Dual-channel analyzer of dissolved oxygen is designed for measuring dissolved oxygen
concentration and temperature of the analyzed liquid. The analyzer is a two-channel measuring tool consisting of
one or two optical sensors of dissolved oxygen (VisiFerm DO and VisiTrace DO) and a measuring instrument for panel mounting.
Cable length from the sensor to the device can reach 100 m.
Advantages of dissolved oxygen optical sensors VisiFerm DO и VisiTrace DO:
no regular calibration and maintenance required;
no requirements for the flow of the measured liquid;
low sensitivity to pollution and СO2;
short response time without polarization;
robust construction and easy maintenance.
The VisiFerm DO sensor family allows you to select the appropriate cap for each application.
The sensors are designed for steam sterilization, autoclaving and CIP-washing. Sensors VisiFerm DO requires
less maintenance, because Do not have a mechanically sensitive membrane or corrosive electrolyte.
The design of the VisiFerm DO sensors allows to withstand pressure surges and pulses.
Sensor VisiTrace DO is designed to measure the concentration of O2 in the ranges with low ppb (boiler water).
Sensors VisiTrace DO withstands exposure to chlorine and chlorine dioxide for a long time.
Read more about dissolved oxygen sensors VisiFerm DO и VisiTrace DOhere
The analyzer has a user-friendly menu and provides a digital and graphical indication of
measured parameters, with alarms when the measured parameter outside specified values, and to
converting the measured value into a unified output DC signal and communication with the computer
via digital interface RS-485 (Modbus ModBus RTU communication protocol), and archiving
measured values with a 1-year archiving time.
Using the indicator and 4-buttons control panel, the user can view and modify
configuration settings of the analyzer:
assignment of units, number of channels, viewing in GUI mode (trends);
enable and configure the program's settings, filter;
view and change setpoints, hysteresis, delay and logic relays alarm;
The analyzer sensor may have a nozzle for automatic air cleaning.. Scope of application: automated control systems,
control and regulation by technological processes in pharmaceutical, biotechnological,
heat power and other industries, municipal and industrial systems of water purification,
at control of quality of drinking water, at the enterprises of aquacultures.
Dissolved oxygen concentration measuring ranges:
(0..20,00) mg/dm3 (0..200) %
- sensor VisiFerm DO
4 ppb - 25 ppm (DO)
- sensor VisiTrace DO
0 - 2000 ppb
Basic percentage error value limit:
- for upper limits of measurement ranges not more than 2000 µg/dm3
±(2,5+0,035·С), μg/dm3, where C is the measured value, μg/dm3
- for upper limits of measurement ranges from 2000 to 20000 μg/dm3
±(25+0,035·С), μg/dm3, where C is the measured value, μg/dm3