Specifications

Glossary
nCyanuric Acid – Please refer to page 86 of this
catalogue.
nDAS or Data Acquisition Software connects the
bench meter using a RS232C communications
cable and can be used to control the meter from
a PC. This software is available with the benchtop
series 1100/2100, 1500 and 6000. The software also
provides Data Acquisition functions and allows
data from the meter to be captured and stored for
processing on a PC. Other features of the software
are the ability to zoom in to certain areas of the
graph, set the length of time to capture data, set
meter settings like temperature units, pH and
mV alarm limits, calibration reminders, resolution
and many other parameters.Updated versions are
available on the website www.eutechinst.com
nDIN or Deutsches Insitut für Normung eV is a
German national organization for standardization.
A DIN buffer set usually refers to the 1.09, 3.06,
4.65, 6.79, 9.23, and 12.75 pH. Selected Eutech
meters such as the CyberScan pH 310 is capable
of up to 6 points of calibration if the DIN buffer
standard is chosen. A DIN connector is a connector
that conforms to one of the many standards defined
by DIN. Eutech meters that feature the DIN
connector include the CyberScan bench series
1500 and 6000.
nDPD Method is US EPA accepted for reporting
drinking water analyses (Free and Total Chlorine)
and wastewater analyses (Total Chlorine only). Please
refer to the “Standard methods for the Examination
of Water and Wastewater” and US EPA method
330.5 for wastewater and Standard Method 4500-Cl
G for drinking water for more information.
nDO or Dissolved Oxygen – Please refer to page 56
of this catalogue.
nDouble-Junction Protection in electrodes
is necessary to prevent electrode poisoning.
Reference junction poisoning is inevitable
especially in cases where there is sulphide content
in the sample. Sulphide is known to attack silver
in the reference and shorten the electrode’s useful
life. With the double junction protection, the
‘poison’ takes longer to reach the reference junction
hence extending the electrode’s useful life. The
new range of large display waterproof pocket
testers feature double junction electrodes for long
lasting performance. Please refer to page 16, 100
and 101 of this catalogue.
nElectrode Diagnosis provides useful information
on electrode condition and characteristics after
each calibration.
nEMC or Electromagnetic Compliance is one of
the CE Directives specified for electrical products.
All Eutech products with CE-certification adhere
to the EMC Directive. For more information, please
refer to www.cemarking.net
nEPA or Environmental Protection Agency leads the
environmental science, research, education and
assessment efforts in the US. For more information,
please visit www.epa.gov
nFormazin Standards – Formazin was first
established by the US Environmental Protection
Agency (See EPA) as a Turbidity standard in 1926.
However, its importance as a standard has been
relegated due to its many shortcomings, one of
which being that one of the chemicals which
formazin is derived from, hydrazine sulphate, is
carcinogenic. Eutech’s Turbidity meters use a safe,
non-toxic, non-carcinogenic alternative to formazin
standards which can be used for calibration directly
without mixing or dilution.
nGalvanic Cell – Please refer to page 56 of this
catalogue.
nGLP or Good Laboratory Practices refers to
regulations that are observed to ensure high quality
experimental standards and reliable data.
nHVAC stands for Heating, Ventilation and Air
Conditioning System.
nHCl is the chemical formulation of Hydrogen
Chloride that is a highly corrosive and toxic
colorless gas that forms white fumes on contact
with humidity. These fumes consist of hydrochloric
acid which forms when hydrogen chloride
dissolves in water. Hydrogen chloride gases as
well as hydrochloric acid are important chemicals
in chemistry, science, technology, and industry. A
0.1 M HCl can be prepared as 1 % pepsin solution
to break down any protein deposits on an electrode.
For more information on electrode cleansing, please
refer to page 103 of this catalogue.
nIP stands for ‘Ingress Protection’. An IP number is
used to specify the environmental protection of
enclosures around electronic equipment. These
ratings are determined by specific tests. The IP
number is composed of two numbers, the first
referring to the protection against solid objects
and the second against liquids. The higher the
number, the better the protection. Eutech products
such as the CyberScan waterproof series and
waterproof testers have IP67 housing. The first digit
‘6’ indicates total protection against dust and second
digit ‘7’ protects against the effects of immersion
between 15 cm and 1 m.
nIrDA Communications – IrDA stands for Infrared
Data Association, a group of manufacturers who
developed a standard for transferring data via
infrared light waves; a secure wireless link that
allows the meter to be connected to a computer or
printer without the help of cables.
nISO 7027 is the water quality standard measured
in terms of Turbidity determined by the International
Organisation for Standardisation. For more
information on ISO, please refer to the website
www.iso.org Eutech Turbidimeters TN 100 and TB
1000 (infrared light source models) comply with the
ISO 7027 standards.
nkPA or Kilopascal refers to a unit of pressure. 1 kPa
is approximately the pressure exerted by a 10-g
mass resting on a 1-cm
2
area. 101.3 kPa = 1 atm.
There are 1000 pascals in 1 kilopascal.
nKCl refers to the Chemical Compound Potassium
Chloride which is a metal halide composed of
potassium and chlorine. KCl is used in medicine,
scientific applications and food processing. A heated
diluted KCl can be used to unclog a reference
junction. For more information on electrode cleansing,
please refer to page 103 of this catalogue.
nLSD or Least Significant Digit refers to the right-most
active digit of a digital display.
nMTC or Manual Temperature Compensation is an
alternative method for temperature compensation
through the manual input of sample temperature
value. ATC is more practical in most applications.
nMultiple-Point Calibration ensures the highest
accuracy across the full measurement range.
nNIST or National Institute of Standards and
Technology is a non-regulatory agency of the
United States Department of Commerce’s
Technology Administration. The institute’s
mission is to develop and promote measurement,
standards,and technology to enhance productivity,
facilitate trade, and improve the quality of life.
The NIST buffer standards usually refer to pH 1.68,
4.01, 6.86, 9.18, and 12.45. For more information,
please visit www.nist.gov
nAg/AgCl – Silver/silver chloride reference electrode
is good for general purpose applications with a
wide temperature range of -5 to 110 °C.
nATC or Automatic Temperature Compensation
automatically corrects the measured value based
on the temperature of the solution (with use of
temperature sensor).
n Auto-Buffer Recognition identifies and
ensures correct pH buffer values are being used
during calibration.
nAuto-CAL or Automatic Calibration frees users
from cumbersome fine adjustment or manual
selection of desired standards/buffer values in
calibration routine.
nAuto-Data Logging allows measured or stored
data sets being transferred seamlessly into memory
or external peripherals at preset time interval or
whenever readings stabilise.
nAuto-Ranging Capability scans and switches to
the appropriate measurement range.
nBarometric Pressure Compensation
compensates oxygen solubility for changes in
Barometric Pressure.
nBi-Directional RS232C Linkup provides
two-way RS232C communication between meter
and computer via a cable to remotely control and
manage meter operation.
nBNC is known as British Naval Connector or Bayonet
Nut Connector. This connector is used to join
segments of coaxial cable.
nBOD – Please refer to page 57 of this catalogue.
nCAL-Due Prompt reminds user to calibrate the
meter at set regular intervals.
nCE-Certification or CE Marking is a conformity
marking consisting of the letters “CE”. CE is an
abbreviation for ‘Conformité Européenne’, French
for ‘European Conformity’. The CE Marking indicates
that the product it is affixed to conforms to all
relevant essential requirements and other applicable
provisions that have been imposed upon it by
means of European directives, and that the product
has been subject to the appropriate conformity
assessment procedure(s). For more information,
please refer to website at www.cemarking.net
nCell Constant or k is the ratio of the distance
between the two metal plates and surface area of
the two metal plates during measurement.
n21 CFR Part 11 – A set of criteria set forth
by the FDA which qualifies electronic records
and signatures to be equivalent in reliability
to paper records and handwritten signatures
on paper. For more information, please
refer to the “Code of Federal Regulations” at
www.fda.gov.
nChlorine – Please refer to page 86 of this
catalogue.
nChlorine Dioxide – Please refer to page 86 of
this catalogue.
nCOD – Please refer to page 57 of this catalogue.
nColorimetry – Please refer to page 86 of this
catalogue.
nConductivity – Please refer to page 36 of this
catalogue.
Glossary
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Glossary