Jual Turbidity Meter dan Conductivity
Meter 0856 2476 9005
Mengenal Turbidity Meter.
Turbidity meter merupakan alat pengujian air limbah yang
berfungsi untuk mengukur tingkat kekeruhan air. Turbidity meter disebut juga
alat ukur kekeruhan air. Seperti kita ketahui ada banyak penyebab tercemarnya
air di sekitar kita, misalnya limbah air rumahtangga, industri, pertanian,
peternakan, dll. Untuk itu kita memerlukan sebuah alat yang bisa membaca
tingkat kekeruhan air yang akan kita teliti, alat inilah yang kita kenal dengan
nama Turbidity Meter.
Adapun prinsip kerja dari turbidity meter ini adalah
kira-kira sebagai berikut : Turbidity meter ini akan memancarkan cahaya pada
sampel air yang akan diteliti dimana kemudian cahaya itu akan diteruskan dan dipantulkan sehingga menembus
media atau sampel tersebut, dari situ turbidity meter akan mengukur dan
mentransfer kedalam bentuk angka yang merupakan tingkat kekeruhan.ah penting
dalam bidang medis, biologi, kimia, ilmu makanan, oseanografi, dan
bidang-bidang lainnya.
Apa yang Dimaksud dengan Turbidity ?
Turbidity atau yang sering disebut dengan kekeruhan
disebabkan oleh adanya material yang tersuspensi.
Nilai Unit yang digunakan sesuai dengan Standar ISO adalah
FNU ( Formazine Nephelometric Unit ) sedangkan EPA biasanya menggunakan NTU (
Nephelometric Turbidity Unit ).
Dua metoda lain yang sering digunakan untuk mengukur
turbidity atau kekeruhan adalah JTU ( Jackson Turbidity Unit ) dan Silica Unit
( mg/L Si02 ).
Conductivity/ TDS Meters
Definition of Conductivity
Electrical Conductivity is the ability of a solution to conduct an
electrical current. Current flow in liquids carried by ions is different
from metals, where is carried by free electrons. Ions are formed
when a solid such as salt is dissolved in a liquid to form electrical
components having opposite electrical charges. The sodium
chloride separates to form Na+ and Cl- ions. All ions present in the
solutions contribute to the current flowing through the sensor and
therefore, contribute to the conductivity measurement. Conductivity
can be used as a measure of the concentration of ions present in
the sample.
Conductivity Units
Electrical conductivity is the reciprocal of electrical resistivity.
Electrical resistivity uses the unit of ohm meter or © x m. Rather than
use the units © 1 x m 1, in 1971 the unit “ siemens” ( symbolized by the capital letter S) was adopted by the General Conference on
Weights and Measures as an SI derived unit.
Electrical conductivity is the reciprocal of electrical resistivity.
Electrical resistivity uses the unit of ohm meter or © x m. Rather than
use the units © 1 x m 1, in 1971 the unit “ siemens” ( symbolized by the capital letter S) was adopted by the General Conference on
Weights and Measures as an SI derived unit.
The unit for electrical conductivity becomes siemens per meter. The
siemens unit is named after Werner von Siemens, the 19th century
German inventor and entrepreneur in the area of electrical
engineering. Previously to the siemens per meter unit, mho/ cm was
used to measure conductivity, where the unit “ mho” is a reciprocal
ohm. The “ mho” is the “ ohm” spelled backwards. Because of the
history of conductivity, micromho/ cm and millimho/ cm is commonly
translated to microsiemens/ cm and millisiemens/ cm because they
correspond one-to-one.
The unit of measurement commonly used is one millionth of a
Siemens per centimeter ( micro-Siemens per centimeter or ¼ S/ cm) .
When measuring more concentrated solutions, the units are
expressed as milli-Siemens/ cm ( mS/ cm) . For ease of expression,
1000 ¼ S/ cm are equal to 1 mS/ cm. Often times conductivity is
expressed simply as either micro or milli Siemens.
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CV ADY WATER
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