Hydreka ODEON User manual

1
User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
MULTIPARAMETER
DIGITAL DEVICE
Portable field equipment for measuring and recording water quality
parameters for monitoring purposes

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
CONTENTS
1. CAUTIONS .................................................................................................................................................... 4
2. GENERAL POINTS.......................................................................................................................................... 4
2.1 PRODUCT OVERVIEW .......................................................................................................................................... 4
2.2 –MAIN FUNCTIONS OF THE PORTABLE DIGITAL UNIT ................................................................................................. 4
2.3 –ADDITIONAL FEATURES ..................................................................................................................................... 5
3. TECHNICAL CHARACTERISTICS ...................................................................................................................... 6
3.1 -DESCRIPTION OF THE MULTIPARAMETER UNIT ........................................................................................................ 6
3.2 –COMPONENTS ................................................................................................................................................ 7
3.3 -DESCRIPTION OF THE SENSORS ............................................................................................................................ 8
3.3.1 Oxygen/temperature sensor –PODOA-PODOB................................................................................... 8
3.3.2- Turbidity/temperature sensor –PNEPA-PNEPB ............................................................................... 10
3.3.3- Conductivity/temperature sensor –PC4EA-PC4EB ........................................................................... 12
3.3.4- pH/Redox/temperature sensor –PPHRA-PPHRB ............................................................................. 14
3.3.5- CTZN inductive conductivity sensor - PCTZA. .................................................................................... 17
3.3.6 - Description of the PHOTOPOD ......................................................................................................... 19
4. USING THE MULTIPARAMETER DEVICE....................................................................................................... 20
4.1 –POWER SUPPLY ............................................................................................................................................. 21
4.1.1-Restrictions on battery type............................................................................................................... 21
4.1.2-Changing the batteries....................................................................................................................... 21
4.1.3- Using rechargeable batteries............................................................................................................ 21
4.1.4- Prolonged storage or use .................................................................................................................. 21
4.2 –CONNECTING SENSORS AND THE PHOTOPOD. .................................................................................................. 22
4.2.1-Connecting digital sensors. ................................................................................................................ 22
4.2.2-Connecting the PHOTOPOD. .............................................................................................................. 22
4.3 –GENERAL FUNCTIONS OF THE MULTIPRAMETER DEVICE.......................................................................................... 23
4.3.1 On/Off and standby mode. ................................................................................................................ 23
4.3.2 Navigation keypad. ............................................................................................................................ 23
4.3.3- Start-up screen .................................................................................................................................. 24
4.4. USING THE UNIT WITH DIGITAL PHYSICO-CHEMICAL SENSORS. .................................................................................. 25
4.4.1- SCAN function .................................................................................................................................... 25
4.4.2- Main screen: MEASURE ..................................................................................................................... 26
4.4.3.General functions ............................................................................................................................... 28
a- LANGUAGE selection. ............................................................................................................................................ 28
b. Configuring the DATE and TIME............................................................................................................................. 29
c. Configuring a user .................................................................................................................................................. 29
d. ADDRESSING menu ................................................................................................................................................ 31
e. PREFERENCES MENU.............................................................................................................................................. 34
4.4.4- SELECTING the parameters displayed ................................................................................................ 35
4.4.5- RECORDING measurements ............................................................................................................... 37
4.4.6- Viewing the RESULTS.......................................................................................................................... 43
4.4.7- Calibrating the parameters. ............................................................................................................... 44
a. Adjusting the ambient atmospheric pressure sensor ........................................................................................... 45
b. Defining a salinity value in order to correct the measurement of the dissolved oxygen:...................................... 45
c. Defining a calibration frequency for each parameter: ........................................................................................... 46
d. Calibrating:............................................................................................................................................................. 46

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
d.1- Temperature calibration:............................................................................................................................... 47
d.2- Oxygen level calibration: ............................................................................................................................... 48
d.3- pH calibration ................................................................................................................................................ 51
d.4- Redox calibration ........................................................................................................................................... 53
d.5- Calibrating the 4-electrode conductivity sensor (C4EN) ................................................................................ 54
d.6- Calibrating the inductive conductivity sensor (CTZN) .................................................................................... 56
d.8- Turbidity calibration (in mg/L) ....................................................................................................................... 59
e. Calibration history.................................................................................................................................................. 62
f. Using the factory settings. ...................................................................................................................................... 63
4.5. HOW TO USE THE PHOTOPOD PHOTOMETER. .................................................................................................... 64
4.5.1- Photometer reagents: ........................................................................................................................ 64
4.5.2- Preparing the samples:....................................................................................................................... 64
4.5.3- Opening the Photometer menu:......................................................................................................... 65
4.5.4- Photopod screen................................................................................................................................. 65
a- Disconnecting the PHOTOPOD............................................................................................................................... 66
b- Returning to SENSOR operating mode .................................................................................................................. 66
4.5.5- Selecting an analysis method. ............................................................................................................ 66
4.5.6- Photometric analysis. ......................................................................................................................... 67
a- Performing a blank measurement. ........................................................................................................................ 67
b- Measuring the sample ........................................................................................................................................... 68
4.5.7- Main Menu of the PHOTOPOD........................................................................................................... 69
4.6. LIST OF ANALYSIS METHODS FOR THE PHOTOPOD. ................................................................................... 70
5. DATA VIEWER APPLICATION....................................................................................................................... 73
5.1INSTALLING FROM THE DATA VIEWER DVD. ........................................................................................................ 73
5.1.1 Installing. ............................................................................................................................................. 73
5.1.2 Using the DATA Viewer application..................................................................................................... 73
a. Accessing the configuration of the multiparameter unit ....................................................................................... 73
b. Creating a Study..................................................................................................................................................... 73
c. Downloading data .................................................................................................................................................. 75
e. Data processing: displaying in chart form.............................................................................................................. 76
e.1: Zoom function................................................................................................................................................ 77
e.2 Configuring the cursor. ................................................................................................................................... 77
e.3 Chart wizard. ................................................................................................................................................... 78
e.4 Preview menu ................................................................................................................................................. 79
f. Data processing: displaying in grid form................................................................................................................. 79
5.1.3 Uninstalling. ........................................................................................................................................ 80
6. SENSORS, ACCESSORIES, CONSUMABLES ................................................................................................... 81
6.1- SENSOR MAINTENANCE.................................................................................................................................... 81
6.1.1 OPTOD sensor maintenance................................................................................................................ 81
6.1.2 NTU sensor maintenance. ................................................................................................................... 82
6.1.3 PHEHT sensor maintenance................................................................................................................. 83
6.1.4 C4E sensor maintenance. .................................................................................................................... 84
6.2- DIGITAL SENSORS....................................................................................................... ERREUR ! SIGNET NON DEFINI.
6.3- ACCESSORIES FOR THE MULTIPARAMETER DEVICE–DIGITAL SENSORS ................................... ERREUR ! SIGNET NON DEFINI.
6.4- CONSUMABLES FOR PHYSICO-CHEMICAL PART. ................................................................ ERREUR ! SIGNET NON DEFINI.
6.5 PHOTOPOD ACCESSORIES. ......................................................................................... ERREUR ! SIGNET NON DEFINI.

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
1. CAUTIONS
Users of the portable field equipment should read and understand this document in its entirety. Failure
to comply with the instructions given in this user guide could cause irreparable damage to the
equipment (Handheld instrument, digital sensor and PHOTOPOD).
This equipment must only be used under the conditions described in this user guide. Use under any
other conditions might result in the malfunction of the multiparameter portable device-
Sensor/PHOTOPOD measurement chain.
2. GENERAL POINTS
2.1 Product overview
The multiparameter portable device of measuring and data logging equipment can be used in
conjunction with one or more digital sensors to measure the following parameters:
- Temperature,
- Dissolved oxygen as % saturation, in mg/L and/or ppm,
- Turbidity in NTU, FNU or mg/L,
- Conductivity (compensated at 25°C), salinity and TDS-KCl,
- Induction conductivity (compensated at 25°C), salinity, non-compensated conductivity
- pH,
- Redox.
The multiparameter device unit can also be combined with the PHOTOPOD to operate as a digital field
photometer.
In total, the various versions of the PHOTOPOD can measure more than 50 parameters, including:
NH4+, NO3-, PO4, COD, NO2-, Ptotal, SO42-, Turbidity, Fe, Cu, Mn, Cl2, CN-, ClO2, TH, TA, TAC, N2H4,
DEHA, Fe, Br2, Cu, Mn, Mo, SiO2, Zn, Benzotriazole, phosphonates…
2.2 –Main functions of the portable digital unit
The multiparameter portable unit can measure both physico-chemical and photometric parameters.
a)- Automatic recognition of the type of sensor connected, and its serial number.
The calibration coefficients associated with the parameters measured by the sensor, and the historical
data from calibrations performed previously, are stored within the sensor and are instantly available
to the portable device.
The default parameters for each type of sensor are measured and displayed instantaneously by the
portable device.
Automatic recognition of the PHOTOPOD, and of its version and serial No.
b)- Automatic refreshing of the measured value for all the selected parameters.
c)- Operation in photometer mode, with selection of the analysis method (including performing blank
measurements).
d)- Three data logging modes:
- Snapshot recording mode: saves the value of one of the active parameters at the instant
when a keypad command is pressed,
- Automatic recording mode, started manually when a keypad command is pressed,
- Automatic recording mode, programmed by setting the start and end date and time of the
measurement campaign.
The saved data is managed by creating a file named by the user (location of the measurement
campaign, sample name, etc.).

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
e)- Each measurement saved in a specific file can be viewed via the RESULT menu
either by scrolling through the data or by selecting the measurement number.
f)- Valuable traceability feature: the user’s identity can be specified. This information is added to the
saved data, and notably to the historical data for calibration operations.
g)- The unit switches to standby mode automatically to increase its autonomy.
2.3 –Additional features
a)- High level of equipment protection: IP67 (waterproof) guaranteed when new, prior to any user
intervention on the unit (e.g. to replace the batteries)
b)- The equipment operates autonomously, powered by four AA alkaline batteries or by 4 AA NiMH
rechargeable batteries (provided as an option, with charger cable) or by an external 12V power source
(external power supply cable available as an option).
c)- Saved data can be retrieved from the device (via a USB link) and viewed on a PC after installing the
proprietary software.

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
3. TECHNICAL CHARACTERISTICS
3.1 - Description of the multiparameter unit
Size: 43/122/205 (H/L/D in mm)
Weight: 560 g (fitted with 4 NiMH rechargeable batteries but not including sensor and cable)
Ingress protection rating: IP67
Storage temperature : -20 to +60°C. (-4 to +140°F)
Operating temperature : 0 to +60°C. (+32 to +140°F)
Internal power supply: 4 AA alkaline batteries or 4 AA NiMH rechargeable batteries
External power supply: 12V dc via a special cable.
Inputs: - 1 or 2 sensor inputs, 6-pin grey metal socket(s),
- 1 external power supply or charger input (for units fitted with 4
NiMH rechargeable batteries), 7-pin black metal socket.
Output:- USB link to PC, common connector with external power supply input, 7-pin black metal
socket.
NOTE:
On the rear of the unit are 4 holes used to vent to atmospheric pressure the pressure sensor located
inside the unit. The unit is, however, still sealed, due to a hydrophobic vent fitted inside the unit.
View of the rear of the device
Grey socket, 1
numericalsensor input
and PHOTOPOD
Output
Charger power supply input
External power supply input
Grey socket, 1 sensor inputs
Vent to atmospheric
pressure
Serial No.

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
3.2 –Components
The standard components of the units are:
No.
DESCRIPTION
1
Carrying case
2
1 multiparameter unit,
4 AA alkaline batteries (fitted in the unit when it leaves the factory)
3
1 carrying strap
4
1 CD containing the user guide in pdf format and the Data Viewer software
(a data management and logging application for PC),
1 laminated quick-reference guide
5
1 handled unit-PC link cable (USB)
6
1 or more digital sensors
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1 PHOTOPOD
8
Bottles of standard solutions (depending on the model of sensor provided)
9
Reagent KITS for photometric measurements
The components and accessories available as optional extras are:
10
1 cable used to recharge the NiMH batteries without having to remove
them from the device,
And/or 1 external 12 V power supply cable
11
4 AA NiMH rechargeable batteries (fitted inside the unit)












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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
3.3 - Description of the sensors
3.3.1 Oxygen/temperature sensor –PODOA-PODOB
The OPTOD dissolved oxygen sensor applies the luminescence-based optical measurement technology
approved by ASTM International Method D888-05.
An oxygen-sensitive layer is illuminated by a diode that emits blue light. The sensitive layer reacts by
emitting red light (fluorescence). The intensity of the emitted light and the delay between the
absorption and emission of this light vary depending on the concentration of oxygen.
This optical technology requires only very few consumables: no changing of membranes, no
electrolyte.
The DO disk, which contains the sensitive material, typically requires changing once every 2 years.
Technical characteristics:
Measurement principle
Luminescence-based optical measurement
Measurement ranges
0.00 to 20.00 mg/L or ppt
0-200% (saturation)
Resolution
0.01
Accuracy
+/- 0.1 mg/L or +/- 1 %
Response time
90% of the value in less than 60 seconds
Water movement
No circulation required
Temperature compensation
Via an NTC thermistor
Temperature measurement range
0 - 60°C
Temperature resolution
0.01
Temperature accuracy
+/- 0.5 °C
Storage temperature
- 10°C to + 60°C
Signal interface
Modbus RS-485 (SDI-12)
Measurement refresh rate
< 1 second maximum
Dimensions
Diameter: 25 mm; Length not including cable: 146
mm
Weight
450 g (sensor + 3 m cable)
Material in contact with the medium
Stainless steel 316L, polyurethane
Maximum pressure
5 bar
Cable/Connection hardware
9-wire shielded conductor, uncoated-strand
polyurethane sleeve, sealed metal Fisher connector
Screw-on sieve cap, removed
when replacing the DODISK.
Do not unscrew except when
changing the sensitive part.
Sensor identification with serial No.
in the format:
SN-PODOA-XXXX/SN-PODOB-XXXX

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
OPTOD sensor maintenance:
The OPTOD sensor must be kept clean, especially the DO disk and its surrounding area. Any trace of
biofilm might induce a measurement error.
After each use, rinse the sensor before storing it.
If any dirt builds up on the membrane, clean the head of the sensor with a little warm, soapy water. A
sponge may be used, but do not use the "scouring" face of a dishwashing sponge.
Then rinse the sensor before storing it.
If the sensor is due to be used again shortly, place a wad of cotton wool, moistened with a few drops
of water, in the storage bag to keep the disk hydrated. If the sensor is stored for longer periods the
disk will dry out. In this case, ensure that the disk is rehydrated sufficiently before use so that the
sensor is fully operational.
Oxygen calibration:
Using a clean sensor, occasionally check the 0% Sat value by immersing the sensor in a sulphite solution
in water (sulphite concentration < 2% by weight). If there is a zero error, perform a complete
calibration of the sensor.
Caution: do not leave the sensor in contact with the sulphite solution for more than 1 hour.
The 2-point calibration is performed using a sulphite solution (for the offset) then, after rinsing and
drying, the sensor’s gain is determined by exposing the sensor to humid, oxygen-saturated air.
Place the sensor over a surface of water without getting in touch with the water.
Temperature calibration:
The temperature sensor is calibrated annually, and is a 2-step process:
- step 1 (offset): the sensor is placed in a container containing a water bath and ice,
- step 2 (gain): the sensor is placed in a medium (air or water in a temperature-controlled bath) at a
known temperature. This temperature may be measured using a certified thermometer.
Changing the stainless steel sieve cap with integrated disk:
If measurement drift is detected while using the equipment, clean and then calibrate the sensor.
If calibration is not possible for whatever reason, change the membrane holder containing the sensitive
material.
Unscrew and remove the sensor's stainless steel sieve, clean the optical window with soapy water and
a sponge, then finish by wiping with a little alcohol to remove any smears on the window.
Then fit a new sieve onto the head and screw it on slowly so that the air inside the sensor can escape
via the threads.
Then perform a 2-point calibration procedure: 0% Sat and 100 % in air.
CAUTION: ONLY remove the sieve if necessary, and screw it back on slowly.
Stainless steel
sieve cap with
DODisk
Optical window
T°C sensor

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
3.3.2- Turbidity/temperature sensor –PNEPA-PNEPB
The measuring principle used by the turbidity sensor is based on nephelometry: a diode emits infrared
light (880 nm) and an IR receiving diode, set to one side at an angle of 90°, detects the amount of
scattered light (standardized measurement). The sensor can be calibrated using a formazine standard.
This optical technology is very economical and requires very little maintenance and no consumables
(simply gentle cleaning of the optical components).
Technical characteristics:
Measurement principle
Scattering of IR at 90°
Measurement ranges
0 to 4,000 NTU in 4 ranges:
0- 50 NTU
0 –200 NTU
0 –1,000 NTU
0 –4,000 NTU
0 –4,500 mg/L
Resolution
from 0.1 to 1, depending on the NTU range
from 0.01 to 1, depending on the mg/L range
Accuracy
+/- 1 % of full scale for each range
Response time
< 5 s
Operating temperature
0°C to + 50°C
Temperature measurement
Using an NTC thermistor
Temperature measurement range
0 - 60°C
Temperature resolution
0.01
Temperature accuracy
+/- 0.5 °C
Storage temperature
-10°C to + 60°C
Signal interface
Modbus RS-485 as standard (SDI-12 as an option)
Measurement refresh rate
< 1 second maximum
Dimensions
Diameter: 27 mm; Length not including cable: 170 mm
Weight
300 g (with 3-metre cable)
Materials
PVC, PMMA, POM C
Maximum pressure
5 bar
Cable/Connection hardware
9-wire shielded conductor, polyurethane sleeve, sealed
metal Fisher connector
NTU sensor maintenance:
Fiber optic measuring
head
Sensor identification with serial
No., in the format:
SN-PNEPA-XXXX/SN-PNEPB-XXXX

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
The NTU (Nephelometry Turbidity Unit) sensor must be kept clean, especially the head and
surrounding area containing the optical fibers. Any trace of biofilm or dirt might induce a measurement
error.
After each use, rinse the sensor before storing it.
If any dirt builds up on the sensor's head, clean it off with a little warm, soapy water. A sponge may be
used, but do not use the "scouring" face of a dishwashing sponge.
Then rinse the sensor before storing it.
Turbidity calibration (in NTU):
The NTU sensor is an optical sensor which requires very little calibration. Using a clean sensor,
occasionally check the 0 NTU value by immersing the sensor in an opaque bottle containing bubble-
free distilled water. If there is a zero error, perform a complete calibration of the sensor.
This procedure requires a formazine solution whose concentration lies at the mid-point of the
measurement range being calibrated. This solution is prepared from a 4,000-NTU stock solution.
Use a 200 ml volumetric flask when preparing the solutions. Add the required volume of formazine
(refer to the table below) and make up to 200 ml with distilled water.
Formazine solutions with concentrations of less than 1,000 NTU degrade fairly quickly; do not keep the
solution for more than a few days.
The 2,000-NTU solution can be kept for 2 to 3 weeks in a fridge in an opaque bottle.
Measurement range
Concentration of
formazine standard
solution
Volume of formazine
(mL)
0.0-50.0 NTU
25 NTU
1.25 mL
0.0-200.0 NTU
100 NTU
5 mL
0-1,000 NTU
500 NTU
25 mL
0-4,000 NTU
2,000 NTU
100 mL
Turbidity calibration in mg/L:
The calibration of the turbidity sensor in mg/l involves performing a check at 2 points: 0 mg/L in bubble-
free distilled water, and a second point in a sample of sludge representative of the medium to be
measured.
For the second point, the sensor records its measurement. The sample is then sent to the laboratory
for a formal determination of the turbidity (dry weight).
As soon as the result of the laboratory analysis is entered, the sensor resets its calibration
automatically based on the measured value of the sludge.
Up to 10 calibration operations can be saved, and the coefficients specific to the site at which a
calibration was performed can be selected.
Temperature calibration:
The temperature sensor is calibrated annually, and is a 2-step process:
- step 1 (offset): the sensor is placed in a container containing a water bath and ice,
- step 2 (gain): the sensor is placed in a medium (air or water in a temperature-controlled bath) at a
known temperature. This temperature may be measured using a certified thermometer.

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
3.3.3- Conductivity/temperature sensor –PC4EA-PC4EB
The operation of the sensor is based on 4-electrode conductivity technology: an alternating current at
constant voltage is set up between a pair of graphite primary electrodes. The secondary electrodes,
made from platinum, adjust the drive potential at the primary electrodes to compensate for any
fouling. The voltage measured between the primary electrodes varies depending on the resistance of
the medium, and thus the conductivity.
Technical characteristics:
Measurement principle
4-electrode type conductivity sensor (2 graphite + 2 platinum
electrodes
Measurement ranges
0-200.0 µS/cm
0 –2,000 µS/cm
0,00 –20.00 mS/cm
0,0 –200.0 mS/cm
Resolution
from 0.01 to 1, depending on the range
Accuracy
+/- 1 % of full scale
Response time
< 5 s
Temperature compensation
Using an NTC thermistor
Temperature measurement range
0 - 60°C
Temperature resolution
0.01
Temperature accuracy
+/- 0.5 °C
Storage temperature
- 10°C to + 60°C
Signal interface
Modbus RS-485 as standard (SDI-12 as an option)
Measurement refresh rate
< 1 second maximum
Dimensions
Diameter: 27 mm; Length not including cable: 177 mm (not
including temperature sensor)
Weight
350 g (sensor + 3 m cable)
Material in contact with the medium
PVC, POM-C, stainless steel,
Maximum pressure
5 bar
Cable/Connection hardware
9-wire shielded conductor, polyurethane sleeve, sealed metal
Fisher connector
Temperature sensor
Sensor head with measuring
slot
Sensor identification with the
serial No. in the format:
SN-PC4EA-XXXX/SN-PC4EB-XXXX

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
C4E sensor maintenance:
The C4E sensor uses a 4–electrode conductivity measuring principle, and care must be taken to
maintain these 4 electrodes in optimal working condition. After each use, rinse the sensor before
storing it.
To clean the electrodes (made from graphite and platinum), insert and retract an abrasive strip through
the slot in the sensor, under a stream of running water.
Conductivity calibration:
The calibration of the conductivity sensor is a 2-step process:
- step 1 (offset): the sensor is exposed to air,
- step 2 (gain): the sensor is placed in a buffer solution of known conductivity.
Measurement range
Concentration of standard
solution
0.0-200.0 µS/cm
84 µS/cm
0 -2,000 µS/cm
1,413 µS/cm
0.00 - 20.00 mS/cm
12,880 µS/cm
0.0 –200.0 mS/cm
111.8 mS/cm
Temperature calibration:
The temperature sensor is calibrated annually, and is a 2-step process:
- step 1 (offset): the sensor is placed in a container containing a water bath and ice,
- step 2 (gain): the sensor is placed in a medium (air or water in a temperature-controlled bath) at a
known temperature. This temperature may be measured using a certified thermometer.

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
3.3.4- pH/Redox/temperature sensor –PPHRA-PPHRB
PONSEL's two-part pH/Redox/T°C sensor consists of an electronics part and a "consumable" part. The
sensor is delivered with the two parts assembled, and when the standard gel is used up only the
consumable part needs to be changed.
The pH and Redox is measured by an Ag/AgCl reference electrode in a "PLASTOGEL"® KCl-saturated
plasticized electrolyte.
The “Plastogel”® electrolyte is in direct contact with the external environment without interposition
of capillary or porous material. There is therefore no risk of fouling or deactivation of the reference.
The electrode used to measure the pH is a pH-sensitive glass bulb (made from special glass) welded to
the end of a crystal tube, and the electrode for Redox measurements is a platinum disk.
The temperature is measured via an NTC thermistor inserted in a stainless steel sheath.
Technical characteristics:
pH measurement
Measurement principle (pH)
pH/reference combined electrode: special glass,
Ag/AgCI reference. Gel (KCl) electrolyte
Measurement range
0 –14 pH
Resolution
0.01 pH
Accuracy
+/- 0.1 pH
Measurement of the Redox potential
Measurement principle (Redox)
Redox/reference combined electrode: Platinum disk,
Ag/AgCI reference. Gel (KCl) electrolyte
Measurement range
- 1000,0 à + 1000,0 mV
Resolution
0.1 mV
Accuracy
± 2 mV
Temperature measurement
Measurement principle (T°C)
NTC thermistor
Operating temperature
0.00 °C to + 60.00°C
Resolution
0.01 °C
Accuracy
± 0.5 °C
GENERAL
Storage temperature
0°C to + 60°C
Ingress rating
IP 68
Signal interface
Modbus RS-485 as standard (SDI-12 as an option)
Measurement refresh rate
< 1 second maximum
Dimensions
Electronics part: Diameter = 27 mm; Length without
cable: 159 mm,
Consumable part: Diameter = 21mm; Length = 92 mm
Weight
350 g
Materials in contact with the medium
PVC, POM-C, special pH glass, platinum
Maximum pressure
5 bar
Cable/Connection hardware
9-wire shielded conductor, polyurethane sleeve,
sealed metal Fisher connector

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
Exploded view of the sensor
pH/ORP sensor maintenance:
Between measurements, place a wad of cotton wool, soaked in KCl, in the storage bag.
Take care to keep the pH sensor’s glass bulb as clean as possible. Remove any build-up of dirt by
washing the pH sensor’s glass bulb in a bath of soapy water, and then rinse before storing or using.
If this form of cleaning is not sufficient, the sensor may be placed in a special cleaning solution
overnight, then rinsed before use.
Wherever possible, do not let this glass bulb come into contact with oils, hydrocarbons or colloids,
To clean the Redox sensor, rub an abrasive strip over the platinum disk under a stream of running
water.
pH calibration:
The calibration of the pH sensor is a 2-step process:
- step 1 (offset): the sensor is placed in a pH 7.01 buffer solution.
- step 2 (gain): the sensor is placed in a pH 4.01 (or 9.01 or 10.01) buffer solution.
Redox calibration:
View of the assembled sensor
Electronic part with cable
Threaded ring for connecting the
“electronic” and “consumable” parts
pH glass bulb for measuring
the pH.
Stainless steel sleeved NTC thermistor
for temperature measurement
Platinum disk for measuring the
Redox potential
Protective sieve cap
Replaceable cartridge containing the measuring
components for pH, Redox and temperature.
Part must be replaced as soon as the reference
gel is exhausted.

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
The calibration of the Redox sensor is a 2-step process:
- step 1 (offset): the sensor is exposed to air for the 0 mV value,
- step 2 (gain): the sensor is placed in a buffer solution (240 mV or 470 mV).
Temperature calibration:
The temperature sensor is calibrated annually, and is a 2-step process:
- step 1 (offset): the sensor is placed in a container containing a water bath and ice,
- step 2 (gain): the sensor is placed in a medium (air or water in a temperature-controlled bath) at a
known temperature. This temperature may be measured using a certified thermometer.

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
3.3.5- CTZN inductive conductivity sensor - PCTZA.
The operation of the sensor is based on an inductive measurement principle: a ring-type coil is excited
at a fixed frequency and the response is retrieved on a second coil, linked to the excited coil. The
coupling between the coils varies depending on the conductivity of the conducting solution present.
This sensor is not sensitive to fouling and is suited to measurements in contaminating media such as
wastewater networks, seawater, etc.
This sensor requires an external power source, such as a 12 V battery or a 5-28 V power supply, and
cannot be supplied directly by the Mutiparameter unit.
Technical characteristics:
Measurements
Measurement principle (CRZ)
Inductive conductivity sensor with temperature
compensation (T°25°C)
Conductivity measurement range
0.0-100.0 mS/cm
Resolution
0.01 mS/cm
Salinity measurement range
0.00-78.00 g/Kg
Resolution
0.01 g/Kg
Temperature measurement
Measurement principle (T°C)
NTC thermistor
Operating temperature
0.00 °C to + 60.00°C
Resolution
0.01 °C
Accuracy
± 0.5 °C
GENERAL
Storage temperature
0°C to + 60°C
Ingress rating
IP 68
Signal interface
Modbus RS-485 /SDI12
Measurement refresh rate
< 1 second maximum
Dimensions
Max. diameter 62.4 mm; Length not including
cable: 196 mm.
Weight
700 g
Materials in contact with the medium
EPDM, PVC, Stainless steel
Maximum pressure
5 bar
Cable/Connection hardware
9-wire shielded conductor, polyurethane sleeve,
sealed metal Fisher connector
CTZN sensor maintenance:
The inductive conductivity sensor is only very slightly sensitive to fouling and does not require high-
level maintenance.
Clean the sensor with soapy water and ensure that the central portion of the loop is not obstructed.
The calibration of the conductivity is a 2-step process:
- step 1 (offset): the sensor is exposed to the air for the 0 mS/cm value,
- step 2 (gain): the sensor is placed in a buffer solution with a conductivity of 1.413 mS/cm; 12.88
mS/cm or 20 mS/cm (the conductivity of the solution must correspond to that usually measured).

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
Temperature calibration:
The temperature sensor is calibrated annually, and is a 2-step process:
- step 1 (offset): the sensor is placed in a container containing a water bath and ice,
- step 2 (gain): the sensor is placed in a medium (air or water in a temperature-controlled bath) at a
known temperature. This temperature may be measured using a certified thermometer.
Sleeve of the sensor with the serial No. in
the format: SN-PCTZA-XXXX
Head of the inductive loop sensor

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
3.3.6 - Description of the PHOTOPOD
The PHOTOPOD is a diode-based photometer with integrated filters that communicate with the
multiparameter device via a digital link. Depending on the version of the PHOTOPOD, up to 50
parameters may be measured.
The PHOTOPOD range is described below:
- PHOTOPOD, Single-Parameter version: dedicated to measuring one of the following parameters:
NH4+, NO3-and PO43-; NO2-, Al, Br2, BZ3Azol, Cl-, Cl2, ClO2, CN-, Cr6+, Cr, Cu, COD, N2H4, NH4+ , N, Ni,
NO2- , NO3-, O3 , pH, PO43- , P2O5, Ptot, SiO2.
- PHOTOPOD version full LS : multiparameter photometer to analyse 40 parameters, using liquid
reagents, tablet reagents or test tubes.
- PHOTOPOD version full SP : multiparameter photometer to analyse 40 parameters, using tablet
reagents or test tubes.
Technical characteristics:
Type of instrument
Diode-based photometer for water analysis
Wavelengths
639 nm, 591 nm, 518 nm, 468 nm, 400 nm
Detector
Silicon photodiode
Cell support
For round cells, 16 mm in diameter
More than 50 parameters can be
analysed
Isocyanuric acid, Al, Br2, BZ3Azol, Cl-, Cl2, ClO2, CN-, Cr6+, Cr, Cu,
COD, N2H4, NH4+ , N, Ni, NO2- , NO3-, O3, pH, PO43- , P2O5 ,
Ptot, SiO2…
Versions: Urban WTP, Mini WTP
NH4+, NO3-, PO4
Wastewater
COD, NH4+, NO3-, NO2-, Ptotal, SO42-, turbidity
Drinking water
NH4+, NO3-, Fe, Cu, Mn, Cl2, CN-, ClO2, SO42-, TH, TA, TAC
Boiler room/Air conversion
PO4, N2H4, DEHA, Fe, Cl2, Br2, Cu, Mn, Mo, NO2-, SiO2, SO42-,
Zn, TH, TA, TAC, Benzotriazole, phosphonates
Wavelength adjustment
Automatic
Blank measurements
Electronic storage
Measurement
Direct for concentration, absorbance or transmittance
Signal interface
RS-485 digital
Connection
Multiparameter intrument
Dimensions
Maximum height: 62 mm; Length x width: 96x58 mm
Material in contact with the medium
ABS
Ingress protection rating
IP67
PHOTOPOD maintenance:
To ensure that the PHOTOPOD operates optimally, make sure that the measuring wells, which receive
the tube, are kept clean and free from particles, etc.
When storing the PHOTOPOD, place the protective cover over the measuring wells.
When measuring, place the cover over the measuring wells after fitting the analysis tube.
Maintaining the measuring wells:
To ensure measurement accuracy, make sure that the measuring cells used for the BLANK stage and
the MEASURING stage are kept perfectly clean and from fingermarks, dust, etc.
In the tube becomes dirty, clean with a clean cloth, taking care not to scratch the tube.
Note : DON’T INTRODUCE WATER IN THE MEASURING WELL.

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User manual MULTIPARAMETER DEVICE
Last update: February 2015
Version : 5.0.2
Measuring well into which the
measuring tube is inserted
Cover
Measuring tube
Sealed metal Fischer
connector