NB-128 Constant-Voltage Residual Chlorine & Ozone Electrode Probe

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NB-128 Constant-Voltage Residual Chlorine & Ozone Electrode Probe

Product ID：CHGOTHER044

Price: Please inquire PDF Format

Supply Ability:50 SETS/MON

Port:SHENZHEN

Product Introduction
Other information

Model NumberNB-128

Brand NameSHANGHAINUOBO

Payment TermsT/T, paypal，Alibaba.com Pay

NB-128 Constant-Voltage Residual Chlorine & Ozone Electrode Probe

Product Introduction
The NB-128 Constant-Voltage Residual Chlorine & Ozone Electrode Probe is an electrochemical water quality probe designed for residual chlorine and ozone measurement. It can be integrated with portable meters, online water quality monitors, multi-channel water quality analyzers, and intelligent water monitoring systems.
Using the constant-voltage measurement method, the NB-128 provides sensitive and accurate measurement without requiring membrane replacement or reagent consumption. The probe can be immersed directly in water for measurement, making routine operation and maintenance convenient.
With a compact Ø20 × 120 mm design, NTC 2.252K temperature compensation, and flow-through cell installation, the NB-128 is suitable for drinking water, tap water plants, aquaculture, medical testing, and other water quality monitoring applications.

Performance Features
•Constant-voltage measurement: Provides sensitive and accurate electrochemical measurement of residual chlorine and ozone.
• Reagent-free operation: No continuous reagent consumption is required.
• No membrane replacement: Designed for simplified routine maintenance.
• Direct water measurement: The probe can be placed directly into water for measurement.
• Fast response: Sensitive response supports continuous water quality monitoring.
• Temperature compensation: Equipped with NTC 2.252K temperature compensation.
• Customizable cable: Cable length can be customized according to installation requirements.
• Wide system compatibility: Suitable for portable meters, online analyzers, multi-channel systems, and intelligent water quality monitoring platforms.

Working Principle
The NB-128 uses the constant-voltage electrochemical method. A controlled potential is applied to the sensing electrode, and the target oxidizing substances in the water generate an electrochemical current at the electrode surface. The measured current is related to the concentration of residual chlorine or ozone.
The monitoring instrument processes the electrode signal and converts it into a corresponding concentration reading. The integrated NTC 2.252K element provides temperature compensation to help maintain measurement accuracy when water temperature changes.

Technical Specifications

Parameter	Specification
Model	NB-128
Measurement Principle	Constant-voltage method
Measurement Parameter	Residual chlorine / Ozone
Measurement Range	0–20 mg/L
Operating Temperature	0–60°C
Pressure Resistance	≤0.6 MPa
Material	Glass
Temperature Compensation	NTC 2.252K
Dimensions	Ø20 × 120 mm
Installation	Flow-through cell installation
Cable Length	Customizable
Membrane Replacement	Not required according to product description
Reagent Consumption	Not required

Application Scenarios
• Drinking Water Monitoring: Continuous residual chlorine and ozone monitoring in drinking water systems.
• Tap Water Plants: Water quality monitoring during water treatment and distribution.
• Aquaculture: Monitoring disinfectant-related water quality parameters in aquaculture systems.
• Medical Testing: Applicable water quality measurement in medical testing environments.
• Online Water Quality Monitoring: Integration with online water quality analyzers and intelligent monitoring systems.
• Portable Water Analysis: Compatible with portable water quality instruments for on-site measurements.

Comparison: NB-128 vs. Conventional Reagent-Based Chlorine Monitoring

Feature	NB-128 Constant-Voltage Probe	Conventional Reagent-Based Monitoring
Measurement Method	Constant-voltage electrochemical	Reagent-based or other methods
Measurement Range	0–20 mg/L	Depends on system
Reagent Consumption	Not required	May require regular reagents
Membrane Replacement	Not required according to product description	Depends on sensor design
Measurement Operation	Direct immersion measurement	Depends on instrument
Temperature Compensation	NTC 2.252K	Depends on system
Cable	Customizable	Depends on model
System Integration	Portable and online systems	Depends on system configuration
Maintenance	Simplified	Depends on system

FAQ
1. What does the NB-128 electrode probe measure?
The NB-128 is designed for residual chlorine and ozone measurement in water.
2. What is the measurement principle of the NB-128?
It uses a constant-voltage electrochemical measurement method.
3. What is the measurement range?
The specified measurement range is 0–20 mg/L.
4. Does the NB-128 require reagent consumption?
No. The product is designed for direct measurement without continuous reagent consumption.
5. Does the probe require membrane replacement?
According to the product description, membrane replacement is not required.
6. Can the probe be immersed directly in water?
Yes. The probe can be placed directly into water for measurement.
7. Does the NB-128 support temperature compensation?
Yes. It uses an NTC 2.252K temperature compensation element.
8. Can the cable length be customized?
Yes. The cable length can be customized according to installation requirements.
9. What equipment can the NB-128 be connected to?
It can be used with portable meters, online water quality monitors, multi-channel water quality analyzers, and intelligent water quality monitoring systems.

FAQ
1. What does the NB-128 electrode probe measure?
The NB-128 is designed for residual chlorine and ozone measurement in water.
2. What is the measurement principle of the NB-128?
It uses a constant-voltage electrochemical measurement method.
3. What is the measurement range?
The specified measurement range is 0–20 mg/L.
4. Does the NB-128 require reagent consumption?
No. The product is designed for direct measurement without continuous reagent consumption.
5. Does the probe require membrane replacement?
According to the product description, membrane replacement is not required.
6. Can the probe be immersed directly in water?
Yes. The probe can be placed directly into water for measurement.
7. Does the NB-128 support temperature compensation?
Yes. It uses an NTC 2.252K temperature compensation element.
8. Can the cable length be customized?
Yes. The cable length can be customized according to installation requirements.
9. What equipment can the NB-128 be connected to?
It can be used with portable meters, online water quality monitors, multi-channel water quality analyzers, and intelligent water quality monitoring systems.