Hach POLYMETRON 8350 User manual
DOC024.98.93052
POLYMETRON Model
8350/8351 Probes
06/2018, Edition 7
User Manual
Benutzerhandbuch
Manuale utente
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Εγχειρίδιο χρήστη
English..............................................................................................................................3
Deutsch............................................................................................................................ 9
Italiano............................................................................................................................ 15
Français......................................................................................................................... 21
Español.......................................................................................................................... 27
Português...................................................................................................................... 33
Čeština........................................................................................................................... 39
Dansk..............................................................................................................................45
Nederlands....................................................................................................................51
Polski.............................................................................................................................. 57
Svenska......................................................................................................................... 63
Suomi..............................................................................................................................69
Türkçe.............................................................................................................................75
Hrvatski.......................................................................................................................... 81
Română......................................................................................................................... 87
Slovenski....................................................................................................................... 93
Ελληνικά........................................................................................................................ 99
2
Specifications
The 8350 pH and 8351 Redox probes are dedicated for process measurements. The pH probes
incorporate impedance control and a temperature sensor in contact with the sample.
8350.4 8350.5 8351
1 - Glass
2 - Tube containing PT100
3 - Platinum ring
4 - PTFE Junction
A special model (8350.3) is compatible with all the standard accessories and is designed for use in
hydrofluoric acid.
8350.4 8350.5 8351
Application Measuring pH at high
temperatures Measuring pH in a
waste water
environment
Measuring redox
Junction type Flat, PTFE Flat, PTFE Flat, PTFE
Body material PPS CPVC PPS
Measurement range 0-14 pH 0-12 pH ± 1500 mV
Maximum temperature (°C) 110 80 110
Maximum pressure 10 bar 10 bar 10 bar
Drift (/ week) < 3 mV < 3 mV < 3 mV
Offset @ pH7 ± 20 mV ± 20 mV N/A
Slope 56-61 mV/pH 56-61 mV/pH N/A
Reference impedance @ 25°C < 50 Kohm < 50 Kohm < 50 Kohm
Glass impedance @ 25°C 150-500 Mohm 150-500 Mohm Platinum
General information
In no event will the manufacturer be liable for direct, indirect, special, incidental or consequential
damages resulting from any defect or omission in this manual. The manufacturer reserves the right to
make changes in this manual and the products it describes at any time, without notice or obligation.
Revised editions are found on the manufacturer’s website.
English 3
Safety information
N O T I C E
The manufacturer is not responsible for any damages due to misapplication or misuse of this product including,
without limitation, direct, incidental and consequential damages, and disclaims such damages to the full extent
permitted under applicable law. The user is solely responsible to identify critical application risks and install
appropriate mechanisms to protect processes during a possible equipment malfunction.
Please read this entire manual before unpacking, setting up or operating this equipment. Pay
attention to all danger and caution statements. Failure to do so could result in serious injury to the
operator or damage to the equipment.
Make sure that the protection provided by this equipment is not impaired. Do not use or install this
equipment in any manner other than that specified in this manual.
Use of hazard information
Precautionary labels
Read all labels and tags attached to the instrument. Personal injury or damage to the instrument
could occur if not observed. A symbol on the instrument is referenced in the manual with a
precautionary statement.
This is the safety alert symbol. Obey all safety messages that follow this symbol to avoid potential
injury. If on the instrument, refer to the instruction manual for operation or safety information.
This symbol indicates that a risk of electrical shock and/or electrocution exists.
This symbol indicates the presence of devices sensitive to Electro-static Discharge (ESD) and
indicates that care must be taken to prevent damage with the equipment.
This symbol, when noted on a product, indicates the instrument is connected to alternate current.
Electrical equipment marked with this symbol may not be disposed of in European domestic or
public disposal systems. Return old or end-of-life equipment to the manufacturer for disposal at no
charge to the user.
Products marked with this symbol indicates that the product contains toxic or hazardous substances
or elements. The number inside the symbol indicates the environmental protection use period in
years.
Installation
The probes can be installed in any position.
• Insertion mounting: screw-in or flange fitting
• Immersion mounting: immersion shafts (0.5, 1, or 1.5 meters) with fixed, adjustable or clip-type
flange.
4 English
The probes are fitted with 10 metres of cable as standard.
For longer cable lengths (up to 25 meters) use a junction box (08350=A=8500) and the 2654 cable
(358048,00000).
For cable lengths greater than 25 meters, use a pre-amplifier unit (08350=A=8000) and the
2666 cable (370=506=025). In this case it will not be possible to monitor the impedance.
Connection to the 9135 transmitter
Directly to the 9135
1 pH module 5 Input (measured pH or redox) - transparent
2 Probe 6 Ref. (reference) - black
3 Temp+ (PT100) - white 7 Liquid earth (liquid contact) - blue
4 Temp- (PT100) - red 8 External shielding - EMC protection
Using the pre-amplifier unit
With this scenario it is impossible to connect the solution ground.
English 5
1 Model 2666 cable 9 -V - grey
2 Model 08350=A=8000 pre-amplifier 10 Input (measured pH or ORP) - green
3 Sensor 11 Temp+ (Pt100) - red
4 External shielding - EMC protection 12 Temp- (Pt100) - white
5 Temp+ (Pt100) - white 13 Ref. (reference) - black
6 Temp- (Pt100) - pink 14 Input (measured pH or ORP) - clear
7 Ref. (reference) - yellow 15 External shielding - EMC protection
8 +V - brown
Using the junction box
1 Model 2654 cable 9 External shielding - EMC protection
2 Model 08350=A=8500 junction box 10 External shielding - EMC protection
3 Sensor 11 Input (measured pH or ORP) - clear
4 Input (measured pH or ORP) - core 12 Ref. (reference) - black
5 Ref. (reference) - shielding 13 Temp+ (Pt100) - red
6 Temp+ (Pt100) - white 14 Temp- (Pt100) - white
7 Temp- (Pt100) - violet 15 Liquid earth (liquid contact) - blue
8 Solution ground (liquid contact) - yellow/green
For pH sensors only:
• Temperature measurement
• Impedance measurement (blue wire from the controller):
• Program the control frequency upper and lower limits (refer to the 9500 user manual):
• Glass impedance: 50 Mohm to 500 Mohm
• Reference impedance: 1 to 100 kohm
Calibration
Before calibrating for the first time:
1. Shake the probe gently to remove any air bubbles from underneath the glass bulb.
2. Remove the storage cap and rinse the probe with demineralized water.
6 English
pH
Refer to the pH transmitter user manual to select the type of calibration.
1. Rinse the probe with the freshly prepared first buffer solution (pH 6.88 or 7.00) ideally at the same
temperature of the measurement sample.
2. Immerse the probe to a depth of 4 to 5 cm and wait for stable measurements (pH and
temperature) before calibrating.
3. Rinse the probe, first with demineralised water and then with the second buffer solution (pH close
to that of the process, 4.00 or 9.22).
4. Immerse the probe to a depth of 4 to 5cm and wait for stable measurements (pH and
temperature) before calibrating.
5. Rinse the probe in demineralized water.
Redox
1. Rinse the probe with a freshly prepared standard quinhydrone solution ideally at the same
temperature of the measurement sample.
2. Immerse the probe to a depth of 4 to 5 cm and wait for stable measurements before calibrating.
3. The measured potential is defined with respect to the Ag/AgCl reference system. Add 200 mV for
an EH2 reference potential.
Cleaning and regeneration
These electrodes are considered as consumable items and therefore have a limited lifespan, largely
dependant on the application. Under normal conditions a typical lifespan would be about one year.
Before replacing them, however, simply cleaning the electrodes may regenerate them.
Such cleaning will be necessary whenever the following are observed:
• An offset from zero or a measurement drift (the reference system is contaminated)
• A significant drop in response time and a loss of slope (glass diaphragm or platinum ring dirty)
Provided the glass diaphragm is neither scratched nor cracked, follow one of the cleaning
procedures below:
• Salt deposits: HCl 0.1M (5 mins) + NaOH 0.1M (5 mins)
• Grease or oil film: Detergent + water
• Reference junction dirty: KCl 3M @ 60-80°C for 10 mins, then cool in KCl 3M @ 25°C
• Calcium, metal hydroxide or protein deposits: HCl 10% for 10 mins
• Deposits, wear on redox measurements: Aqua regia (1/1 concentrated HCl / concentrated HNO3).
This process must only be carried out by qualified individuals.
If the electrode response is still not improved, replace it.
Storage
• Never store the probes in air or with a dry protection cap. Moisten the cap with KCl 3M
• Storage temperature: 10 to 30°C
• Typical duration: 6 months
English 7
Probe and accessory part numbers
Description Item no.
Combination pH probe for hydrofluoric acid environments with integrated temperature
sensor. 08350=C=0003
Combination pH probe for high temperatures with protected sensor, impedance
control and integrated temperature sensor. 08350=C=0004
Combination pH probe for waste water environments incorporating a protected, flat
sensor, impedance control and integrated temperature sensor 08350=C=0005
Combination redox probe for high temperatures 08351=C=0000
PVC DN 40 flow chamber, flange fitting 08350=A=9500
PP immersion shaft, clip fitting (0.5, 1, 1.5 meter) 08350=A=1105/10/15
PP immersion shaft, adjustable flange (0.5, 1, 1.5 meter) 08350=A=1005/10/15
PP immersion shaft, fixed flange (0.5, 1, 1.5 meter) 08350=A=6005/10/15
PP chemical cleaning kit (nozzle and feed pipes) 08350=A=7000
Liquid reservoir unit 08350=A=4000
Junction box 08350=A=8500
Pre-amplifier for 8350 probes 08350=A=8000
Low-impedance cable, type 2666 370=506=025
High-impedance co-axial cable, type 2654 358048,00000
8 English
Spezifikationen
Die Sonden Ph 8350 und Redox 8351 sind für Messungen unter schwierigen Bedingungen
vorgesehen (Schmutz) und gegen Stösse geschützt. Die pH Sonden verfügen über einen
Temperaturfühler, der mit dem Prozess und der Impedanzkontrolle in Kontakt ist.
8350.4 8350.5 8351
1 - Glas
2 - Rohr mit PT100
3 - Platinenring
4 - Verbindung PTFE
Eine spezielle Version 8350.3, kompatible mit dem Standardzubehör, ermöglicht Kontakt mit
Fluorwasserstoffsäure.
8350.4 8350.5 8351
Anwendung pH-Messung bei hohen
Temperaturen pH-Messung in
verschmutzender
Umgebung
Redox-Messung
Verbindungstyp Flach, PTFE Flach, PTFE Flach, PTFE
Körpermaterial PPS CPVC PPS
Arbeitsbereich 0-14 pH 0-12 pH ± 1500 mV
Max. Temperatur (°C) 110 80 110
Max. Druck 10 bar 10 bar 10 bar
Abweichung (/ Woche) < 3 mV < 3 mV < 3 mV
Offset @ pH7 ± 20 mV ± 20 mV N/A
Steilheit 56-61 mV/pH 56-61 mV/pH N/A
Referenz-Impendanz @ 25 °C < 50 Kohm < 50 Kohm < 50 Kohm
Glas-Impendanz @ 25 °C 150-500 Mohm 150-500 Mohm Platin
Allgemeine Informationen
Der Hersteller ist nicht verantwortlich für direkte, indirekte, versehentliche oder Folgeschäden, die
aus Fehlern oder Unterlassungen in diesem Handbuch entstanden. Der Hersteller behält sich
jederzeit und ohne vorherige Ankündigung oder Verpflichtung das Recht auf Verbesserungen an
diesem Handbuch und den hierin beschriebenen Produkten vor. Überarbeitete Ausgaben der
Bedienungsanleitung sind auf der Hersteller-Webseite erhältlich.
Deutsch 9
Sicherheitshinweise
H I N W E I S
Der Hersteller ist nicht für Schäden verantwortlich, die durch Fehlanwendung oder Missbrauch dieses Produkts
entstehen, einschließlich, aber ohne Beschränkung auf direkte, zufällige oder Folgeschäden, und lehnt jegliche
Haftung im gesetzlich zulässigen Umfang ab. Der Benutzer ist selbst dafür verantwortlich, schwerwiegende
Anwendungsrisiken zu erkennen und erforderliche Maßnahmen durchzuführen, um die Prozesse im Fall von
möglichen Gerätefehlern zu schützen.
Bitte lesen Sie dieses Handbuch komplett durch, bevor Sie dieses Gerät auspacken, aufstellen oder
bedienen. Beachten Sie alle Gefahren- und Warnhinweise. Nichtbeachtung kann zu schweren
Verletzungen des Bedieners oder Schäden am Gerät führen.
Stellen Sie sicher, dass die durch dieses Messgerät bereitgestellte Sicherheit nicht beeinträchtigt
wird. Verwenden bzw. installieren Sie das Messsystem nur wie in diesem Handbuch beschrieben.
Bedeutung von Gefahrenhinweisen
Warnaufkleber
Lesen Sie alle am Gerät angebrachten Aufkleber und Hinweise. Nichtbeachtung kann Verletzungen
oder Beschädigungen des Geräts zur Folge haben. Im Handbuch werden auf die am Gerät
angebrachten Symbole in Form von Warnhinweisen verwiesen.
Dies ist das Sicherheits-Warnsymbol. Befolgen Sie alle Sicherheitshinweise im Zusammenhang mit
diesem Symbol, um Verletzungen zu vermeiden. Wenn es am Gerät angebracht ist, beachten Sie
die Betriebs- oder Sicherheitsinformationen im Handbuch.
Dieses Symbol weist auf die Gefahr eines elektrischen Schlages hin, der tödlich sein kann.
Dieses Symbol zeigt das Vorhandensein von Geräten an, die empfindlich auf elektrostatische
Entladung reagieren. Es müssen Vorsichtsmaßnahmen getroffen werden, um die Geräte nicht zu
beschädigen.
Dieses Symbol weist darauf hin, dass das Instrument an Wechselstrom angeschlossen werden
muss.
Elektrogeräte, die mit diesem Symbol gekennzeichnet sind, dürfen nicht im normalen öffentlichen
Abfallsystem entsorgt werden. Senden Sie Altgeräte an den Hersteller zurück. Dieser entsorgt die
Geräte ohne Kosten für den Benutzer.
Produkte, die mit diesem Symbol gekennzeichnet sind, enthalten toxische oder gefährliche
Substanzen oder Elemente. Die Ziffer in diesem Symbol gibt den Umweltschutzzeitraum in Jahren
an.
Installation
Die Sonden 8350 können in allen Positionen installiert werden.
• Montage durch Einfügen : direktes Anschrauben oder Flansch
• Eintauch-Montage : Eintauch-Länge (0.5, 1, oder 1.5 m) mit festem oder anpassbarem Flansch
oder Clip.
10 Deutsch
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3
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