DOZ-7600 Online Dissolved Ozone Analyzer

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DOZ-7600 Online Dissolved Ozone Analyzer and Controller

Product ID：ZXYFX009

Price: Please inquire PDF Format

Supply Ability:200SETS/MON

Port:SHENZHEN

Product Introduction
Other information

Model NumberDOZ-7600

Brand NameNNNUOBUO

Payment TermsTT，PAYPAL，Alibaba.com Pay

DOZ-7600 Online Dissolved Ozone Analyzer and Controller

Product Overview
The DOZ-7600 Online Dissolved Ozone Analyzer is a microprocessor-based instrument designed for continuous measurement and control of dissolved ozone in water. It uses a non-membrane constant-potential sensor that does not require membrane or reagent replacement, providing fast response, stable measurement, and simplified maintenance.
The instrument supports automatic or manual temperature compensation and simultaneously displays ozone concentration, temperature, output current, and other measurement information. With optional RS-485 communication, isolated 4–20 mA output, and dual ON/OFF relay contacts, the DOZ-7600 can be integrated into water treatment monitoring and control systems.
It is suitable for drinking water treatment plants, drinking water distribution networks, swimming pools, cooling circulating water, and other water treatment applications requiring continuous dissolved ozone monitoring.

Key Features
• Non-membrane constant-potential sensor eliminates routine membrane and reagent replacement.
• Wide dissolved ozone measurement range of 0–20.00 mg/L (ppm) with 0.01 mg/L resolution.
• Manual or automatic temperature compensation over 0–60°C.
• Large dot-matrix LCD simultaneously displays ozone concentration, temperature, output current, and range-overrun information.
• Isolated 4–20 mA output and optional RS-485 communication for process integration.
• Two ON/OFF relay contacts provide high- and low-point alarm/control functions with adjustable hysteresis.
• Watchdog and power-failure protection improve long-term operating reliability.

Working Principle
The DOZ-7600 uses a non-membrane constant-potential electrochemical sensor to measure dissolved ozone in water. The sensor generates an electrical signal related to the ozone concentration in the sample. The microprocessor processes the sensor signal and converts it into a displayed dissolved ozone value.
Because the sensor design does not use a conventional membrane or reagent system, routine replacement of membranes and reagents is reduced. Temperature compensation can be performed manually or automatically to improve measurement accuracy under changing water temperatures.
The instrument can also convert the measured ozone concentration into a 4–20 mA process signal and use relay outputs for high/low alarm or control functions.

Technical Specifications

Parameter	Specification
Instrument Type	Online dissolved ozone analyzer and controller
Measurement Parameter	Dissolved ozone
Ozone Measurement Range	0–20.00 mg/L (ppm)
Temperature Measurement Range	0–60°C
Ozone Resolution	0.01 mg/L
Temperature Resolution	0.1°C
Ozone Accuracy	Better than ±1% or ±0.01 mg/L
Temperature Accuracy	±0.5°C
Temperature Compensation	Manual / automatic, 0–60°C
Sensor Type	Non-membrane constant-potential sensor
Relay Outputs	2 × ON/OFF relay contacts
Relay Functions	High-point and low-point alarm/control
Relay Load	10 A, 220 VAC
Relay Hysteresis	Adjustable
Analog Output	Isolated 4–20 mA
Communication	Optional RS-485, partially compatible with Modbus protocol
Output Load	<500 Ω (0–10 mA); <750 Ω (4–20 mA)
Input Impedance	≥1 × 10¹² Ω
Operating Temperature	0–60°C
Relative Humidity	≤90% RH
Power Supply	220 VAC ±10%, 50/60 Hz
Dimensions	96 × 96 × 156 mm
Panel Cutout	91 × 91 mm
Weight	0.9 kg

Applications
• Drinking water treatment plants for continuous dissolved ozone monitoring.
• Drinking water distribution networks.
• Swimming pool water treatment and ozone disinfection systems.
• Cooling circulating water systems.
• Water purification and treatment engineering.
• Process monitoring and control systems requiring continuous dissolved ozone measurement.

Applicable Standards
No specific national or international standard is identified in the supplied product information. Applicable water quality and ozone monitoring standards should be selected according to the intended application and local regulatory requirements.

Comparison

Feature	DOZ-7600 Online Dissolved Ozone Analyzer	Conventional Reagent-Based Ozone Testing
Measurement Mode	Continuous online measurement	Typically intermittent/manual
Sensor Technology	Non-membrane constant-potential sensor	Commonly reagent- or membrane-based
Membrane Replacement	Not required	May be required depending on sensor
Reagent Replacement	Not required for sensor measurement	May require reagents
Measurement Range	0–20.00 mg/L	Depends on test method
Temperature Compensation	Manual / automatic	Depends on method
Analog Output	Isolated 4–20 mA	Often unavailable or requires additional equipment
Relay Control	2 ON/OFF relay contacts	Usually requires separate controller
Communication	Optional RS-485	Depends on system
Continuous Process Monitoring	Yes	Generally limited

The DOZ-7600 is designed for continuous online process monitoring and control, while conventional reagent-based methods are generally more suitable for laboratory or periodic manual testing.

FAQ
Q1: What does the DOZ-7600 measure?
It continuously measures dissolved ozone concentration in water and can also measure temperature.
Q2: What is the measurement range of the DOZ-7600?
The dissolved ozone measurement range is 0–20.00 mg/L (ppm), with a resolution of 0.01 mg/L.
Q3: Does the DOZ-7600 require membrane or reagent replacement?
The instrument uses a non-membrane constant-potential sensor, so routine membrane and reagent replacement associated with conventional systems is not required.
Q4: Does the analyzer compensate for temperature?
Yes. Manual and automatic temperature compensation are available over a range of 0–60°C.
Q5: Can the DOZ-7600 be connected to a control system?
Yes. It provides an isolated 4–20 mA output, and RS-485 communication is available as an option.
Q6: Does the instrument provide relay control?
Yes. Two ON/OFF relay contacts are provided for high- and low-point alarm or control functions. Relay hysteresis can be adjusted to reduce frequent switching.
Q7: What applications is the DOZ-7600 suitable for?
It is suitable for drinking water treatment, water distribution systems, swimming pools, cooling circulating water, and other water treatment processes requiring continuous dissolved ozone monitoring.
Q8: What is the power supply requirement?
The analyzer operates on 220 VAC ±10%, 50/60 Hz.
Q9: Is the DOZ-7600 suitable for continuous unattended operation?
Yes. Its microprocessor-based design, watchdog function, power-failure protection, automatic temperature compensation, and process outputs support long-term online operation.

FAQ
Q1: What does the DOZ-7600 measure?
It continuously measures dissolved ozone concentration in water and can also measure temperature.
Q2: What is the measurement range of the DOZ-7600?
The dissolved ozone measurement range is 0–20.00 mg/L (ppm), with a resolution of 0.01 mg/L.
Q3: Does the DOZ-7600 require membrane or reagent replacement?
The instrument uses a non-membrane constant-potential sensor, so routine membrane and reagent replacement associated with conventional systems is not required.
Q4: Does the analyzer compensate for temperature?
Yes. Manual and automatic temperature compensation are available over a range of 0–60°C.
Q5: Can the DOZ-7600 be connected to a control system?
Yes. It provides an isolated 4–20 mA output, and RS-485 communication is available as an option.
Q6: Does the instrument provide relay control?
Yes. Two ON/OFF relay contacts are provided for high- and low-point alarm or control functions. Relay hysteresis can be adjusted to reduce frequent switching.
Q7: What applications is the DOZ-7600 suitable for?
It is suitable for drinking water treatment, water distribution systems, swimming pools, cooling circulating water, and other water treatment processes requiring continuous dissolved ozone monitoring.
Q8: What is the power supply requirement?
The analyzer operates on 220 VAC ±10%, 50/60 Hz.
Q9: Is the DOZ-7600 suitable for continuous unattended operation?
Yes. Its microprocessor-based design, watchdog function, power-failure protection, automatic temperature compensation, and process outputs support long-term online operation.