Specifications

Glossary
page | 98
nReplatinising is necessary when the
platinum-black layer of the
Conductivity
sensor wears o over time. The
Conductivity
section of the sensor consists of two
platinum plates or wires that are plated
with a layer of “platinum-black”. Usually this
is a relatively
soft layer and is required for
stable, accurate measurements. In time,
the platinum-black layer may wear off
in some applications and the sensor will
require replatinising.
nResistivity – A measure of how strongly a
material opposes the ow of electric current.
A low
Resistivity indicates a material that
readily allows the movement of electrical
current charge.
nRJ45 or Registered Jack 45 is a physical
interface often used for terminating twisted
pair type cables. “RJ” stands for Registered
Jack which is part of the United States Code
of Federal Regulations. It has eight “pins”
or electrical connections per connector.
Common uses include internet and Ethernet
cables. The CyberScan Series 6000 offers
RJ45 connector for internet and Ethernet
communication capabilities to conduct
on-the-spot online research and access
global email account.
nRS232 – RS232 stands for Recommended
Standard-232, A TIA/EIA standard for serial
transmission between computers and
peripheral devices (modem, mouse, etc.).
Using a 25-pin DB-25 or 9-pin DB-9 connector,
its normal cable limitation of 50 feet can be
extended to several hundred feet with
high-quality cable.
nSalinity – Please refer to page 30 of
this catalogue
.
nSalinity Correction compensates the
variations in oxygen solubility due to salt
concentration in the sample.
nSelf-Diagnostic Messages prompt
and guide users with error message
codes or graphical icons for easy
meter troubleshooting.
nSoft Keys – Soft keys are located close
to the screen-readouts that display the
functions selected when the keys are
pressed; commonly used on small devices
with limited space such as handphones,
PDAs and handheld meters.
nSOUR or Specific Oxygen Uptake Rate
indicates biological activity of microbes
in the wastewater treatment process and
the load placed on them. SOUR is the
relationship between oxygen uptake and
the amount of solids. SOUR values are
given in mg/hr/g.
nStab il ity Func tio n ave rag e s a n d
displays indicator or icon whenever
readings stabilise.
nTDS or Total Dissolved Solids – Please refer
to page
30 of this catalogue.
nTDS Conversion Factor is a factor for
converting
Conductivity to TDS value to best
suit the specic sample being measured
(e.g. KCl = 0.5, 442 = 0.67 @ 25 °C).
nTemperature Coefficient indicates the
temperature influence in
the chemical
equilibrium (eg.disassociation) of the solution
due to non-linearity of intrinsic salt/chemical
property varies from one sample to another
(typically 2.1
%/°C at 25 °C).
nTemperature Compensation is necessary
as most electrochemical parameters (i.e.
pH,
Conductivity, DO) are temperature
dependent and most applications require
some form of temperature compensation
to ensure standardized measured values.
Please refer to the definitions for ATC
and MTC.
nThermometry – Please refer to page 64
of this catalogue
.
nTurbidity – Please refer to page 56
of this catalogue
.
nUSEPA Method 180.1 – A regulatory
method set by US EPA which requires
the following to be included in the
design of Turbidity meters: 1. Primary
d e t e c t o r f o r n e p h e l o m e t r i c ( 9 0
degree) measurement; 2. Light source
tungsten filament lamp (white light);
3. Spectral response peak for the detector
between 400 and 600 nm, the primary
wavelengths of light.
Trademarks Used:
pHTestr, ECTestr, TDSTestr and ORPTestr
are registered trademarks of
Cole-Parmer Instrument Co., an associate
company of Eutech Instruments.
Windows® is a registered trademark of
Microsoft Corporation in the United States
and other countries.
Teon® is a registered trademark of
E.I. Dupont deNemours,
Wilmington DE, USA.
Kynar® is a registered trademark of
Atona Chemicals, Inc
Valox® is a registered trademark of
General Electric Company (G.E.)
Warranty
Eutech Instruments warrants
its instruments to be free from
manufacturing defects as follows:
pocket testers for 2 years, handheld
and bench meters for 3 years, and
electrodes/sensors for 6 months
(unless otherwise specied).
Certication
All Eutech products are CE
certied to comply with global
standards for electromagnetic
emission and interference.