Water analyzer

• pH,/ mV / ORP

• Conductivity /TDS Salinity

• Dissolved Oxygen

• Temperature

• Colorimetric - Abs, %T & Conc.

• Turbidity

The instrument measures the pH of the solution under test using a glass & reference electrode, combined pH electrode or the Oxidation Reduction Potential (ORP) using Calomel/Platinum Electrodes. Calibration of the instrument is done with standard buffer solution (7.0 pH and 4.0 or 9.2 pH). It can also be used as a general purpose milli voltmeter.

The instrument measures the conductivity, estimates TDS (Total Dissolved Solids) and Salinity of the solution under test using a conductivity cell. Calibration of the instrument is done with standard KCI solution. After doing cell calibration with KCI solutions, Salinity calibration is done by using standard salinity solutions. The auto ranging and automatic recognition of cell-constant makes the operation of the unit very easy.

The instrument measures estimation of dissolved oxygen in water. Dissolved oxygen is measured in ppm over a range of 0 to 20 ppm with 0.1 ppm resolution. The dissolved oxygen measurement is automatically temperature compensated for solubility of oxygen in water and permeability of probe membrane. The probe supplied with the unit is a special Clark type membrane covered polarographic sensor. The thin permeable membrane stretched over the sensor isolates the sensor elements from the environment, but allows oxygen to enter. When a polarizing voltage is supplied across the sensor, oxygen that has passed through the membrane reacts at the cathode, causing a current to flow.

The instrument measures the temperature of the solution under test using a temperature (PT 100) sensor.

The instrument measures the absorbance, Transmittance or concentration in colorimetric mode. A wide wavelength range 400 to 700 nm, is covered with the help of 3 three optical filters.

The instrument measures the turbidity of the solutions (water). The principle of operation of this instrument is based on the well known law of Tyndall effect. A beam of light passing through turbid liquid being tested, scatters the light which, in turn, is collected at right angles by photocell.
The amount of scattered light is proportional to the turbidity of the solution under test.

Calibration of the instrument is done with standard solutions. Provision for storing calibration of all appropriate modes is provided with the help of battery backup. This data can be further used for measuring the unknown, without re-calibrating the instrument even after switching it off. Active measurement mode is indicated by LEDs.

The unit is equipped with a user friendly software. A 2 line 20 character alphanumeric LCD Display along with 14 keys enable the user to select, set and operate the unit with ease. All measurement results are available on the display. Centronic interface is provided for printing the measurements taken. The unit has an ergonomically designed panel having soft keys for operation. Mains or Battery operation is available.