Oakton 300 Series User manual

300 series
HANDHELD WATER QUALITY METERS

I
CODE:M0038133200828210GZ0000581084
November, 2019 2019 Oakton Instruments.
■Preface
This manual describes the operation of the following instrument.
Be sure to read this manual before using the product to ensure proper and safe operation
of the product. Also, safely store the manual so it is readily available whenever necessary.
Product specifications and appearance, as well as the contents of this manual are subject
to change without notice.
●Warranty and Responsibility
Oakton Instruments. warrants that the product shall be free from defects in material and
workmanship and agrees to repair or replace free of charge, at option of Oakton
Instruments., any malfunctioned or damaged product attributable to responsibility of
Oakton Instruments. for a period of Three (3) years from the delivery unless otherwise
agreed in a written statement. In any one of the following cases, none of the warranties set
forth herein shall be extended:
• Any malfunction or damage attributable to improper operation
• Any malfunction attributable to repair or modification by any person not authorized by
OAKTON Instruments.
• Any malfunction or damage attributable to the use in an environment not specified in
this manual
• Any malfunction or damage attributable to violation of the instructions in this manual or
operations in the manner not specified in this manual
• Any malfunction or damage attributable to any cause or causes beyond the
reasonable control of Oakton Instruments. such as natural disasters
• Any deterioration in appearance attributable to corrosion, rust, and so on
• Replacement of consumables
OAKTON INSTRUMENTS. SHALL NOT BE LIABLE FOR ANY DAMAGES RESULTING
FROM ANY MALFUNCTIONS OF THE PRODUCT, ANY ERASURE OF DATA, OR ANY
OTHER USES OF THE PRODUCT.
●Trademarks
Microsoft, Windows are registered trademarks or trademarks of Microsoft Corporation in
the United States and other countries.
Other company names and brand names are either registered trademarks or trademarks of
the respective companies. (R), (TM) symbols may be omitted in this manual.
Brand: OAKTON
Series name: OAKTON 300series Handheld Water Quality Meter
Model: 350, 360, 380

Regulations
II
■Regulations
●EU regulations
●Conformable Directive
This equipment conforms to the following directives and standards:
●Information on Disposal of Electrical and Electronic Equipment and
Disposal of Batteries and Accumulators
The crossed out wheeled bin symbol with underbar shown on the product or accompanying
documents indicates the product requires appropriate treatment, collection and recycle for
waste electrical and electronic equipment (WEEE) under the Directive 2002/96/EC, and/or
waste batteries and accumulators under the Directive 2006/66/EC in the European Union.
The symbol might be put with one of the chemical symbols below. In this case, it
satisfies the requirements of the Directive 2006/66/EC for the object chemical.
This product should not be disposed of as unsorted household waste.
Your correct disposal of WEEE, waste batteries and accumulators will contribute to
reducing wasteful consumption of natural resources, and protecting human health and the
environment from potential negative effects caused by hazardous substance in products.
Contact your supplier for information on applicable disposal methods.
EMC: EN61326-1
Class B, Basic electromagnetic environment
RoHS: EN50581
9. Monitoring and control instruments
Warning: This product is not intended for use in industrial environments. In an indus-
trial environment, electromagnetic environment effects may cause the
incorrect performance of the product in which case the user may be
required to take adequate measures.

Regulations
III
●Authorised representative in EU
Cole-Parmer UK
9 Orion Court, Ambuscade Road
Colmworth Business Park
St Neots
Cambridgeshire
PE19 8YX, United Kingdom
Phone: [phone]
Fax: [phone]
●FCC rules
●FCC Compliance Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation. 47 CFR 15 subpart B. This product is considered an exempt device per
clause §15.103/§2.1202.
Note
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense.
Any changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
Responsible Party for FCC matter
Oakton Instruments
625 East Bunker Court,
Vernon Hills, IL, 60061, USA
Tel: [phone]

For Your Safety
IV
■For Your Safety
●Hazard classification and warning symbols
Warning messages are described in the following manner. Read the messages and follow
the instructions carefully.
●Hazard classification
●Warning symbols
This indicates an imminently hazardous situation which, if
not avoided, will result in death or serious injury. This is to
be limited to the most extreme situations.
This indicates a potentially hazardous situation which, if
not avoided, could result in death or serious injury.
This indicates a potentially hazardous situation which, if
not avoided, may result in minor or moderate injury. It may
also be used to alert against unsafe practices.
Without safety alert indication of hazardous situation
which, if not avoided, could result in property damage.
Description of what should be done, or what should be followed
Description of what should never be done, or what is prohibited

For Your Safety
V
●Safety precautions
This section provides precautions for using the product safely and correctly and to prevent
injury and damage. The terms of DANGER, WARNING, and CAUTION indicate the degree
of imminency and hazardous situation. Read the precautions carefully as it contains
important safety messages.
●Instrument and Sensor
●Battery
WARNING
Do not disassemble or modify the instrument. Otherwise, it may heat up or
be ignited resulting in a fire or an accident.
CAUTION
Harmful chemicals
Some electrodes are used with hazardous standard solutions. Handle them
with care. The internal solution of pH electrode is highly concentrated
potassium chloride (3.33 mol/L KCl). If the internal solution comes in contact
with the skin, wash it off immediately. If it gets into the eyes, flush with plenty
of water and then consult a doctor.
Broken glass
Broken glass may cause injury. The outer tube and tip of an electrode are
made of glass. Handle them with care.
Do not use the photo jack under wet or humid conditions. Otherwise, it may
cause a fire, electric shock, or breakage.
WARNING
Keep batteries out of reach of children. If someone accidentally swallows a
battery, consult a doctor immediately.
If alkaline fluid from a battery gets into the eyes, do not rub the eyes, rinse
with clean water immediately and then consult a doctor.
Contact with alkaline fluid could cause blindness.
Do not put batteries in a fire, expose to heat, disassemble or remodel.
Doing so could case fluid leakage, overheating or explosion.

Product Handling Information
VI
■Product Handling Information
●Operational precautions (instrument)
• Only use the product including accessories for their intended purpose.
• Do not drop or physically impact on the instrument.
• The instrument is made of solvent-resistant materials but that does not mean it is
resistant to all chemicals. Do not expose the instrument in strong acid or alkali
solution, or wipe with such solution.
• If the instrument is dropped into water or gets wet, wipe it using soft cloth. Do not heat
to dry it.
• The instrument has a dust-proof and waterproof structure i.e., the instrument does not
malfunction even when immersed in water of 1 m depth for 30 minutes. This does
guarantee non-destructive, trouble-free, dust-proof, and waterproof performance in all
situations.
• When replacing the batteries or when a serial cable connected, the instrument does
not have the dust-proof and waterproof performance. The dust-proof and waterproof
performance is maintained only when the covers are attached correctly.
• After replacing the batteries or removing the serial cable connected, make sure that
the waterproof gasket attached to the cover is not deformed or discolored, or has
foreign matter adhering to it. If the waterproof gasket is deformed, discolored or has
foreign matter adhering to it, dust could get inside, water leaks could occur that could
lead to instrument malfunction.
• To disconnect an electrode or serial cable, hold the connector and pull it off. If you pull
at the cable, it may cause breakage.
• The phono jack communication between the instrument and a personal computer
(referred to as PC in the rest of this document) may fail because of environmental
conditions, such as electromagnetic noise.
• Do not replace the batteries in a dusty place or with wet hands. Dust or moisture could
get inside the instrument, possibly causing instrument malfunction.
• Do not use an object with a sharp end to press the keys.
• If the power supply is interrupted while measurement data is being saved in the
instrument, the data could be corrupted.
• A Ni-MH rechargeable battery can be used in this instrument.

Product Handling Information
VII
●Operational precautions (battery)
• Do not short circuit a battery.
• Position the + and – side of the battery correctly.
• When the battery has depleted or the instrument will not be used for a long time,
remove the batteries.
• Of the specified battery types, make sure to use two batteries of the same type.
• Do not use a new battery together with a used battery.
• Do not use a fully charged nickel-metal hydride battery together with a partially
charged battery.
• Do not attempt to charge a non-rechargeable battery.
●Environmental conditions for use and storage
• Temperature: 0°C to 45°C
• Humidity: under 80% relative humidity and free from condensation
Avoid the following conditions.
• Strong vibration
• Direct sunlight
• Corrosive gas environment
• Locations close to an air-conditioner
• Direct wind
●Transportation
When transporting the instrument, repackage it in the original package box. Otherwise, it
may cause instrument breakage.
●Disposal
When disposing of the product, battery and standard solutions used for the calibration
follow the related laws and regulations of your country for disposal of the product.

Contents
VIII
Product Overview................................................................. 1
■Package Content .................................................................1
■Key Features ........................................................................3
■Product components...........................................................4
■Display..................................................................................5
■Keypad operation ................................................................7
Basic operations .................................................................. 8
■Turnig on the instrument ....................................................8
■Using the External Power Supply ......................................9
■Connecting sensors ............................................................9
■Operation mode .................................................................10
■Changing the measurement parameter...........................11
■Changing the magnifing measurement display..............11
■Viewing Calibration data...................................................12
Calibration .......................................................................... 14
■pH Calibration ....................................................................14
■EC Calibration....................................................................16
■Salinity Calibration ............................................................18
■DO Calibration ...................................................................20
■Temperature calibration....................................................22
■Multi auto calibration ........................................................24
Measurement ...................................................................... 26
■measurement .....................................................................26
Data ..................................................................................... 27