universal Measurements.
By pressing the Add Measure button to add the measurement, the window for the selection of
the type of pulses to be counted appears. Select the Digital/Analog Pulses option.
Press OK to confirm, the configuration window shown below appears. In the figure there is, for
reference, also the detail of the terminal board related to the connection scheme that appears
in the window (see section 5.5.1 on page 26 for details of the connections).
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Selection of
Counts/Frequency
Type of
input
Name
Offset
Measure
unit
Channel
PULSE
Input +
channel P2
Wiring
diagram
Ground
Gain
Input +
channel P1
In the top left of the configuration window select the option:
• Counts
to acquire the number of pulses received during the acquisition interval
(Scan Period).
• Frequency
to acquire the frequency (in Hz) of the input signal. The frequency is
calculated in the interval of acquisition (Scan Period).
Note: The pulse count is reset at the beginning of each acquisition interval (SCAN Period). To
store the total number of pulses received in N successive acquisition intervals, insert the
quantity in a store table selecting Total as value to be stored, and setting the recording
interval (STORE Period) equal to N times the acquisition interval (see paragraph 9.3 on page
89).
In the configuration, you must fill in all fields with white background. The fields in gray are not
modifiable. The following describes the fields in the window.
• NAME
Identification name of the sensor. You can assign the name, for example, of the sensor model,
or the type of measured quantity. The name should begin with a letter and can be maximum
12 alphanumeric characters long.
The name unequivocally identifies the measurement being input; you cannot assign the same
name to multiple measurements.
• UNIT (UNIT OF MEASUREMENT)
Unit of measurement of the quantity detected by the sensor. It must begin with a letter and
can be a maximum of 12 alphanumeric characters.
The unit is inserted in accordance with the values of Offset and Gain parameters (see the
corresponding point below in the paragraph for setting these parameters).
• CHANNEL PULSE
Indicates the number of the PULSE input to which the sensor must be connected. The software
automatically assigns the first free input. The number is not editable by the user. The location
of the PULSE inputs is indicated at the point 8 of the terminal board figure on page 8.
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• INPUT TYPE
Select the Digital option if the output signal of the sensor is digital, or
Analog, if it is analog.
In both cases the threshold voltages levels for the recognition of the
pulse correspond to the values of the standard TTL logic.
• OFFSET AND GAIN
The value recorded in the data logger is the result of a linear transformation applied to the
measured value.
If you select the Counts type of measurement, the formula is:
Value recorded = Offset + (Gain x Count)
If you select the Frequency type of measurement, the formula is:
Value recorded = Offset + (Gain x Frequency)
By setting Offset = 0 and Gain = 1, the recorded value is exactly the value of the count or
frequency.
Generally, the measured value corresponds to the value of a physical quantity, e.g. flow rate,
wind speed, etc. It is therefore more interesting to store directly the value of the physical
rather than the measured value. To record directly in the logger the value of the quantity it is
sufficient to enter in the fields Offset and Gain the values calculated by the following relations:
Offset =
(Gis × Vfs ) - (Gfs × Vis )
Gain =
Vfs - Vis
Gfs − Gis
Vfs - Vis
Where:
Gis = initial scale of the physical quantity
Gfs = full scale of the physical quantity
Vis = value of the count or frequency relative to the initial scale of the quantity
Vfs = value of the count or frequency relative to the full scale of the quantity
The value will be recorded in the same unit of measurement of Gis and Gfs values. This unit is
one that should be inserted in the Unit field of the configuration window.
In the Offset and Gain fields must be entered only the numerical value without unit.
Example
Suppose you need to configure a cup anemometer with frequency digital output. The
measuring range is 0 to 70 m/s. The values of the output frequency at the initial and full scale
are respectively 0 and 700 Hz.
The input is configured to measure the frequency of the signal (Frequency option).
The values needed to calculate the Offset and Gain are therefore:
Gis = 0
Gfs = 70 m/s
Vis = 0
Vfs = 700 Hz
The values of the parameters to be included in the configuration window are:
Offset =
(0 × 700) - (70 × 0) = 0
Gain =
70 - 0
In the field Unit, must be indicated m/s as unit.
-
70
-
70 − 0
= 0.1
700 - 0
9.2.5 ADDER PULSES → SWITCH CLOSURE CONFIGURATION
To set the count of the number of opening/closing of a potential-free contact, for example, the
contact of a relay, select the Adder Pulses item in the category Universal Measurements.
By pressing the Add Measure button to add the measurement, appears the dialog for selecting
the type of pulses to be counted. Select the Switch Closure option.
Press OK to confirm, so the configuration window shown below appears. In the figure there is,
for reference, also the detail of the terminal board related to the connection scheme that
appears in the window (see paragraph 5.5.2 on page 26 for details of the connections).
Selection of
Counts/Frequency
Type of
input
Name
Offset
Measure
unit
Channel Wiring
diagram
SW IN
Insulated ground
Input
SW IN 1
Gain
Input
SW IN 2
Select the option up on the left in the configuration window:
• Counts
to acquire the number of openings / closings during an acquisition interval
(Scan Period).
• Frequency
to acquire the frequency (in Hz) of the switching contact. The frequency is
calculated in the interval of acquisition (Scan Period).
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Note: The count of the opening/closing is reset at the beginning of each acquisition interval
(SCAN Period). To store the total number of openings/closures in N intervals of acquisition,
insert the measure in a store table selecting the Total option as value to be stored, and setting
the recording interval (STORE Period) equal to N times the acquisition interval (see paragraph
9.3 on page 89).
In the configuration, you must fill in all fields with white background. The fields in gray are not
modifiable. The following describes the fields in the window.
• NAME
Identification name of the sensor. You can assign as the name, for example, the model of the
sensor, or the type of measured quantity. The name must start with a letter and can be up to
12 alphanumeric characters.
The name uniquely identifies the measure that you are entering, you can not assign the same
name to several measures.
• UNIT (UNIT OF MEASUREMENT)
Unit of measurement of the quantity detected by the sensor. It must begin with a letter and
can be a maximum of 12 alphanumeric characters.
The unit is inserted in accordance with the values of Offset and Gain parameters (see the
corresponding point below in the paragraph for setting these parameters).
• CHANNEL SW IN
Indicates the number of the SW IN input to which the sensor must be connected. The software
automatically assigns the first free input. The number is not editable by the user. The SW IN
inputs arrangement is shown at point 9 of the terminal board figure on page 8.
• INPUT TYPE
The setting is fixed to Switch Closure. The maximum detectable switching frequency is 50 Hz.
• OFFSET AND GAIN
The value recorded in the data logger is the result of a linear transformation applied to the
measured value.
If you select the Counts type of measure the transformation is:
Value recorded = Offset + (Gain x Count)
If you select the Frequency type of measurement, the formula is:
Value recorded = Offset + (Gain x Frequency)
By setting Offset = 0 and Gain = 1, the recorded value is exactly the value of the count or
frequency.
Generally, the measured value corresponds to the value of a physical quantity, such as wind
speed, the amount of rain, etc. It is therefore more interesting to store directly the value of
the physical quantity rather than the measured value. To record directly in the logger the
value of the quantity it is sufficient to enter in the fields Offset and Gain the values calculated
by the following relations:
Offset =
(Gis × Vfs ) - (Gfs × Vis )
Gain =
Vfs - Vis
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Gfs − Gis
Vfs - Vis
Where:
Gis = initial scale of the physical quantity
Gfs = full scale of the physical quantity
Vis = value of the count or frequency relative to the initial scale of the quantity
Vfs = value of the count or frequency relative to the full scale of the quantity
The value will be recorded in the same unit of measurement of Gis and Gfs values. This unit is
one that should be inserted in the Unit field of the configuration window.
In the Offset and Gain fields must be entered only the numerical value without unit.
Example
Suppose you need to set up a tipping bucket rain gauge with voltage-feree ON/OFF contact
output. The resolution of this sensor is 0.2mm/switching.
The input is configured to capture the number of pulses (Counts option).
In this case, the full scale of measurement of the sensor is not a finite value, since the bucket
can switch indefinitely. For the calculation of offset and slope is therefore necessary to use,
instead of the full scale values, intermediate defined values, for example, the values
corresponding to 1 count. In the case of rain gauge, 1 count corresponds to the capacity of the
bucket at the time of switching (0.2 mm). The initial scale is equivalent to the empty bucket
and zero counts.
The values needed for the computation of Offset and Gain are therefore:
Gis = 0
Gfs = 0.2 mm
Vis = 0
Vfs = 1 count
o The values of the parameters to be inserted in the configuration window are:
Offset =
(0 × 1) - (0.2 × 0) = 0
Gain =
1-0
0.2 − 0
= 0.2
1- 0
In the Unit field, mm must be indicated as the unit.
9.2.6 INPUT CURRENT 4-20 AND 0-20mA CONFIGURATION
In the Universal Measurements category, select the Input Current 4-20 and 0-20mA item to
configure an input for current measurements.
By pressing the Add Measure button to add the measurement, the configuration window shown
below appears. In the figure there is, for reference, also the detail of the terminal board
related to the connection scheme that appears in the window (see the paragraph 5.3.2 on
page 20 for the details of the connections).
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Sensor
type
Selection
4-20/0-20 Name
Measure
unit
Channel
BIP
Wiring
diagram
Input—
channel BIP 1 (L)
Number of
differential input (BIP)
Shunt
resistance
Value at
4 or 0mA
Input +
channel BIP 1 (H)
Value at
20mA
o In the top left of the configuration window, select 4-20mA or 0-20mA depending on
the current output range of the sensor.
o Depending on the type of sensor select:
• Current Loop (Passive)
if the sensor has 2 wires with power on the same line as the
signal.
• Current Output (Active)
if the sensor has 3 or 4 wires with power supply separate from
the signal.
At the opening of the window it is selected by default the Current Loop (Passive) option.
Selecting the Output Current (Active) option, the connection scheme presented in the window
changes:
Input —
channel BIP 1 (L)
Number of
differential input (BIP)
Input +
channel BIP 1 (H)
In the configuration window, you must fill in all fields with white background. The fields in gray
are not modifiable. The following describes the fields in the window.
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• NAME
Identification name of the sensor. You can assign as the name, for example, the model of the
sensor, or the type of measured quantity. The name must start with a letter and can be up to
12 alphanumeric characters.
The name uniquely identifies the quantity that you are entering, you can not assign the same
name to several measures.
• UNIT (UNIT OF MEASUREMENT)
Unit of measurement of the quantity detected by the sensor. It must begin with a letter and
can be a maximum of 12 alphanumeric characters.
The unit is inserted in accordance with the values of parameters Equivalent to 4mA (or 0mA)
and Equivalent to 20mA (see the corresponding point below in the paragraph for setting these
parameters).
• CHANNEL BIP
It indicates the number of the analog input to which the sensor should be connected. The
software automatically assigns the first free input. The number cannot be changed by the user.
The analog inputs arrangement is shown at point 4 of the terminal board figure on page 8.
• SHUNT (SHUNT RESISTANCE VALUE)
The shunt resistor value is fixed at 100 ohms.
• EQUIVALENT TO 4mA OR 0mA AND EQUIVALENT TO 20mA
Generally, the value measured corresponds to the value of a physical quantity, such as
temperature, humidity, pressure, etc. It is therefore more interesting to store directly the
value of the physical quantity. To record the value of the quantity directly into the data logger,
simply enter in the fields Equivalent to 4mA (or 0mA) and Equivalent to 20mA the following
values::
Equivalent to 4mA (or 0mA) = initial scale of the physical quantity
Equivalent to 20mA = full scale of the physical quantity
The recorded value will use the same unit of measurements of the initial and full scale values
entered. Such unit of measurement should be entered in the Unit field of the configuration
window.
You should only enter the numeric value, without unit of measurement, in the Equivalent to
4mA (or 0mA) and Equivalent to 20mA fields.
Example
Suppose you need to configure a relative humidity transmitter with output 4 to 20mA, whose
measurement range is 0 to 100%.
The values to be entered in the Equivalent to 4mA and Equivalent to 20mA are simply:
Equivalent to 4mA = 0
Equivalent to 20mA = 100
In the Unit field, % must be indicated as unit of measurement.
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9.2.7 DIGITAL INPUT CONFIGURATION
In the Universal Measurements category, select the Digital Input item to configure an input for
the detection of TTL logic levels.
By pressing the Add Measure button to add the measurement, the configuration window shown
below appears. In the figure there is, for reference, also the detail of the terminal board
related to the connection scheme that appears in the window (see the paragraph 5.4 on
page 25 for the details of the connections).
Name
Measure
unit
Channel
I/O
Input I/O number 8
Input I/O number 1
Ground
In the configuration window, you must fill in all fields with white background. The fields in gray
are not modifiable. The following describes the fields in the window.
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• NAME
Identification name of the sensor. You can assign as the name, for example, the model of the
sensor, or the type of measured quantity. The name must start with a letter and can be up to
12 alphanumeric characters.
The name uniquely identifies the quantity that you are entering, you can not assign the same
name to several measures.
• UNIT (UNIT OF MEASUREMENT)
Unit of measurement of the quantity detected by the sensor. It must begin with a letter and
can be a maximum of 12 alphanumeric characters.
• CHANNEL I/O
Indicates the number of digital input to which the sensor must be connected. The software
automatically assigns the first free input. The number is not editable by the user. The analog
inputs arrangement is shown at point 6 of the terminal board figure on page 8.
9.2.8 U.S. ANEMOMETERS HD2003 AND U.S. ANEMOMETERS HD52.3D CONFIGURATIONS
In the Environmental Analysis category, select the U.S. Anemometers HD2003 or U.S.
Anemometers HD52.3D item to configure the RS485 serial input for the connection of an
ultrasonic anemometer Delta OHM series HD2003 or HD52.3D, respectively.
By pressing the Add Measure button to add the measure, the configuration window shown
below appears. In the figure there is, for reference, also the detail of the terminal board
related to the connection scheme that appears in the window (see the paragraph 5.6 on page
28 for the details of the connections).
Number
of meas.
Measure
unit
Model
selection
Wiring
diagram
Name
Insulated
ground
Input
—D
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Input
+D
At the top of the configuration window, select the model of anemometer to be connected.
In the configuration window, you must fill in all fields with white background. The fields in gray
are not modifiable. The following describes the fields in the window.
• QUANTITIES (NUMBER OF MEASURED QUANTITIES)
Select the number of physical quantities that you want to acquire from the anemometer. The
value can be set from 1 to 10, the value proposed by default is 5.
For models HD2003 and HD52.3D147, the order
of the first 5 quantities is fixed:
o Wind Speed
o Wind Direction
o Barometric Pressure
o Temperature
o Relative Humidity
For HD2003.1 and HD52.3D models, the first 2
quantities are fixed: wind speed and direction.
• NAME
Enter an identifying name for each of the quantities to be acquired. You can assign as the
name, for example, the type of measured quantity. The name must start with a letter and can
be up to 12 alphanumeric characters.
The name uniquely identifies the quantity that you are entering, you can not assign the same
name to several measures.
• UNIT (UNIT OF MEASUREMENT)
Select a unit of measurement for the speed of
wind among those proposed. The unit selected
must be identical to that set in the anemometer.
The unit of measurement of the other quantities
is fixed.
If there are optional variables, in addition to the
quantities set by the program, type in the
relevant unit of measurement in the Unit field (at
max. 12 alphanumeric characters starting with a
letter).
ANEMOMETER CONFIGURATION
For the proper functioning of the system, the anemometer must be pre-configured with the
following settings:
1. The order in which the anemometer sends the measures to the output must match the
one programmed into the data logger.
2. The unit of measurement of air speed set in the anemometer must match the one
programmed in the data logger.
3. Averaging period of the measures equal to 1 second.
4. RS485 communication mode.
5. Address = 1
6. Baud Rate = 115200
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9.2.9 RAIN GAUGE CONFIGURATION
To configure an input for connecting a rain gauge with a voltage-free ON/OFF contact output,
select Rain Gauges inside the category Environmental Analysis.
Press the Add Measure button to add the measurement and this opens the configuration
window shown below. In the figure there is, for reference, also the detail of the terminal board
related to the connection scheme that appears in the window (please see the paragraph 5.5.2
on page 26 for the details of the connections).
Name
Measure
unit
Unit of measurement of
bucket resolution
Channel
SW IN
Wiring
diagram
Insulated
ground
Input
SW IN 1
Quantity of rain per
tipping
Input
SW IN 2
In the configuration window, you must fill in all fields with white background. The fields in gray
are not modifiable. The following describes the fields in the window.
• NAME
Identification name of the sensor. You can assign as the name, for example, the model of the
sensor, or the type of measured quantity. The name must start with a letter and can be up to
12 alphanumeric characters.
The name uniquely identifies the quantity that you are entering, you can not assign the same
name to several measures.
• UNIT (UNIT OF MEASUREMENT)
Select the desired unit of measurement for the amount of rain
between mm and inch.
• CHANNEL SW IN
Indicates the number of the SW IN input to which the sensor must be connected. The software
automatically assigns the first free input. The number is not editable by the user. The location
of the SW IN inputs is indicated at point 9 of the terminal board figure on page 8.
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• RESOLUTION (UNIT OF MEASUREMENT OF RESOLUTION)
In the field should be selected the unit of measurement of the
resolution printed in the rain gauge data sheet. The selectable
settings are mm/Tip and inch/Tip.
• RAINFALL/TIP (QUANTITY OF RAIN PER TIPPING)
Enter the resolution value reported in the technical data sheet of the rain gauge. The value is
the amount of rain that causes the switching of the tipping bucket. Must be inserted only the
numerical value without unit.
9.2.10 RADIOMETRY CONFIGURATION
To configure an input for connecting a solar radiation sensor with voltage output, select
Radiometry item inside the Environmental Analysis category.
By pressing the Add Measure button to add the measurement, the window for selecting the
connection type appears.
Select Single Ended option if you are planning a single-ended connection (measuring signal
connected between a single-ended input and the analog ground) or Differential option if you
plan to connect the sensor in differential mode (measuring signal connected between two
analog inputs). The differential mode is recommended for sensors with mV output, so as to
reduce the influence of noise on the measurement signal. For sensors with normalized voltage
output, the single-ended connection is sufficient.
Press OK to confirm, so the configuration window shown below appears. In the figure there is,
for reference, also the detail of the terminal board related to the connection scheme that
appears in the window (see the paragraph 5.3.1 on page 17 for the details of the connections).
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WINDOW WITH SINGLE ENDED OPTION
Name
Measure Channel
unit
UNI
Measurement
range
Input +
channel UNI 2 (L)
Number of
single-ended
channel (UNI)
WINDOW WITH DIFFERENTIAL OPTION
Wiring
diagram
Name
Measure
unit
Measurement
range
Sensitivity
Channel
BIP
Wiring
diagram
Sensitivity
Input —
channel BIP 1 (L)
GND
Input +
channel UNI 1 (H)
Number of
differential
channel (BIP)
Input +
channel BIP 1 (H)
In the configuration window, you must fill in all fields with white background. The fields in gray
are not modifiable. The following describes the fields in the window.
• NAME
Identification name of the sensor. You can assign as the name, for example, the model of the
sensor, or the type of magnitude being measured. The name must start with a letter and can
be up to 12 alphanumeric characters.
The name uniquely identifies the measure that you are entering, you can not assign the same
name to several measures.
• FLUX DENSITY UNIT (UNIT OF MEASUREMENT)
Select the unit of measurement of the quantity measured by the
sensor. There are two possible options: kLux and W/m2 (W/m2).
• CHANNEL UNI OR CHANNEL BIP
Indicates the number of analog input to which the sensor must be connected. The software
automatically assigns the first free input. The number is not editable by the user. The location
of the analog inputs is shown at point 4 of the terminal board figure on page 8.
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• RANGE
It is the measuring range of the data logger input. Click on the Range
field and then select a measuring range suitable for the sensor that is
being inserted, so that the voltage sensor output is within the
measurement range selected. There are four selectable ranges:
o
±25mV
o
±100mV
o
±1000mV
o
±2500mV
To get the best resolution of measurement it is convenient to choose the first measurement
range higher than the output of the sensor.
If the sensor output is too high to fall within the ranges available, it is necessary to reduce the
signal by inserting a resistive divider between the output of the sensor and the data logger
input (see paragraph 5.3.1 on page 17 for the connection).
Partition
ratio
To data logger
input
From sensor
output
The sum of the values of R1 and R2 must be greater than the minimum load resistance of the
sensor.
Only as an example, the table below shows the range selectable and the need of divider for
different voltage outputs that are typically available in Delta ohm sensors with normalized
voltage output.
Sensor
Output
Resistive
Divider
Selectable
Range (*)
0 ÷ 1V
±1000mV or ±2500mV
No
0 ÷ 5V
±1000mV or ±2500mV
Yes, partition ratio 1/5
0 ÷ 10V
±1000mV or ±2500mV
Yes, partition ratio 1/10
1 ÷ 5V
±1000mV or ±2500mV
Yes, partition ratio 1/5
2 ÷ 10V
±1000mV or ±2500mV
Yes, partition ratio 1/10
(*)
Note: Some sensors can provide an output voltage that exceeds the nominal value of the
scale, if the measured quantity exceeds the range measured. If you want that error condition
is also recorded by the logger, you must set a value in the Range field higher than the nominal
range of the sensor. For example, for a sensor with a nominal 0-1V output we have to select
the range ±2500mV, not the ±1000mV range.
For sensors with not normalized mV output, the maximum output voltage is obtained by
multiplying the sensitivity of the sensor by the full scale value of the measured quantity.
• SENSITIVITY
In this field, the value of the sensitivity of the sensor must be inserted. The entered value
must be expressed in mV/(kW m-2) or mV/klux depending on the type of quantity
measured by the sensor. If the sensitivity is known in a different unit, you must convert in the
units above. Must be inserted only the numerical value without unit.
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For sensors with direct mV output, the sensitivity is usually stated by the manufacturer and is
also indicated on the housing of the sensor.
For sensors with normalized voltage output, the sensitivity should be calculated by dividing the
output voltage range by the measurement range of the physical quantity.
Example 1
Suppose you need to set up a pyranometer with normalized 0 to 10V voltage output and
measurement range 0 to 2000 W/m2. Between the transmitter and data logger it is inserted a
resistive divider with a partition ratio of 1 / 10.
The configuration values of the logger input are:
Flux Density Unit = W/m2
Range = ±1000mV.
Sensitivity = 10 / 2000 = 0.005 V/(W m-2) = 5000 mV/(kW m-2). The value to be entered is 5000.
Example 2
Suppose you need to configure a pyranometer with mV output and measurement range 0 to
2000 W/m2. The sensitivity is declared 10µV/(Wm-2). The transmitter output is connected
directly to the data logger input (resistive dividers are not present).
The maximum voltage that can be generated from the sensor is equal to the sensitivity
multiplied by the full scale of the measured quantity: 10 x 2000 = 20.000 µV = 20 mV.
The configuration values of the of the logger input are:
Flux Density Unit = W/m2
Range = ±25mV.
Sensitivity = 10µV/(Wm-2) = 10 mV/(kW m-2). The value to be entered is 10.
9.2.11 Pt100-Pt1000 THERMOMETERS CONFIGURATION
To configure an input for connecting a 4-wire Pt100 or Pt1000 temperature probe with
coefficient α = 0.00385 (IEC 751), select the Pt100-Pt1000 Thermometers item in the Industry
category.
By pressing the Add Measure button to add the measurement, the configuration window shown
below appears. In the figure there is, for reference, also the detail of the terminal board
related to the connection scheme that appears in the window (see the paragraph 5.3.5 on
page 23 for the details of the connections).
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Selection
of sensor
Name
Measure Channel
unit
BIP
Wiring
diagram
Input —
channel BIP 1 (L)
Number of
differential
input (BIP)
Measurement
range
GND
Excitation
voltage
(Exc)
Input +
channel BIP 1 (H)
Maximum
temperature
In the top left of the configuration window, select Pt100 or Pt1000 according to the type of
sensor used.
In the configuration window, you must fill in all fields with white background. The fields in gray
are not modifiable. The following describes the fields in the window.
• NAME
Identification name of the sensor. You can assign as the name, for example, the model of the
sensor, or the type of measured quantity. The name must start with a letter and can be up to
12 alphanumeric characters.
The name uniquely identifies the measure that you are entering, you can not assign the same
name to several measures.
• TEMPERATURE (TEMPERATURE UNIT OF MEASUREMENT)
Select the desired unit of measurement among: deg C (Celsius degrees),
deg F (Fahrenheit degrees) and deg K (Kelvin degrees).
The data logger computes, using the coefficient α = 0.00385, the value of
temperature corresponding to the measured resistance value, and directly
records the temperature value in the chosen unit of measurement.
• CHANNEL BIP,EXC
It Indicates the number of analog input to which the sensor must be connected. The software
automatically assigns the first free input. The number is not editable by the user. The location
of the analog inputs is shown at point 4 of the terminal board figure on page 8.
• RANGE
Select the desired measuring range. The options presented depend on the type of sensor.
For sensor type Pt100 select:
o ±100mV for temperature measurements up to 370°C
o ±1000mV for temperature measurements up to 850°C
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For sensors type Pt1000 select:
o ±1000mV for temperature measurements up to 370°C
o ±2500mV for temperature measurements up to 850°C
If you plan to measure temperatures not higher than 370°C it is
convenient to choose the lower range because it allows better
measurement resolution.
• MAX TEMP °C (MAXIMUM TEMPERATURE IN °C)
It is the maximum temperature that can be measured with the current setting in the Range
field. The value cannot be changed directly but it is calculated automatically according to the
option selected in the Range field.
9.2.12 THERMOCOUPLES CONFIGURATION
To configure an input to connect a thermocouple temperature probe, select the Thermocouples
item in the Industry category.
By pressing the Add Measure button to add the measurement, the configuration window shown
below will appear. In the figure is shown, as a reference, also the detail of the terminal board
concerning the wiring diagram appearing on the window (see the paragraph 5.3.6 on page 24
for the details of the connections).
Type
selection
Name
Measure
unit
Wiring
diagram
Channel
BIP
Input —
channel BIP 1 (L)
Number of
differential
input (BIP)
Position of
cold junction
Measurement
range
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Input +
channel BIP 1 (H)
In the configuration window, you must fill in all fields with white background. The fields in gray
are not modifiable. The following describes the fields in the window.
• TYPE (TYPE OF THERMOCOUPLE)
In the Type field select the type of thermocouple to be connected to the
data logger. You can connect thermocouples type K, J, T, N, R, S, B, E.
• NAME
Identification name of the sensor. You can assign as the name, for example, the model of the
sensor, or the type of quantity measured. The name must start with a letter and can be up to
12 alphanumeric characters.
The name uniquely identifies the measure that you are entering, you can not assign the same
name to several measures.
• TEMPERATURE (UNIT OF TEMPERATURE MEASUREMENT)
Select the desired unit of measurement among: deg C (Celsius degrees),
deg F (Fahrenheit degrees) and deg K (Kelvin degrees).
The data logger calculates the temperature corresponding to the value of
the input voltage in mV, and directly stores the value of temperature in
the selected unit of measurement.
• CHANNEL BIP
Indicates the number of analog input to which the sensor must be connected. The software
automatically assigns the first free input. The number is not editable by the user. The analog
inputs arrangement is shown at point 4 of the terminal board figure on page 8.
• REFERENCE JUNCTION (COLD JUNCTION)
The field is fixed to the value Internal. The cold junction is located at the connection point of
the thermocouple to the data logger and the junction temperature is measured by a
temperature sensor inside the logger. Do not connect external temperature sensors for cold
junction compensation
• TEMP RANGE °C (TEMPERATURE RANGE IN °C)
It indicates the temperature measurement range with thermocouple type selected. The value
that appears is set automatically depending on the option selected in the Type field. The
correspondence between the type of thermocouple and the measured field is shown in the
table below:
Type of thermocouple
Measurement range
K
-200…+550 °C
J
-210…+420 °C
T
-200…+400 °C
N
-200…+660 °C
R
-50…+1760 °C
S
-50…+1760 °C
B
+250…+1820 °C
E
-200…+330 °C
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9.2.13 NTC THERMISTOR CONFIGURATION
To configure an input for connecting an NTC thermistor temperature probe, select the NTC
Thermistors item in the Industry category.
Press the Add Measure button to add the measurement and this opens the configuration shown
below. In the figure is shown, as a reference, also the detail of the terminal board concerning
the wiring diagram appearing on the window (see the paragraphs 5.3.3 on page 22 for the
details of the connections).
Name
Measure
unit
Channel
UNI
Terminal Excitation
(E)
voltage
Wiring
diagram
Input +
channel UNI 2 (L)
Input +
channel UNI 1 (H)
BETA
GND
Excitation
voltage
(Exc)
Number of
single-ended
channel
(UNI)
Measurable
values
In the configuration window, you must fill in all fields with white background. The fields in gray
are not modifiable. The following describes the fields in the window.
• NAME
Identification name of the sensor. You can assign as the name, for example, the model of the
sensor, or the type of measured quantity. The name must start with a letter and can be up to
12 alphanumeric characters.
The name uniquely identifies the measure that you are entering, you can not assign the same
name to several measures.
• TEMPERATURE (UNIT OF TEMPERATURE MEASUREMENT)
Select the desired unit of measurement among: deg C (Celsius degrees),
deg F (Fahrenheit degrees) and deg K (Kelvin degrees).
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The data logger calculates the temperature corresponding to the resistance value measured as
a function of the value inserted in the BETA field, and directly store the value of temperature in
the chosen unit of measurement.
• CHANNEL UNI
It Indicates the number of analog input to which the sensor must be connected. The software
automatically assigns the first free input. The number is not editable by the user. The analog
inputs arrangement is shown at point 4 of the terminal board figure on page 8.
The programmable inputs for this type of measurement are only the single-ended
inputs 1, 2, 3 and 4.
• CHANNEL EXC (EXCITATION TERMINAL)
Indicates the number of the terminal E from where the excitation voltage must be taken,
which is the terminal where you must connect one end of the reference resistor Rf. The
number is assigned automatically and is not editable by the user.
• VEXC (EXCITATION VOLTAGE)
It is the excitation voltage applied to terminal E. The value is fixed at 2500 mV.
• BETA (CONSTANT OF THE MATERIAL)
Write in this field the value of the coefficient BETA (β) reported in the sensor specifications.
• NTC/Rf RANGE
It is the measuring range of sensor resistance value compared to the reference resistance Rf.
The field can not be set. The minimum and maximum values measurable are respectively:
NTCmin = Rf / 1000
NTCmax = 100 x Rf
The value of Rf to be connected is the thermistor resistance value at 25°C.
The reference resistor Rf must be a precision resistor and sufficiently stable over time and
exposure to environmental conditions, since the drift of the Rf values results in a measurement
change not due to a real variation in temperature.
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9.2.14 ERROR MESSAGES WHILE SETTING THE PARAMETERS
If the parameters are not correctly set in the configuration window, you can get the following
error messages.
•
The name and Unit fields are required!
Cause: The name or the unit of measurement field is not filled in.
•
There is just an equivalent Name !
Cause: it has already been previously entered a sensor with the same name. You must
change the name.
Note: the software does not distinguish between uppercase and lowercase letters (for
example the name TC_K is assumed to be the same as tc_K).
Gain must be not zero !
•
Cause: Gain field was not filled in or has been put to zero.
•
The Sensitivity must be positive !
Cause: the Sensitivity field of the Radiometry configuration has not been filled in or has
been set to zero or negative value.
Rainfall/Tip must be positive !
•
Cause: the Rainfall/Tip field of the Rain Gauge configuration has not been filled in or has
been set to zero or negative value.
•
BETA must be positive !
Cause: the BETA field of the NTC Thermistors configuration has not been filled in or has
been set to zero or negative value.
9.3
CREATING THE STORE TABLES
After you define the list of measures (MEASURE List) and the acquisition interval (SCAN
Period), you must determine which measures should be stored in the data logger and when.
It is important to note that in the the data logger the process of measures acquisition is
distinct from the process of measures recording. The definition of the list of measures and
acquisition interval does not involve the automatic storage of acquired data. To store a
measurement it is necessary to insert it into a store table.
A program can consist of one or more strore tables. The use of multiple tables allows to store
the various measures at different intervals.
To define the first store table, proceed as follows:
1. In the left panel of the program window, select the folder Table n.1, by clicking on the
relevant label.
Note: the folder is selectable only if the MEASURE List includes at least one sensor.
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2. In the left pane appears an empty table. To insert a measure, select it from the list in the
right pane of the window (MEASURE List) and click on the Add Store button with the blue
arrow at the centre of the window.
3. The window for selecting the type of value to be stored appears. Select the desired
option from the following:
o OneSample
stores the last instant value acquired.
o Average
stores the average of the values acquired between two successive
recording instants.
o Max
stores the maximum of the values acquired between two successive
recording instants.
o Min
stores the minimum of the values acquired between two successive
recording instants.
o Total
stores the sum of the values acquired between two successive recording
instants. It is used in case of pulse inputs to store the total number of
pulses counted.
o StDeviation
stores the standard deviation of the values acquired between two
successive recording instants.
o Alarms
stores the alarm condition of the measurement.
Depending on the type of measurement, some of the options might be disabled if they are not
significant for the measure. The Alarms button is disabled if the table already contains a type
of storage different from the alarm condition (please see paragraph 9.3.1 on page 93 for the
creation of the alarms table).
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4. After choosing the type of value to be stored, the measure is added to the store table,
and above the table appears the recording interval (Store Period). Write the desired
interval. If necessary, select minutes (minutes) or seconds (seconds) as unit of
measurement for the interval.
The recording interval (Store period) must meet the following conditions:
o Be between 2 and 60 seconds or between 1 and 1440 minutes (24 hours).
o Be equal to or multiple of the acquisition interval (Scan Period).
Scan Period
Store Period
If you set a recording interval that is not a multiple of the acquisition interval, an error
message appears: Store Period must be multiple of Scan Period!. In this case, press OK
and set a correct interval value.
The recording interval is associated with the table that is being defined and it is common
to all measures in the table. Each table has its own recording interval that can be the
same or different compared to other tables that may be present.
5. Proceed according to steps 2 and 3 to add further measures to the store table.
Note: the type of stored value (OneSample, Average, etc.) may be different from measure to
measure. In addition, the same measure can be added multiple times to the same table with
different types of value to be stored.
To remove a measure from a store table, select it and press Remove store.
If you want to store some of the measures at different intervals than others, you can split the
measures into multiple tables, setting the required interval for each table.
The same measure may also appear in multiple tables.
If there are many measures to be stored with the same interval, for your convenience you can
also divide them into multiple tables by setting the same recording interval for the various
tables.
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To create further tables after the first one, select the New Table button at the bottom left. This
opens an empty table (with a sequential number following the last created table) in which you
can enter the measurements you want.
The program can contain up to 8 store tables.
To delete the last created table, select the Delete Table button below the table, then press Yes
when the message asking you to confirm the operation appears.
You can only delete the table with the highest sequential number among those present. You
can not delete the table number 1, even if empty.
WARNING MESSAGES
During the insertion of the measures in the store tables, the following messages may appear:
•
Scan Period too short !
The message appears when the number of measurements becomes too high to be able to
acquire all the measures between two successive acquisition instants. The measure that
you are trying to enter will not be added to the table. Press OK to return to the program
window. To insert additional measures it is necessary to increase the acquisition interval in
the Scan Period field.
•
Total Store Data over 30 reached !
The message appears when you try to insert a measure, but there are already 30
measures present.
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9.3.1 ALARMS TABLE
To create a table of alarms, select an empty table, then add the measurements you want by
choosing the Alarms option.
Selecting the Alarms option, a window appears that allows you to set the values of the two
alarm thresholds and the associated alarm outputs to be activated. The alarm condition occurs
if the value falls below the lower threshold or rises above the upper threshold.
Lower
threshold
Higher
threshold
Lower threshold
alarm output
Higher threshold
alarm output
Enabling SMS
SMS sending
interval
The alarm outputs are independent for the two thresholds. As alarm outputs you can use the
digital I/O ports, by selecting the Ch IO option, or the potential-free contact alarm outputs,
selecting the Ch ALARM option. The output number, shown to the left of the option is assigned
automatically by the software, it is not allowed the manual setting. If you do not want to
assign an alarm output, select the NO Out option. If you do not select any output option, the
software automatically assigns the NO Out option.
Each alarm output is related to a single threshold. It is not allowed to assign the same output
to two different thresholds, even if they related to the same measure.
Alarm conditions are always all stored according to the set recording interval for the table,
regardless of the assignment or not of corresponding outputs.
If the data logger is connected to a GSM device, when an alarm condition occurrs, the data
logger can send an alert SMS. To enable the sending of SMS messages you must apply the
check mark in the Enable SMS option. In the Repeat field, set the time interval between the
sending of successive alarm SMS, in the case the alarm condition persists over time.
After an alarm condition has occurred and the corresponding message has been sent, no
further SMS will be sent until the set Repeat interval has elapsed, even if other alarm
conditions occur. If at the time to send the SMS alert more of an alarm condition is present, it
is sent only the SMS corresponding to the alarm condition that occurred first.
If at the expiration of the Repeat interval the alarm condition is no longer present, the SMS is
not sent.
The setting of the Enable SMS option and Repeat interval is unique for all measures, and
corresponds to the setting for the last measurement included in the list of alarms. The SMS
alert is available only for the first 16 measures of the table.
For the setting of SMS text and phone numbers to which they should be sent, refer to the
manual of the HD32MTLogger application software.
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Alarm conditions to be stored must all be entered in the same table. Tables dedicated to the
storage of measured values can not contain storing of alarm conditions. If a table already
includes the storage of a measured value, the Alarms button is disabled when adding other
measures to the table. Similarly, if the table stores alarm conditions, it can not contain
recordings of measured values. If a table already contains the storage of an alarm condition,
only the Alarms button is enabled when adding other recordings to the table.
Note: SMS messages are not sent if the logger is connected to the PC and there is an ongoing
communication session.
To the alarm thresholds it is applied an hysteresis of ±1% of set value. The difference between
the two thresholds can not be less than 2% of the value of the lower threshold.
9.3.2 CAPACITY OF THE INTERNAL MEMORY
The HD32MTLogger software calculates the time needed to fill the data logger internal memory
as a function of the set recording intervals and the number of tables and measures to store.
The time is calculated when you press the Create button to save the program file, or the Print
button to print the wiring diagram or the store tables. The time is displayed in the lower right
side of the program window and is estimated in days.
The internal memory is managed in a circular manner, when the memory is full, the new data
will overwrite the oldest.
Note: you can extend the memory capacity and prevent loss of data using a removable SD
type memory card (up to 2 GB). See chapter 10 on page 101 on how to use the card.
For the programmer can be useful to estimate in advance, even before beginning to prepare
the program, how much data can be stored in the internal memory and for how long, so to
evaluate how many and which sensors to use in the system. The following describes how to
obtain the estimated number of recordings possible.
The data logger has an internal memory of 4MB. Storing a single data, whether the value of a
measurement or the date or time of storage, requires 4 bytes. It is therefore possible to store
1MB of data.
For a table containing N measurements, each store requires (N+2) data, namely the N
measures plus the date and time of storage.
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PROGRAM WITH ONE STORE TABLE
If the program has only one table, the internal memory will fill up after a MEM number of
recordings equal to:
MEM =
1MB
N+2
If T is the recording interval of the table, the memory will be filled after the time:
MEM x T
Example
Suppose that the data logger program has only one table with 8 measures and recording
interval of 30 seconds.
The number of recordings possible before you fill the internal memory is:
MEM =
1MB
≈ 100,000
8+2
The time required to fill the memory is ≈ 100,000 x 30 seconds ≈ 35 days.
PROGRAM WITH TWO STORE TABLES
If the program has two tables you need to consider the difference between the two recording
intervals.
Let's say N1,T1 and N2,T2 are the number of measures and the recording interval of the first
and second table respectively. The number of recordings MEM1 and MEM2 of the two tables
needed to fill the memory is given by:
MEM1 =
1MB
⎡ T1
⎤
N1 + 2 + ⎢
× (N2 + 2)⎥
T
2
⎣
⎦
MEM2 =
1MB
⎡ T2
⎤
N2 + 2 + ⎢
× (N1 + 2)⎥
T
1
⎣
⎦
The memory will fill up after the time: MEM1 x T1 = MEM2 x T2
Example
Suppose the data logger program has two store tables. The first with N1=6 measurements and
interval T1=1 minute, the second with N2=2 measurements and interval T2=2 minutes.
The number of records to fill the internal memory is:
MEM1 =
1MB
≈ 100,000
⎡1
⎤
6 + 2 + ⎢ × (2 + 2)⎥
⎣2
⎦
MEM2 =
1MB
≈ 50,000
⎡2
⎤
2 + 2 + ⎢ × (6 + 2)⎥
⎣1
⎦
The internal memory will contain MEM1+MEM2 ≈ 150,000 records.
The time required to fill the memory is ≈ 50,000 x 2 minutes ≈ 70 days.
PROGRAM WITH MULTIPLE STORE TABLES
In general, if a program has k tables, before filling the memory, the i-th table will be recorded
for a number of times equal to:
MEMi =
1MB
⎡ Ti
⎤ ⎡ Ti
⎤
⎡ Ti
⎤
⎢ T1 × (N1 + 2)⎥ + ⎢ T 2 × (N2 + 2)⎥ + ..... + ⎢ Tk × (Nk + 2)⎥
⎣
⎦ ⎣
⎦
⎣
⎦
with i=1,2,…..,k
The time needed to fill the memory is: MEMi x Ti and the memory will contain a number of
records equal to MEM1+MEM2+…..+MEMk.
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9.4
SAVING THE PROGRAM IN THE PC
After you define the list of sensors (MEASURE List) and the STORE Tables, with its acquisition
(Scan Period) and recording (Store Period) intervals, you must save to your PC the file of the
program of measures and recordings, for subsequent installation in the data logger.
1. Press Create to save the program and generate the file needed by the data logger.
The window that allows you to specify the file name and path where to save it to your PC
appears. After saving, a summary report is displayed, press OK to return to the program
window.
2. Verify that the time (in days) needed to fill the data logger internal memory, displayed in
the lower right side of the program window is sufficient for your application.
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3. Select Print to print the wiring diagram and/or the store tables.
Then select Print Wiring Diagram to print the wiring diagram or Print Tables Store to print
the store tables. Press OK.
4. Press Exit to close the program window.
With the Create button, the program is saved in multiple versions with the same name but
different extension. In particular, it generates a file with extension " ini " and a file with
extension " img ". The file with extension "img" contains the program in a format readable by
the data logger, and is therefore the file to be installed later in the data logger. The file with
extension " ini " contains the program in text format, and is the file that is opened by the
HD32MTLogger software when you have to make changes to the program.
To save the program without generating the file to install in the data logger, for example
because you have not yet completed it, select the Exit button directly instead of Create. The
software will ask the name and location to save the file, and only the " ini " format will be
saved.
If you want to change a previously saved program, before installing it in the data logger, select
the Program Setup command in the main window of HD32MTLogger software, then choose
OPEN Program, select the program previously saved (file with extension " ini " ) and press
Open.
Note: If you select Create with blank store tables, a warning message appears: No STORE
Tables or empty Tables, confirm creating ?. If you proceed, the file for the logger is created
anyway, but the program will only make the measurements without saving them.
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9.5
INSTALLING THE PROGRAM IN THE DATA LOGGER
To make the program operational you need to install it into the data logger.
Warning: the installation of a program in the data logger erases all measurements
recorded in the internal memory. So as not to permanently loose the data recorded in the
internal memory, you should transfer them to the PC using the “Dump LOG” command of the
HD32MTLogger software, before beginning the program installation. The measurements stored
in the removable SD memory card, if any, will remain recorded.
To install the program in the data logger, proceed as follows:
1. Power up the logger and connect it to your PC directly or via radio modem by following
the instructions in chapter 6 on page 36.
2. In the Tool menu, select the Serial Connection item.
3. In the Connection Properties window, apply the check mark next to the Radio Modem
entry for the model with Radio Modem option. For the base model, make sure the check
mark is not present, possibly by clicking on the box next to the entry to deselect it.
Model with Radio Modem option
Basic model
Check
No check
Select the COM port number of the PC which is connected to the instrument or radio
modem, then click Apply to return to the main window.
If the COM port number is not known, leave the setting unchanged and press Apply to
exit, the program will automatically search for an instrument connected to the available
ports on your PC, starting from the set one.
Note: the remaining communication parameters are fixed, the difference between the
two models of data loggers is the data transfer rate (bits per second): 38400 for the
model with radio modems and 115200 for the base model.
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4. Press the Connect icon in the toolbar.
5. If the connection is successfully established, the software reads the data logger program
installed and then displays the DataLogger Information, which are listed in the order:
data logger model, serial number, firmware version, the name of the program installed in
the data logger, the measurements acquisition interval (Scan period) and the number of
store tables (STORE Tables).
Press OK to return to the software main window.
Note: if you attempt a connection while the logger is recording data in the SD memory
card, you receive a warning message (SD Card Running). In this case, wait a few
minutes and try to press the Connect icon again.
Note: if the logger has no program installed, the message Absent or UnHook! appears
when connecting, to remember the need to install a program. Ignore it and continue with
the installation.
If you experience connection errors, follow the instructions of paragraph 9.5.1 on page
100.
6. Select the Send Program icon.
7. In the window that opens, select the name of the previously saved program (with
extension "img") and press Open.
A message appears to remind you that the stored data will be lost. Press Yes to continue.
8. Wait until the program is installed in the data logger (a progress bar indicates the
installation status).
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If the installation is completed successfully, the DataLogger Information window is
displayed again. Click OK to exit. The program installed starts automatically to operate in
the data logger, acquiring and storing the programmed measurements.
Note: the program already existing in the data logger is cleared at the beginning of the
installation of the new program. If error messages appear during installation and the
installation process is interrupted, the data logger is left without a working program. In
this case you must repeat the installation procedure.
9. To end the communication session between the PC and data logger, select the Disconnect
icon.
9.5.1
ERROR MESSAGES DURING CONNECTION
If the connection fails, the message HD32MT Not Found! appears. In this case, check the
following points:
• In the connection properties, check that the correct data logger model was set (option with
or without Radio Modem) and that the COM port to which the data logger is connected is
selected.
• Check the PC connections are correct according to the instructions in chapter 6 on page 36.
• To connect via radio modem, check that the antennas are not positioned too far away from
each other and that there are no obstacles that can limit the transmission equipments
range.
If the connection is successfully established initially, but then of interruption occurs, the
following messages may appear:
• TIMEOUT CMD OVER 7 Attempts! (Command times out after 7 attempts)
• No Answer after CMD! (No response after the command)
• ERROR: communication at … block (Communication error at the block….)
• HD32MT Not Connected or Program Error!
In these cases retry the connection, possibly checking the status of the electrical connections.
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10 MEMORY CARD
The data logger is equipped with a reader for removable SD memory card, located at the top
of the instrument (point 12 of the figure on page 8).
You can use memory cards up to a capacity of 2 GB.
The use of a memory card allows you to greatly increase the capacity of the data logger to
store data, avoiding a possible loss of data due to the filling of internal memory.
To use a memory card it is sufficient to insert it the appropriate slot (push the card until a click
is heard, which guarantees the correct insertion). The logger automatically detects the
presence of the card and will use it to store measurements.
Memory card
When a card is inserted, the data logger verifies that it is writeable. During verification, the
LED next to the card turns red. Make sure that after a few seconds from the card insertion the
LED turns green. If the LED does not become green after inserting the card, but emits red
flashes, verify the correct insertion of the card and replace it if necessary.
Unlike the internal memory in which data are written at each recording interval, data in the
memory card are written once every hour (the writing begins exactly on the hour: at 1:00,
2:00, etc..). The memory card will then contain hourly files, each of which contains all the
measurements stored by the data logger in one hour (or more hours if you have set the file
appending option for GSM transmission, see the HD32MTLogger software instructions for the
appending functionality).
Since the internal memory fills up normally in a period greater than one hour, the hourly
transfer of the measures in the memory card allows to store data in an almost permanent way
(at least until the memory card capacity is reached).
The measures contained in different store tables are saved in separate files. Each hour as
many files as the number of store tables in the data logger program are created. The file
names are formed by the table number to which they refer followed by a sequential number.
When writing files on the memory card, the LED located next to the card turns red, indicating
that the write operation is in progress. Do not remove the memory card when the LED is red,
to avoid damage to the contents of the card. The card can be removed when the LED is green.
Note: if the memory card is not inserted, the LED will emits five red flashes every hour,
indicating the absence of the card.
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The files on the card can be transferred to a PC equipped with an SD memory card reader. To
transfer files, remove the card from its slot (push the card firmly until you hear a click and
then release it), and insert it into your PC.
The HD32MTLogger software has a special feature called Merge Files, which lets you combine
multiple files related to the same store table into one file. To use this function, please refer to
the software manual.
Note: when writing in the card, the logger can not connect to the PC. If you try to connect
while writing, you will receive the SD Card RUNNING message. In this case, wait for the write
process to be completed before retrying the connection.
If the data logger is equipped with a GSM module, the use of the memory card is required to
transmit data via the GSM device, since the data transmitted are those that are stored in the
card.
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11 LED SIGNALS
The LED next to the SD memory card provides various signals to indicate the status of the data
logger or any abnormalities that may occur. The following table summarizes the meaning of
the signals.
LED Signal
Meaning
ON red fixed
Writing in the memory card in progress
2s ON red / 2s OFF
Detected hardware problems at startup
1s ON red / 1s OFF
Detected problems in the operation program loaded
1 quick red blink once per second, OFF
the rest of the time
Low consumption mode due to supply voltage drops
below 11.7V
5 blinks 1s ON red/ 1s ON green
The SD memory card is not inserted. The flashes are
emitted at startup or when trying to access the card.
10 blinks 0.5s ON red / 0.5s ON green
The SD memory card is inserted but it was not
possible to access it at the time of writing
1 quick red blink on startup and then
green fixed
Data logger basic model detected
1 long red blink of 5s on startup and
then green fixed
Data logger
detected
10 quick double red blinks on startup
Waiting time for stabilization of the +Vsw supply
output
20 quick double red blinks
Exit low power mode and return to normal operation
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model
with
Radio
Modem
option
12 LITHIUM BATTERY REPLACEMENT
The data logger has an internal lithium battery that allows operation of the clock of the
instrument even without external power.
When the data logger is powered externally, the internal battery is not used, in order to
preserve the charge and prolong its life.
If the internal battery is discharged, the logger clock continues to operate normally until the
external power supply is present, if that fails, the current date and time are lost and need to
be reprogrammed.
Should it be necessary to replace the internal battery, proceed as follows:
1. Disconnect the external power supply of the data logger.
2. Unscrew the four screws that secure the two side covers of the housing, then remove the
two lids.
3. The battery is located on the underside of the board, on the side of the ground knob. Push
the circuit board to the bottom of the housing, pushing close to the two connectors on the
sides, so as to remove the card from the top panel.
Knob
Battery
Connector
4. Pull the board out and replace the battery with another of the same type (CR2032),
observing the correct polarity (the positive of the battery is facing out of the battery
holder).
5. Reinsert the board and connect it to the top panel, making sure that both connectors are
correctly aligned. Replace the two side covers and secure with the four screws.
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13 MOUNTING THE DATA LOGGER
The data logger can be attached to a panel by means of two rear supports. The figure below
shows the size in mm for fixing.
Supports for
mounting
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14 INSTRUMENT STORAGE
Instrument storage conditions:
•
Temperature: -25…+65°C.
•
Humidity: less than 90% RH, without condensation.
•
During storage avoid locations where:
•
humidity is high;
•
the instrument may be exposed to direct sunlight;
•
the instrument may be exposed to a high temperature source;
•
the instrument may be exposed to strong vibrations;
•
the instrument may be exposed to steam, salt or any corrosive gas.
15 SAFETY INSTRUCTIONS
General safety instructions
This instrument has been manufactured and tested in compliance with safety standards
EN61010-1 relating to electronic measuring instruments and left the factory in perfect
technical condition of safety.
The regular functioning and operational safety of the instrument can only be guaranteed if all
normal safety measures are observed as well as those specific described in this operating
manual.
The regular functioning and operational safety of the instrument can only be guaranteed under
the climatic conditions specified in the manual.
Do not use the instrument in places where they are present:
•
•
•
•
Quick environment temperature changes that could cause condensation.
Corrosive or inflammable gases.
Direct vibrations or shocks.
High intensity electromagnetic fields or static electricity.
If the instrument was transported from a cold to a warm place or vice versa, the formation of
condensation can disturb its operation. In this case wait for the temperature of the instrument
to reach room temperature before putting it into service.
User obligations
The instrument user must ensure that the following standards and guidelines for treatment of
hazardous materials are followed:
•
•
•
CEE directives on job safety
National laws on job safety
Accident prevention regulations
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16 ORDER CODES
HD32MT.1
Data logger supplied with: HD32MTLogger software for programming, data
downloading, monitoring and data processing on a PC, operating manual.
The probes, cables and the GSM module must be ordered separately.
The radio modem option should be requested at time of ordering, the
radio modem modules with the antennas must be ordered separately.
ACCESSORIES
9CPRS232
Null modem cable with 9-pin Sub-D female connector on both sides for
connection to the PC RS232C.
C205
Connection cable with USB connector on PC side and sub-D 9-pole female
connector on instrument side. The cable has a built-in RS232/USB converter
and connects the data logger directly to the USB port of the PC.
HD32.35
Outdoor housing complete with acquisition system for weather stations.
Material: AISI 304 stainless steel. Screen to protect the housing from solar
radiation. Powder-coated white. Double locking one of which is a key.
Dimensions 450 x 300 x 210 mm. Degree of protection IP66. Supplied with
accessories for attachment to the pole diameter 36 ÷ 52 mm. Provided for
100 ÷ 240Vac mains power supply, includes: HD32MT.1 datalogger, AC/DC
power supply unit with integrated battery charger, 12V rechargeable backup
battery, surge protectors, disconnectors, terminal block for power supply
distribution and connectors for connecting the external sensors.
HD32.35FP
Outdoor housing complete with acquisition system for weather stations.
Material: AISI 304 stainless steel. Screen to protect the housing from solar
radiation. Powder-coated white. Double locking one of which is a key.
Dimensions 450 x 300 x 210 mm. Degree of protection IP66. Supplied with
accessories for attachment to the pole diameter 36 ÷ 52 mm. Provided for
power supply from solar panel, includes: HD32MT.1 datalogger, solar charge
controller, terminal block for power supply distribution and connectors for
connecting the external sensors.
HD32.36
Outdoor housing complete with acquisition system for weather stations.
Material: Polyester with fiberglass-reinforced hot-pressed. Screen to
protect the housing from solar radiation, powder-coated anodized aluminum.
White. Key lock. Dimensions 415 x 310 x 170 mm. Degree of protection IP66.
Supplied with accessories for attachment to the stainless steel pole diameter
36 ÷ 52 mm. Provided for 100 ÷ 240Vac mains power supply, includes:
HD32MT.1 datalogger, AC/DC power supply unit with integrated battery
charger, 12V rechargeable backup battery, surge protectors, disconnectors,
terminal block for power supply distribution and connectors for connecting the
external sensors.
HD32.36FP
Outdoor housing complete with acquisition system for weather stations.
Material: Polyester with fiberglass-reinforced hot-pressed. Screen to
protect the housing from solar radiation, powder-coated anodized aluminum.
White. Key lock. Dimensions 415 x 310 x 170 mm. Degree of protection IP66.
Supplied with accessories for attachment to the stainless steel pole diameter
36 ÷ 52 mm. Provided for power supply from solar panel, includes: HD32MT.1
datalogger, solar charge controller, terminal block for power supply distribution
and connectors for connecting the external sensors.
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TP32MT.1P
4-wire 1/3 DIN Pt100 temperature probe, Ø 4mm, L=150mm, pointed, 5m
cable, isolated sensor. Temperature range -40…+100°C.
TP32MT.2
4-wire 1/3 DIN Pt100 temperature probe, Ø 6mm, L=150mm, 5m cable,
isolated sensor. Temperature range -40…+100°C.
TP32MT.11P
T type thermocouple temperature probe, Ø 4mm, L=150mm, pointed, 5m
cable, isolated. Temperature range -40…+100°C.
TP32MT.12
T type thermocouple temperature probe, Ø 4mm, L=300mm, 5m cable,
isolated. Temperature range -40…+100°C.
HD4V8T Baro Wall-mount barometric transmitter for indoor use. Output 0…10Vdc.
HD53GSM
Quad-band wireless GSM/GPRS module, including whip antenna and RS232
serial port.
HDRMO169
VHF radio modem module pair, frequency 169MHz, including whip antenna and
RS232 serial port. Already configured for connection to the logger and the PC
(the two modules are not interchangeable). The modules only work with the
version of the data logger with radio modem option.
HD2004.20
Tripod kit for installing anemometers on a flat base. Material: anodized
aluminum. Height 3m.
HD2004.22
1200x530x34mm solar panel mounting kit to a Ø 40÷50mm mast. AISI 304
stainless steel.
For the full range of Delta Ohm sensors and probes, please visit website www.deltaohm.com.
DELTA OHM metrology laboratories are accredited by ACCREDIA for Temperature, Humidity,
Pressure, Photometry / Radiometry, Acoustics and Air Velocity. The probes, on request, can be
supplied with calibration certificate.
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CERTIFICATO DI CONFORMITÀ DEL COSTRUTTORE
MANUFACTURER’S CERTIFICATE OF CONFORMITY
rilasciato da
issued by
DELTA OHM SRL
DATA
DATE
STRUMENTI DI MISURA/MEASURING INSTRUMENTS
2011/05/16
Si certifica che gli strumenti sotto riportati hanno superato positivamente tutti i test di
produzione e sono conformi alle specifiche, valide alla data del test, riportate nella
documentazione tecnica.
We certify that below mentioned instruments have been tested and passed all production tests,
confirming compliance with the manufacturer's published specification at the date of the test.
La riferibilità delle misure ai campioni internazionali e nazionali è garantita da una catena
di riferibilità che ha origine dalla taratura dei campioni di prima linea dei laboratori
accreditati di Delta OHM presso l’Istituto Primario Nazionale di Ricerca Metrologica.
The traceability of measures assigned to international and national reference samples is
guaranteed by a reference chain which source is the calibration of Delta OHM accredited
laboratories reference samples at the Primary National Metrological Research Institute.
Tipo Prodotto:
Product Type:
Data logger programmabile
Programmable Data logger
Nome Prodotto:
Product Name:
HD32MT.1
DELTA OHM SRL
35030 Caselle di Selvazzano (PD) Italy
Via Marconi, 5
Tel. +39.0498977150 r.a. - Fax +39.049635596
Cod. Fisc./P.Iva IT03363960281 - N.Mecc. PD044279
R.E.A. 306030 - ISC. Reg. Soc. 68037/1998
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GUARANTEE
TERMS OF GUARANTEE
All DELTA OHM instruments are subject to accurate testing, and are guaranteed for 24 months from the
date of purchase. DELTA OHM will repair or replace free of charge the parts that, within the warranty
period, shall be deemed non efficient according to its own judgement. Complete replacement is excluded
and no damage claims are accepted. The DELTA OHM guarantee only covers instrument repair. The
guarantee is void in case of incidental breakage during transport, negligence, misuse, connection to a
different voltage than that required for the appliance by the operator. Finally, a product repaired or
tampered by unauthorized third parties is excluded from the guarantee. The instrument shall be returned
FREE OF SHIPMENT CHARGES to your dealer. The Italia Law and the jurisdiction of Padua, Italy, applies
in any dispute.
The electrical and electronic equipment marked with this symbol cannot be disposed of in public
landfills. According to the UE Directive 2002/96/EC, the European users of electrical and
electronic equipment can return it to the dealer or manufacturer upon purchase of a new one.
The illegal disposal of electrical and electronic equipment is punished with an administrative
fine.
This guarantee must be sent together with the instrument to our service centre.
IMPORTANT: Guarantee is valid only if coupon has been correctly filled in all details.
Instrument Code
HD32MT.1
Serial Number
RENEWALS
Date
Date
Inspector
Inspector
Date
Date
Inspector
Inspector
Date
Date
Inspector
Inspector
CE CONFORMITY
The product complies with 2004/108/CE (EMC) and 2006/95/CE (low voltage) directives,
and meets the requirements of the following technical standards:
Safety
Electrostatic discharge immunity test
Radiated, radio-frequency, electromagnetic field immunity
Electrical fast transient/burst immunity
Immunity to conducted disturbances, induced by RF fields
Voltage dips, short interruptions and voltage variations immunity
Radio disturbance characteristics (conducted and radiated emissions)
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110
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EN61010-1
EN61000-4-2 Level 3
EN61000-4-3 Level 3
EN61000-4-4 Level 3
EN61000-4-6
EN61000-4-11
EN55022:2007 class B
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