OTR D3200PRO Manual de usuario

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

USE AND MAINTENANCE MANUAL

Datalogger D3200PRO

PAGINA 01

Numero 019b

Rev. 02 del 07/07/2022

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

USE AND MAINTENANCE MANUAL

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

PAGINA 02

STRUMENTI E MISURE GEOTECNICHE

E STRUTTURALI

INDEX

Warnings

Applications

Model and ID

Sensor connection

Sensor properties

Calculation of battery life

Battery datalogger telephone module

Software conventions

Troubleshooting

GSM and Solar Panel

Installation and maintenance

Technical Features

Quick Installation

Using main controls

PAGINA 03DATALOGGER D3200PRO

Numero 019b

Rev. 02 del 07/07/2022

Numero 019b

Rev. 02 del 07/07/2022

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

USE AND MAINTENANCE MANUAL

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

PAGINA 04

Datalogger D3200PRO WARNINGS

The instrument should be used only for the application for which it was

built and designed, OTR disclaims any responsibility for improper use

of the instrumentation.

Use only the power supply and cables provided;

Do not use the datalogger in the presence of potentially explosive

gases;

Do not connect the datalogger to instrumentation placed in waters

where electrical leakage is occurring;

• Do not open the instrument: contact the manufacturer for any repairs;

• Keep out of the reach of children;

• Do not make instrument connections with wet or damp hands;

• When charging, do not connect the datalogger to the probe or personal

computer via USB;

• Clean the instrument and its cable with alcohol or water; Do not use

acetone or aggressive liquids for plastics or labels;

Furthermore

Use protective gloves when using the measuring cable. Avoid handling

the cable quickly without gloves.

PAGINA 05

DATALOGGER D3200PRO

Numero 019b

Rev. 02 del 07/07/2022

Numero 019b

Rev. 02 del 07/07/2022

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

USE AND MAINTENANCE MANUAL

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

PAGE 06 PAGE 07

The 32 channel Dataloggers in the D3200PRO series are suitable for monitoring in

Geotechnical, Structural and Environmental fields with mV or mA output sensors.

The following instruments can be acquired:

• Electric piezometers

• Surface clinometers

• Crackmeters and joint gauges

• Temperature sensors

• Conductivity meters.

Application Model and Identification

Each Datalogger has nameplates bearing:

• Serial number with associated calibration report;

• Model indication;

• Indication of power supply;

• Input/Output

Technical Specification

0-2V 4-20 mA

+15V , 2.048 Vref

6V dc

Inputs

Outputs

Power Supply

DATALOGGER D3200PRO

Numero 019b

Rev. 02 del 07/07/2022

Numero 019b

Rev. 02 del 07/07/2022

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

USE AND MAINTENANCE MANUAL

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

PAGE 08 PAGE 09

Connecting sensors

Vibrating rope version

Refer to the figure contained on page 11 to connect the vibrating rope sensors.

The figure represents the datalogger’s multiplexer board.

Before connecting the sensors to the datalogger, it is a good idea to previously

check that they are working and properly wired upstream. For this it would be

useful to have a handy hand reader with you to check the transducers before

final wiring.

Connect the first vibrating cord sensor into the white-colored quadruple

terminal indicated by CH0. The first (from the top) screw terminal should be

connected to the positive pole of the sensor coil (COIL+) normally indicated with

the color RED. The second terminal should be connected to the negative (COIL -)

pole of the coil normally indicated with the color BLACK.

The OG3200PRO datalogger is capable of reading sensors with resonance

frequency above 501 Hz. The universal sweep requires no software setting, and

the data output is directly in Hz or Hz squared. For use with self-oscillating or

different frequency sensors, consult OTR directly.

Terminals 3 and 4 should be connected to the thermistor associated with the

sensor (normally color 3 to GREEN and 4 to WHITE).

The standard of thermistors read by the OG3200PRO datalogger is NTC 3Kohm.

If the thermistor is not of this type wire it and then proceed with the software

to read and record in Ohms. From these derive the data in degrees using the

corresponding formulas for the NTC or PTC sensors used.

Repeat the operation with the next sensors, taking care to connect the quad

clamps sequentially one after the other (if an empty quad terminal is left

between two wired with sensors it too will be unnecessarily read and recorded).

Check that the screw terminals are tight and that the wires are not shorted.

After all sensors are wired, proceed with a continuous measurement to check

that the whole operation was successful.

DATALOGGER D3200PRO

mV or 4-20mA version

To connect sensors with mV or 4-20 mA output, refer to the figure contained on

page 24. The figure represents the datalogger’s multiplexer board.

Before connecting the sensors to the datalogger, it is a good idea to previously

check that they are working and properly wired upstream. For this it would be

useful to have a handy hand reader with you to check the transducers before

final wiring.

To connect sensors with mV output, locate the sensor power cable and connect

it to the first slot (from the top) of the quad terminal. Wire the sensor ground

(GND) wire to the second slot and finally the signal wire to the third slot. If the

sensor is biaxial (ex: inclinometer) connect its second output to the third slot of

the next quad terminal, taking care to return the power supply to the latter (so a

loop must be made between the first slot of the quad terminal ex: X and the first

slot of the next quad terminal ex: Y). In this way, the biaxial sensor is properly

connected and powered. Check that the black 4-20 mA selection jumper is

disconnected. The voltages read by the datalogger range from - 4,000 to +

4,000 Vdc. Higher or lower values will be reported as Full Scale and will not be

read correctly.

To connect sensors with two-wire 4-20 mA output, locate the power cable

(LOOP+) and the signal cable (LOOP-). Wire the LOOP+ cable to the first slot of

the quad terminal and the LOOP- cable to the third. Check that the black 4-20

mA selection jumper is connected.

For connecting sensors with 4-20 mA three-wire output, locate the power cable

(LOOP+), signal cable (LOOP-) and ground cable (GND). Wire the LOOP+ cable

to the first slot of the quad terminal, the GND cable to the second and finally

the LOOP- cable to the third. Check that the black 4-20 mA selection jumper is

connected.

Check that the screw terminals are tight and that the wires are not shorted.

After all the sensors have been wired, proceed with a continuous measurement

to check that the whole operation was successful.

For sensors with mV output, it is essential that the 100-ohm load resistor be

disconnected by removing the black jumper. Incorrect use of this jumper results

in unexpected low signal values

For sensors with mA output, it is essential that the 100 Ohm load resistor is

connected by inserting the corresponding black jumper. Incorrect use of this

jumper results in full-scale values. Correct use gives values of 0.400 volts

for 4 mA and 2,000 volts for 20 mA found between slot 2 and slot 3 of the

corresponding quad terminal.

The datalogger is capable in all cases of reading currents between - 40,000 and

+ 40,000 mA, and the instructions for 4-20 mA sensors also apply to 0-20 mA

sensors.

Numero 019b

Rev. 02 del 07/07/2022

Numero 019b

Rev. 02 del 07/07/2022

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

USE AND MAINTENANCE MANUAL

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

PAGE 10 PAGE 11

The screen allows access to the datalogger’s clock parameters and acquisition

enablement.

The Read Date and Write Date buttons allow the user to update the date entered

in the datalogger on the screen and to edit the date within it if necessary,

respectively. Editing is done by selecting the relevant data boxes and then

pressing the write button.

At the bottom is a check that indicates whether the datalogger is enabled for

conversion or not. If the check is selected the datalogger acquires at each

conversion time starting when the program is closed or the cable is disconnected.

If the check is not selected the datalogger is in stand-by and does not acquire. Its

consumption in this state is about 200 µA.

Data Mood

With these options you set the acquisition times of the datalogger. Times

below one minute cannot be set, and if channel scanning exceeds this time it is

automatically delayed. For the version with GSM the acquisition times cannot be

less than 10 minutes.

Also in the screen is the setting of pre-start times that control how long the

datalogger waits before taking a sensor reading. For the vibrating string version,

the preignition time is meaningless.

Timers

In this screen you can manage the quantity of channels connected to the

datalogger. The two buttons Read and Write are used to control these parameters.

For each MUX, 0 to 16 active channels can be set. When changing these values,

the software asks for confirmation because the memory is reset if the channel

configuration is changed. This is necessary for internal dislocation of data in

the datalogger. Therefore, before adding or removing channels remember to

download the data.

If the value of channels is set to 0 the corresponding MUX is ignored and the

memory possibility is increased as follows:

1 MUX 4000 data

2 MUX 2000 data

3 or 4 MUX 1000 data

The Clear Data Memory button allows the datalogger’s memory buffer to be

completely cleared.

The Reset Datalogger Completely button, on the other hand, allows the datalogger

to be returned to its first power-up state. However, this operation results in the

loss of all data and also all configurations and should only be used if strictly

necessary.

Channel Managing

mV/mA version

The properties of the various sensors are accessed with the appropriate button.

Each sensor is identified by a number ranging from 0 to 15 and its MUX number

ranging from 0 to 3.

For each sensor, a name and four numeric configuration parameters can be set,

allowing for a given output in any physical format.

The reference formula is as follows:

( )

Z_FZ_F-F_F

Z_V-F_V

Z_V-In

Out +











×













Out = output value

In = input value in tenths of millivolts

Z_V = zero in tenths of millivolts

F_V = Full scale in tenths of millivolts

F_F = Full scale in physical units

Z_F = Zero physical units

Actually, the formula is very simple and does not require any special calculations.

It is sufficient to take two points on the characteristic curve of the sensor and

proceed as follows:

Properties of sensors

PAGINA 11

PAGINA 10

Wiring

Numero 019b

Rev. 02 del 07/07/2022

Numero 019b

Rev. 02 del 07/07/2022

DATALOGGER D3200PRO

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

USE AND MAINTENANCE MANUAL

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

PAGE 12 PAGE 13

The transducer has an output of 4 mA at 0 mm and 20 mA at 100 mm therefore:

At 4 mA the Zero value in tenths of millivolts corresponds to 4000 and at 20 mA

the Full scale value in tenths of millivolts corresponds to 20000.

The four values are then:

Zero_Volts = 4000

Fs_Volts = 20000

Zero_Physical = 0

Fs_Physical = 100

The output is thus in mm. If you want to have it in cm simply put

Fs_Physical = 10

4-20 mA potentiometric

transducer -100 mm

Inclinometer with output +/- 2 volts

around 2.5 volts and FS=+/- 30°

The transducer has a nominal zero at 2.5 V corresponding to 25000 tenths of a

millivolt.

Zero_Volt = 25000

The value indicated by the transducer at this position is nominally 0°

Zero_Physical = 0

At full scale, the transducer has an output of 4.5 volts corresponding to 45000

tenths of a millivolt.

Fs_Volt=45000

At this position the inclination is equal to +30°

Fs_Physical = 30

Here are found the four parameters for having an output in degrees (of course the

software also leaves a reasonable number of floating-point digits).

Piezometric transducer

4-20mA 20m water

Il trasduttore ha un’uscita di 4 mA a 0 m e quindi di 20 mA a 20 m:

A 4 mA il valore di zero in decimi di millivolt corrisponde a 4000 e a 20 mA il valore

di fondo scala in decimi di millivolt corrisponde a 20000.

I quattro valori sono quindi:

Zero_Volts = 4000

Fs_Volts = 20000

Zero_Fisico = 0

Fs_Fisico = 20

L’uscita è quindi in m. Se si desidera averla in cm basta mettere

Fs_Fisico = 2000

Barometer with output in volts

The transducer in example has an output of 0.1V at 15KPa and 2.35V at 115KPa:

At 15Kpa the value in tenths of mV is therefore 1000 while at 115Kpa it is 23500.

The four values are therefore:

Zero_Volt = 1000

Fs_Volt = 23500

Zero_Physical = 15

Fs_Physical = 115

The output is thus in KPa.

Example of data file

The data downloaded from the datalogger are easy to interpret and collect all

information regarding the sensors and their properties.

If immediate visualization of the data is desired, simply select the ‘Create Table ‘

option before downloading.

An example file of the ASCII file created is shown.

The file shows the date of download the various sensor information and the data

neatly separated by commas.

DATALOGGER D3200PRO

Numero 019b

Rev. 02 del 07/07/2022

Numero 019b

Rev. 02 del 07/07/2022

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

USE AND MAINTENANCE MANUAL

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

PAGE 14 PAGINA 15

Importing data into Microsoft Excel

Open Microsoft Excel.

Open the file created by D3200PRO as a text file (.TXT).

Start importing from the row where the data begins.

Select the data as comma delimited.

Finish the import.

DATA ACQ.: 06/01/2005 17.55.37,Numero Canali Attivi: 3 ,Numero Dati per

Canale: 234

CANALE: 00 Y 25000 45000 0 2000

CANALE: 01 X 25000 45000 0 2000

CANALE: 02 T 5000 10000 0 50

05/01/2005 14.01.26 ,-710.8 ,228.8 ,17.96

05/01/2005 14.03.48 ,-711.8 ,228.4 ,17.56

05/01/2005 14.05.48 ,-712.0 ,228.4 ,17.26

05/01/2005 14.07.48 ,-711.4 ,229.4 ,16.94

05/01/2005 14.09.48 ,-711.2 ,229.4 ,16.72

05/01/2005 14.11.48 ,-711.0 ,229.6 ,16.48

05/01/2005 14.13.48 ,-710.8 ,230.0 ,16.26

05/01/2005 14.15.48 ,-711.6 ,229.4 ,16.04

05/01/2005 14.17.48 ,-711.0 ,229.8 ,15.84

05/01/2005 14.19.48 ,-712.0 ,229.6 ,15.64

05/01/2005 14.21.48 ,-711.8 ,229.8 ,15.48

05/01/2005 14.23.48 ,-711.6 ,230.0 ,15.32

05/01/2005 14.25.48 ,-711.2 ,230.4 ,15.24

05/01/2005 14.27.48 ,-711.8 ,230.0 ,15.12

05/01/2005 14.29.48 ,-711.4 ,230.6 ,15.04

05/01/2005 14.31.48 ,-712.0 ,230.2 ,14.92

05/01/2005 14.33.48 ,-711.6 ,230.8 ,14.86

05/01/2005 14.35.48 ,-711.4 ,230.8 ,14.78

05/01/2005 14.37.48 ,-712.0 ,230.4 ,14.68

05/01/2005 14.39.48 ,-711.8 ,231.0 ,14.6

05/01/2005 14.41.48 ,-712.2 ,230.4 ,14.5

05/01/2005 14.43.48 ,-711.8 ,231.2 ,14.44

05/01/2005 14.45.48 ,-712.2 ,231.0 ,14.38

05/01/2005 14.47.48 ,-712.2 ,230.8 ,14.3

05/01/2005 14.49.48 ,-712.0 ,231.4 ,14.24

05/01/2005 14.51.48 ,-712.2 ,230.8 ,14.16

05/01/2005 14.53.48 ,-711.4 ,231.4 ,14.08

05/01/2005 14.55.48 ,-712.2 ,230.8 ,14.0

05/01/2005 14.57.48 ,-712.4 ,231.0 ,13.92

05/01/2005 14.59.48 ,-712.0 ,230.8 ,13.88

05/01/2005 15.01.48 ,-712.4 ,231.0 ,13.8

05/01/2005 15.03.48 ,-712.2 ,231.0 ,13.76

Calculation of Battery Autonomy

Il consumo in stand by del datalogger è di circa 200 µA.

Il consumo in pieno utilizzo (durante la misura) si aggira intorno ai

100 mA.

Approssimatamente il tempo di acquisizione per canale può essere

considerato 4 sec a cui va sommato un tempo di 10 sec ad ogni

accensione.

Partendo da questi due dati è possibili con semplici calcoli calcolare

in modo ragionevole la durata prevista delle batterie.

Esempio di calcolo:

Condizioni: Batterie Torcia 15 A/h, 4 acquisizioni al giorno, 16 sensori

collegati

Daily consumption:











+

××+× 3600

3600

416

mA100424uA200

giornoalA0.00130A0.0082A0.0048 =+

Duration =













0130.0

=1154 Days

Even dividing the result by a safety factor of 3 gives a range of about 1

year.

Conditions: 15 A/h ashlight batteries, 96 acquisitions per day, 2 sen-

sors connected

Daily consumption:











+

××+× 3600

3600

mA1009624uA200

0.0048 A + 0.048 = 0.0528 Daily

Duration =













0528.0

=284 Days

µA 24 mA 16 10

µA 24 96 mA 10

Even dividing the result by a safety factor of 3 gives a range of about 3 months.

DATALOGGER D3200PRO

The standby consumption of the data logger is about 200 µA.

The consumption in full use (during measurement) is around 100 mA.

Approximately the acquisition time per channel can be considered 4 sec to which

should be added a time of 10 sec at each power-up.

Starting from these two data, it is possible with simple calculations to reasonably

calculate the expected battery life.

Example calculation:

Conditions: 15 A/h flashlight batteries, 4 acquisitions per day, 16 sensors

connected

Numero 019b

Rev. 02 del 07/07/2022

Numero 019b

Rev. 02 del 07/07/2022

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

USE AND MAINTENANCE MANUAL

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

PAGE 16 PAGE 17

Battery Datalogger phone module

If the datalogger supplied has the telephone module, a solar panel or battery

charger is also provided. The phone consumes approximately 30 mA and the

battery/panel system is sized according to the area and conditions of use.

If sizing is correct and external factors (snow on the panel, leaves etc. etc.) do not

intervene, however, the life of rechargeable batteries should be considered to be

about a couple of years due to aging factors and loss of storage capacity.

Where possible and reasonably safe, it is advisable to use solar panels and

rechargeable batteries that isolate the datalogger in every way from unwanted

external disturbances.

Replacing Flashlight Batteries

Use model LR20 SIZE D alkaline flashlight batteries. Be careful that the batteries

do not release acid.

Battery Replacement

Replacement of Batteries with

sealed lead-acid

Use 6Vdc 12Ah sealed lead acid batteries after proper and sufficient charging.

Software Conventions

Per il corretto utilizzo del software OG3200PRO devono essere controllate alcuni

parametri di Windows nel pannello di controllo.

Entrare in start e successivamente in opzioni internazionali e numeri.

Il simbolo di separazione decimale deve essere “ . ” ed il simbolo di raggruppamento

cifre “ ’ ”.

Se queste convenzioni non vengono rispettate il programma non riceve i dati dal

datalogger in modo corretto.

Serial connection and USB adapters

The OG3200PRO datalogger uses a standard 3-wire + 1-wire RS232 serial

connection for awakening from the standby state. It is therefore necessary to have

a full serial. The OG3200PRO version that is not GSM-ready has a 57600,n,8,1

protocol the GSM-ready version 9600,n,8,1.

Common USB/Serial adapters are perfect for connection with the OG3200PRO

datalogger. In case of using adapter, the supplied connection cable is not necessary

either. The connection can be made in a direct way.

DATALOGGER D3200PRO

Numero 019b

Rev. 02 del 07/07/2022

Numero 019b

Rev. 02 del 07/07/2022

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

USE AND MAINTENANCE MANUAL

O.T.R. s.r.l. Via Btg. Susa 36 29122 Piacenza +39 0523 594290

www.otr-geo.it info@otr-geo.it P.IVA 00894610153

PAGE 18 PAGE 19

Troubleshooting

• Check that the selected serial is correct

• Check that the cable is properly connected

• Check the integrity of the connecting cable

• Check the status of the batteries

• Remember that the GSM version needs the appropriate check selected in the

initial window.

Datalogger does not connect

• Check that the conversion enable check is active

• Check that there is still free memory

• Check that the datalogger’s internal date and time are correct.

Datalogger does not record

measurements

• Check for correct wiring

• Check for the presence of moisture

• Check international settings and setting of sensor parameters

• Check the status of the batteries

• Remember that for biaxial sensors it is necessary to report + power on each

quad terminal used for them.

The measurements do not seem

correct

• Check that the PC in use has no other programs running.

Downloading data is difficult and

time-consuming

GSM and Solar Panel

To connect to the GSM modem, simply use the cable supplied with the phone and

plug it into the appropriate connector.

Remember that for local connection it is necessary to disconnect the GSM serial

socket in order not to have two devices on the same line.

The OG3200PRO with the GSM phone works at 9600 baud so for local connection

you must use the ‘GSM Version’ option in the initial screen of the software.

Upon connection the GSM modem will start flashing in the presence of the field.

Remember to use prepaid or non-prepaid cards enabled for incoming traffic.

It is necessary that the card inserted in the GSM is unlocked i.e. with PIN request

disabled.

GSM modem connection

Also supplied with the GSM version is a 10W solar panel, a 12/18 Vin, 7.2 Vout

panel charger, a 6V-12 A/h sealed lead-acid battery with very high range.

Do not use the battery charger with panels with power higher than 15W.

Do not use different panel chargers (standards are 12 Vdc Out).

Caution in full charge the charger radiator can reach up to 70°C.

Using the solar panel

DATALOGGER D3200PRO

Numero 019b

Rev. 02 del 07/07/2022

Numero 019b

Rev. 02 del 07/07/2022

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