NKE SAMBAT User manual

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USER MANUAL

SAMBAT

Vers 3

Référence du / Document reference : SAMBAT-60-07-456_UTI_UK.doc

Document applicable to the product(s): SAMBAT station and profiler

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PAGE 2/43

CONTENTS

1. INTRODUCTION................................................................................................................................................................4

2. PHOTOS...............................................................................................................................................................................5

2.1 GPS/GPRS AERIAL ........................................................................................................................................................6

3. CHARACTERISTICS OF MEASUREMENT..................................................................................................................7

3.1 DEPTH (CHANNEL 0).......................................................................................................................................................7

3.2 TEMPERATURE (CHANNEL 1) ..........................................................................................................................................7

3.3 CONDUCTIVITY (CHANNEL 2) .........................................................................................................................................7

3.4 TURBIDITY (CHANNEL 3) ................................................................................................................................................7

3.5 DISSOLVED OXYGEN (CHANNEL 4) .................................................................................................................................8

3.5.1 Choix de la mesure...........................................................................................................................................8

3.5.2 Oxygen saturation measurement setting...........................................................................................................8

3.5.3 Oxygen concentration measurement setting.....................................................................................................9

3.5.4 Oxygen sensor temperature measurement setting ............................................................................................9

3.5.5 Concentration...................................................................................................................................................9

3.6 PH (CHANNEL 5)...........................................................................................................................................................10

3.7 FLUORESCENCE (CHLOROPHYLL A OR PHYCOCYANINE)(CHANNEL 6).........................................................................10

3.7.1 Chlorophylle...................................................................................................................................................10

3.7.2 (PHYCOCIANINE).........................................................................................................................................10

3.8 BATTERY VOLTAGE (CHANNEL 5, 6OR 7) (AS PER CONFIGURATION)............................................................................11

4. OPERATION......................................................................................................................................................................12

4.1 START/STOP MODES................................................................................................................................................12

4.2 MEASUREMENT CYCLE AND GPRS TRANSMISSION.............................................................................................12

4.3 RADIO ...........................................................................................................................................................................13

4.4 GPS ..............................................................................................................................................................................13

4.5 BRUSH...........................................................................................................................................................................13

4.6 SAMBAT “GPRS” TAB ..............................................................................................................................................14

4.6.1 GPRS..............................................................................................................................................................14

4.7SAMBAT “ALARMS” TAB........................................................................................................................................15

4.7.1 Alarms allocated to channels .........................................................................................................................15

4.7.2 Brush alarms ..................................................................................................................................................16

4.7.3 GPS alarms.....................................................................................................................................................16

5. CONFIGURATION PROCEDURE FOR A SAMBAT PROBE...................................................................................17

6. BRUSH FUNCTION..........................................................................................................................................................20

6.1 THE BRUSH: START..................................................................................................................................................21

6.2 THE BRUSH: BRUSH ALARM DETECTION...........................................................................................................21

6.2.1 The various types of alarms............................................................................................................................21

6.2.2 Replacing the brush........................................................................................................................................22

7. GPS OPERATION.............................................................................................................................................................23

7.1 MANAGEMENT OF ALARMS AND CONSIDERATION OF TIDAL RANGE............................................................23

7.2 GPS INSTALLATION PRECAUTIONS.....................................................................................................................23

8. FILE FORMATS................................................................................................................................................................25

8.1 MEASUREMENT FILES....................................................................................................................................................25

8.1.1 Example of a MEASUREMENT file: SAMBAT_mesures_50000_020913112341.txt.....................................26

8.2 ALARMS FILE ................................................................................................................................................................27

8.3 BRUSH ALARMS FILE .....................................................................................................................................................28

8.4 GPS POSITION FILE........................................................................................................................................................28

8.4.1 Example of a GPS log file: gps_SAMBAT_50000_020913145451.txt ...........................................................29

8.4.2 GPS alarm file................................................................................................................................................29

9. ADJUSTMENT & MAINTENANCE PROCEDURES ..................................................................................................30

9.1 PRESSURE SENSOR.........................................................................................................................................................30

9.1.1 Depth zero drift correction.............................................................................................................................30

9.2 CONDUCTIVITY /TEMPERATURE SENSOR ......................................................................................................................31

9.2.1 Storage:..........................................................................................................................................................31

9.2.2 Cleaning the sensor back from the field before calibration ...........................................................................32

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9.2.3 Routine cleaning.............................................................................................................................................32

9.2.4 Adjustment Temperature ................................................................................................................................32

9.2.5 Adjustment conductivity..................................................................................................................................33

9.3 CAPTEUR CYCLOPS 7TURNER DESIGNS (TBD,FLUO &PHYCOCYANINE)..................................................................34

9.3.1 Adjustment using standard solutions..............................................................................................................35

9.3.2 Procedure.......................................................................................................................................................35

9.3.3 In situ adjustment ...........................................................................................................................................37

9.4 OXYGEN SENSOR.....................................................................................................................................................38

9.4.1 Cleaning .........................................................................................................................................................38

9.1 PH SENSOR.................................................................................................................................................................39

9.1.1 Maintenance...................................................................................................................................................39

9.1.1 Storage ...........................................................................................................................................................39

9.1.2 Calibration .....................................................................................................................................................39

10. CHARACTERISTICS ...................................................................................................................................................40

10.1 CARACTERISTIQUES FONCTIONNELLES ..................................................................................................................40

10.2 MECHANICAL CHARACTERISTICS ......................................................................................................................40

10.3 RADIO LINK SPECIFICATIONS...............................................................................................................................40

10.4 MEMORY AUTONOMY............................................................................................................................................40

10.5 ENERGY AUTONOMY..............................................................................................................................................40

10.5.1 SAMBAT C/T/D/TBD/DO...............................................................................................................................40

10.5.2 Influence of GPS on consumption ..................................................................................................................41

11. REPLACING THE BATTERY PACKS......................................................................................................................42

12. ANNEX 1: GPS/GPRS AERIAL COAXIAL CONNECTOR....................................................................................43

13. END OF LIFE.................................................................................................................................................................43

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1. INTRODUCTION

The SAMBAT is an autonomous multiparameter probe with brush and

teletransmission.

It is used to measure the main physical parameters of water (i.e. temperature, depth,

conductivity, turbidity, fluorescence, dissolved oxygen and pH) over a period of up to

several months.

This device uses a brush to protect the fluorescence and turbidity sensors from

biofouling.

The data measured can be transmitted by email using the integrated GPRS Modem.

The SAMBAT is configured using the Winmemo II software via a radio link (Data

Pencil Radio) with a range of several tens of meters.

The SAMBAT has been designed to be mounted on any type of support (very light

buoy, post, pontoon, etc.).

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2. PHOTOS

Battery compartment

Aerial connector

Electronic compartment

Sensors & Brush housing

Maintenance zone

Brush body

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2.1 GPS/GPRS AERIAL

The aerial is fitted with a watertight locking sleeve.

Make sure you strictly follow the locking and unlocking procedure described in the annex on page 43.

GPRS aerial

GPS aerial

Aerial connector

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3. CHARACTERISTICS OF MEASUREMENT

3.1 DEPTH (CHANNEL 0)

Unit: For the calculation of salinity, the calibration values of the channel 0 must represent the physical values of

the depth or the pressure expressed in meters or dbar.

Sensor:Piezoresistive pressure sensor

Measurement range: 0 to 10 m

Accuracy: < 0.3% of full range, being 0,03 m.

Resolution: < 0.00025 m

Measurement range: 0 to 30 m

Accuracy: < 0.5% of full range, being 0,15 m.

Resolution: < 0.00075 m

Measurement range: 0 to 50 m

Accuracy: < 0.8% of full range, being 0,40 m.

Resolution: < 0.00125 m

Note that the calibration of the pressure channel is performed at the average atmospheric pressure 1 013 mbar (or

760 mm Hg)

3.2 TEMPERATURE (CHANNEL 1)

Sensor: thermistor

Measurement range: -5°C/+35°C.

Maximum resolution: 0.5m°C at 0°C, 1m°C at 10°C, 1.5m°C at 20°C, 3m°C at 35°C

Accuracy: < 50m°C in the 0°C/25°C range.

Response time: < 2s at 63%

3.3 CONDUCTIVITY (CHANNEL 2)

Unit The text of the field Unit of the channel 2 is only configured for informational purposes and is not taken into

account when calculating the physical value (Example: mS).

Response time: < 0.5s

Range: The conductivity measurement range can be configured, in the factory, to one of the 3 ranges below:

Measurement range (mS/cm)

Resolution (µS/cm)

Accuracy (µS/com)

0 –70

< 1.2

< 50

0 –2

< 0.04

< 20

3.4 SALINITY

Unit: The text of the field Unit of the channel 2 is only configured for informational purposes and is not taken into

account when calculating the physical value (Example: g / l or PSU).

Measurement range (PSU)

Resolution (PSU)

Accuracy (PSU)

2 –42

< 0.001

< 0.1

3.5 TURBIDITY (CHANNEL 3)

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Sensor: Turner Designs CYCLOPS-7 (See product datasheet in the annex)

Wavelength: IR (850 nm)

Range: the turbidity measurement range can be configured, in the factory, to one of the 3 ranges below:

Measurement range:

Resolution:

Linearity

0 –30

0.0015 ntu

0.99 r2

0 –300

0.015 ntu

0 –1000 (up to 3000 ntu)

0.05 ntu

The measurement of turbidity sensor is linear from 0 to 1000 NTU (Linearity 0.99 R²).

She gets up to 3000 ntu (2nd order polynomial).

The probe is adjusted from solutions Formazine. These standard solutions are prepared not volumetric

dilution of a stock solution of 4000 ntu with deionized water.

MES custom websites, regardless of the turbidity values is essential to try to establish a correlation

between "suspended solids in the water" (MES) and the value of Turbidity (NTU) probes SMATCH

3.6 DISSOLVED OXYGEN (CHANNEL 4)

Sensor: ODO PONSEL (freshwater) _ Optical measurement by luminescence.

(See product datasheet in the annex)

Response time: NC

Water movement: no circulation necessary

Maximum pressure : 5 bar

3.6.1 Choix de la mesure

The channel using the Channel 4 allows to record the value of Saturation or oxygen Concentration in fresh

water.

The choice measure is made by the selection of the sensor type "Oxygen Saturation" or "Oxygen

Concentration" of Channel 4, in the "Channels" of the configuration settings tab

The sensor of oxygen used in the SAMBAT integrates its own adjustment coefficients.

3.6.2 Oxygen saturation measurement setting

In order to take dissolved oxygen saturation measurements, the sensor type and the calibration coefficient in the

oxygen channel must be configured as follows:

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3.6.3 Oxygen concentration measurement setting

In order to take dissolved oxygen concentration measurements, the sensor type and the calibration coefficient in

the oxygen channel must be configured as follows:

3.6.4 Oxygen sensor temperature measurement setting

In order to take temperature measurements using the oxygen sensor, the sensor type and the calibration

coefficient in the oxygen channel must be configured as follows:

3.6.5 Concentration

Measurement range: 0 to 20 mg/l.

Resolution: 0,01%.

Accuracy: +/- 0.1 mg/L

3.6.5.1 Saturation

Measurement range: 0 to 200%.

Resolution: 0,01%.

Accuracy: +/- 1%

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3.7 PH (CHANNEL 5)

Sensor: PONSEL PHEHT.

Measurement range: 0 to 14 pH (insensitive to Na+ ions up to pH 13)

Resolution: 0.0003 pH

Accuracy: ± 0.1 pH

Maximum pressure : 5 bar

3.8 FLUORESCENCE (CHLOROPHYLL A OR PHYCOCYANINE) (CHANNEL 6)

Fluorescence is the phenomenon whereby some compounds absorb certain wavelengths of light and, almost

instantaneously, they emit a light of a different wavelength.

This type of sensor is not factory set.

A voltage adjustment of the measuring stage is carried out in accordance with the sensor manufacturer's

specifications (range 0-5 volts).

If you wish to calibrate the probe for the measurement of "chlorophyll a", it becomes necessary to go through a

phase of algal culture (using the same species you are likely to encounter in your environment).

3.8.1 Chlorophyll A sensor

Chlorophyll a naturally absorbs blue light and emits a red light.

This Turner designs –CYCLOPS 7 sensor detects chlorophyll a by transmitting an excitation beam of light in

the 460 nm range (blue) and detects the light emitted by the sample in the 680 nm range (red).

3.8.2 Chlorophyll

Sensor: Turner Designs CYCLOPS-7

Excitation wavelength: 460 nm

Emission wavelength: 620-715 nm

Detection wavelength: 300-1100 nm

Range: Chlorophyll a; factory set to one of the 3 ranges below:

Measurement range

(µgL)range:

Resolution (µgL)

Linearity

0 –500

< 0.008

0.99 r2

0 –50

< 0.0008

0 –5

< 0.00008

3.8.3 PHYCOCIANIN

Sensor: Turner Designs - CYCLOPS-7

Excitation wavelength: 595 nm

Emission wavelength: 670 nm

Detection wavelength: 300-1100 nm

Range: phycocyanin; factory set to one of the 3 ranges below:

Measurement range (Cml)

Resolution (Cml)

Linearity

0 - 2 000 000 cellules /mL

< 31

0.99 r2

0 –200 000 cellules /mL

< 3

0 –20 000 cellules /mL

< 0.3

A "Solid Secondary Standard" can be purchased as an option to check the stability over time.

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