Frequently Asked Question
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Some Aposun products have passed RoHS CE Certificate.
All Aposun products come with a manufacturer’s 12-month warranty. Please view more about product warranty.
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3 working days for some in stock products,
5 working days for most of goods,
2 weeks for bulk order,
All goods will be tested for 24 hours before package.
3-5 days by express to your doorstep,
2-5 days by air to your nearest airport,
30 days by sea to your nearest seaport.
FAQs for product
- All
- FAQ for power meter
- FAQs for temperature controller
- FAQs for Universal panel meter
- FAQs for UV monitor
- FAQs for UV sensors
What is a Ramp Soak Controller?
Ramp Soak Controllers are a subset of profile controllers, they are mainly for controlling temperature or any other process parameter against time. Ramp Soak controllers control the rate of rise (ramp) of temperature /controlled parameters and then maintain it to the programmed value for the programmed time.
How to set a digital panel meter for the displacement sensor?
The parameters of digital panel meters for displacement sensors generally include the upper limit of the measured value, the lower limit of the measured value, the upper limit of deviation, the lower limit of deviation, and the absolute value of the deviation. For example, the upper (lower) limit of the measured value is used to set the maximum (minimum) measuring range of the displacement. It is used to display the displacement value delivered to the DCS control system.
1, What is IP Rating?
IP stands for International Protection Marking.
The first number shows how well it can resist dust;
The second number shows how well it can resist water flow;
The third number shows how well it can resist water flowing from any direction.
The following diagram will help you to understand the protection levels better corresponding to different values in IP rating.
IP55 Waterproof
IP55: 5 represents good dust-proof and touch protection, and 5 represents good moisture-proofing.
Application: Suitable for dry or wet areas, such as the living room, kitchen, and bathroom. It’s not recommended to use it where water can be splashed.
IP65 Waterproof
IP65: 6 represents good dust-proof and touch protection. 5 stands for preventing spraying water from all directions.
Application： Suitable for wet or water-splashed areas for e.g. the kitchen, bathroom, and eaves. As the casing is hollow, it’s not recommended for outdoor use.
IP67 Waterproof
IP67: 6 represents good dust-proof and touch protection. 7 stands for underwater protection against water intrusion.
Application: can be immersed in water, such as a swimming pool, or fish tank.
AC 380V 5A or 380V 1A, others 220V 5A/1A
There are 4 buttons on the panel of CHD9001,
I button, press to check the basic electrical parameters voltage, amp, power, reactive power, apparent power, power factor and frequency.
II button, press to check the power quality parameters(optional);
III button, press to check the KWH, KVah energy parameter;
UV intensity refers to the strength or amount of ultraviolet (UV) radiation present in a particular environment. UV radiation is a type of electromagnetic radiation with shorter wavelengths than visible light, and it is divided into three categories based on wavelength: UVA, UVB, and UVC.
UV intensity is typically measured in terms of power per unit area and is expressed in units such as watts per square meter (W/m²). The intensity of UV radiation can vary depending on factors such as the time of day, geographic location, altitude, atmospheric conditions, and the presence of reflective surfaces.
Exposure to high levels of UV radiation, especially UVB and UVC, can have harmful effects on living organisms, including humans. UV radiation is known to cause sunburn, premature aging of the skin, and an increased risk of skin cancer. It is important to protect oneself from excessive UV exposure by using sunscreen, wearing protective clothing, and avoiding prolonged exposure to direct sunlight.
UVC (Ultraviolet-C) relative intensity value % and UVC absolute intensity value mw/cm² are metrics used to measure the strength or power of UVC radiation, a type of ultraviolet light with a wavelength range of approximately 200 to 280 nanometers. UVC radiation is often used for germicidal purposes, as it can effectively kill or inactivate microorganisms, including bacteria and viruses.
UVC Relative Intensity Value %:
The UVC relative intensity value % represents the percentage of UVC radiation emitted by a source relative to a reference source or a standard. This metric compares the output of different UVC devices, such as UVC lamps or UVC LEDs, to determine their relative effectiveness in germicidal applications. The higher the percentage, the more intense the UVC radiation emitted by the source. It helps in assessing the strength of the UVC source compared to a known benchmark.
UVC Absolute Intensity Value mw/cm² (milliwatts per square centimeter):
The UVC absolute intensity value mw/cm² represents the actual power or energy of UVC radiation that is delivered to a surface per unit area (usually per square centimeter). It measures the intensity of UVC radiation at a specific distance from the source and indicates how much germicidal power is available for disinfection. It is a more concrete and precise measurement of UVC irradiance.
In practice, to calculate the UVC absolute intensity value in milliwatts per square centimeter, you would typically need a UVC radiometer or a UVC sensor. These devices can measure the UVC irradiance at a given distance from the source and provide a value in mw/cm². This value is important for determining the effectiveness of UVC radiation in disinfection and sterilization applications, as it helps ensure that the desired dosage of UVC is delivered to the target surface to achieve the intended germicidal effect.
In summary, the UVC relative intensity value % is a comparative measure, while the UVC absolute intensity value mw/cm² is a specific measurement of UVC radiation power at a particular distance from the source. Both metrics are important in assessing and using UVC technology for germicidal purposes.
The UVC relative intensity value % and UVC absolute intensity value mw/cm² serve different purposes and provide different types of information, so the choice of which value to use depends on your specific needs and goals. Here’s a summary of the key differences and when to use each value:
UVC Relative Intensity Value %:
Comparative Measure: This value represents the percentage of UVC radiation emitted by a source relative to a reference source or a standard. It’s a relative measure used for comparing different UVC sources.
Use Cases: UVC relative intensity % is useful when you want to assess how one UVC source compares to another in terms of output strength. It’s helpful for benchmarking and determining the relative power of different UVC devices.
UVC Absolute Intensity Value mw/cm²:
Specific Measurement: This value represents the actual power or energy of UVC radiation delivered to a surface per unit area (typically per square centimeter). It provides a precise measurement of UVC irradiance at a specific distance from the source.
Use Cases: UVC absolute intensity in mw/cm² is essential when you need to know the exact power of UVC radiation at a particular location. It’s critical to ensure that the required UVC dosage is delivered for effective germicidal applications. For example, in disinfection or sterilization, it’s important to know the actual UVC intensity reaching a surface to achieve the desired level of microbial inactivation.
In practice, the choice between these values depends on your objectives:
If you want to compare different UVC sources or evaluate their relative strengths, use UVC relative intensity value %.
If you need to determine the actual UVC intensity at a specific location to ensure effective disinfection or sterilization, use the UVC absolute intensity value mw/cm².
For many practical applications, such as disinfecting surfaces in healthcare settings or water treatment systems, the UVC absolute intensity value mw/cm² is more critical, as it ensures that the appropriate germicidal dosage is delivered. However, the UVC relative intensity value % can still be useful for manufacturers or researchers when comparing and benchmarking different UVC devices or technologies.
An online UV intensity monitor is a device designed to continuously measure and monitor ultraviolet (UV) radiation levels in real-time. These monitors are often used in various applications where UV radiation plays a crucial role, such as water treatment, air purification, and industrial processes. The term “online” signifies that the monitoring is performed continuously, providing immediate feedback on the UV intensity levels.
Here are key features and characteristics of online UV intensity monitors:
Real-time Monitoring:
Online UV intensity monitors provide instant and continuous measurements of UV radiation levels, allowing for prompt responses to any variations or deviations.
Application in Water Treatment:
In water treatment systems, online UV intensity monitors are used to ensure that UV disinfection processes are operating at the desired intensity levels for effective pathogen inactivation.
Air Purification:
In air purification systems, especially those using UV lamps to eliminate airborne contaminants, online UV intensity monitors help maintain optimal disinfection conditions.
Industrial Processes:
Online UV intensity monitoring is utilized in various industrial processes where UV radiation is employed for curing, drying, or sterilization. It ensures that UV levels are consistent for the desired outcomes.
Automation and Control:
These monitors are often integrated into control systems, allowing for automated adjustments based on the real-time UV intensity data. This helps maintain process efficiency and effectiveness.
Data Logging and Analysis:
Online UV intensity monitors may include features for data logging and analysis, allowing for historical tracking of UV levels and performance assessments over time.
Alarm Systems:
Many online UV intensity monitors are equipped with alarm systems that can trigger alerts or notifications if UV levels fall outside the specified range. This enables operators to take corrective actions promptly.
Remote Monitoring:
Some online UV intensity monitors offer remote monitoring capabilities, allowing users to access and view UV intensity data from a distance, enhancing convenience and accessibility.
Multi-Channel Monitoring:
In systems with multiple UV lamps or sources, online UV intensity monitors may have multiple channels to monitor and display the intensity of each source individually.
Calibration and Maintenance Features:
These monitors often include features for easy calibration and may provide alerts or reminders for routine maintenance.
By employing online UV intensity monitors, industries can ensure the effectiveness of UV-based processes, enhance system reliability, and comply with regulatory requirements. The continuous monitoring capability is particularly valuable in applications where maintaining consistent UV levels is critical for achieving the desired outcomes.
A UV intensity sensor is a sensor designed to measure the intensity of ultraviolet (UV) radiation in water. These sensors are commonly used in water treatment applications, where UV radiation is employed for disinfection purposes to inactivate microorganisms. UV intensity sensors play a crucial role in ensuring that the UV disinfection process is operating at the desired levels of intensity to effectively treat and purify the water.
Here are the key features and functions of UV intensity sensors for water systems:
Measurement of UV Intensity:
UV intensity sensors measure the power per unit area of UV radiation in the water. The intensity is typically expressed in units such as watts per square meter (W/m²).
Wavelength Specific:
UV intensity sensors are designed to measure specific wavelengths of UV radiation. The wavelength range is chosen based on the characteristics of the UV lamps or sources used in the water treatment system.
Real-Time Monitoring:
These sensors provide real-time monitoring capabilities, continuously measuring UV intensity as water flows through the treatment system.
Integration with UV Disinfection Systems:
UV intensity sensors are integrated into UV disinfection systems to ensure that the UV lamps are emitting the required intensity for effective disinfection.
Feedback Control:
UV intensity sensors are often part of feedback control systems that automatically adjust the power supplied to UV lamps based on real-time UV intensity measurements. This helps maintain consistent disinfection levels.
Alarm Systems:
UV intensity sensors may include alarm systems that trigger alerts or notifications if UV intensity falls outside the specified range. This allows for prompt corrective actions.
Verification of UV System Performance:
These sensors are crucial for verifying and validating the performance of UV disinfection systems, ensuring they meet regulatory requirements and effectively treat waterborne pathogens.
Compact Design:
UV intensity sensors are often designed to be compact and easily integrated into existing water treatment infrastructure.
Calibration and Maintenance:
Regular calibration and maintenance are essential for the accuracy and reliability of UV intensity sensors. Some sensors may include features to simplify calibration processes.
Multiple Channels:
In systems with multiple UV lamps or sources, UV intensity sensors may have multiple channels to monitor and display the intensity of each source individually.
The information provided by UV intensity sensors allows operators to make informed decisions about the efficiency and effectiveness of the UV disinfection process. By ensuring that the UV intensity is within the desired range, these sensors contribute to the overall quality and safety of treated water.
Should we pay attention to the UV light pressure when we choose a suitable UV intensity sensor?
Yes, we must!!
Low-pressure (LP) UV lamps and medium-pressure (MP) UV lamps are two different types of ultraviolet (UV) lamps commonly used in water treatment systems for disinfection purposes. The main differences between them lie in their design, wavelength spectrum, and applications. Understanding these differences is important when selecting a suitable UV intensity sensor for a particular UV lamp type. Here’s a breakdown of their distinctions:
Design:
Low-Pressure UV Lamps (LP): LP UV lamps are characterized by their long, slender shape. They operate at a low pressure and typically emit a monochromatic UV light at a specific wavelength, usually around 254 nanometers (UVC range).
Medium-Pressure UV Lamps (MP): MP UV lamps have a thicker, more robust design. They operate at higher pressures and emit UV light across a broader spectrum, including UVA, UVB, and UVC wavelengths.
Wavelength Spectrum:
Low-Pressure UV Lamps (LP): LP lamps primarily emit UV light at a specific wavelength, typically around 254 nm (UVC). This wavelength is effective for germicidal applications.
Medium-Pressure UV Lamps (MP): MP lamps emit UV light across a wider spectrum, including UVA, UVB, and UVC. While they still provide germicidal effects, they also have applications in processes where a broader UV spectrum is beneficial, such as advanced oxidation.
Applications:
Low-Pressure UV Lamps (LP): LP lamps are commonly used in water disinfection applications where the primary goal is to inactivate microorganisms, such as bacteria and viruses.
Medium-Pressure UV Lamps (MP): MP lamps find applications beyond disinfection. Their broader spectrum makes them suitable for processes requiring advanced oxidation, where organic and inorganic contaminants are targeted.
When choosing a suitable UV intensity sensor, it’s crucial to consider the type of UV lamp used in the water treatment system:
For Low-Pressure UV Systems:
A UV intensity sensor is designed to measure a broader spectrum of 210~375nm for Low-Pressure UV Systems because of the wavelength emitted by low-pressure UV lamps (around 210~280 nm only UVC).
For Medium-Pressure UV Systems:
A UV intensity sensor is designed to measure a narrower spectrum of UV wavelengths (Only UVC 210~280nm) for medium-pressure UV systems. A medium-pressure ultraviolet lamp not only emits UVC (ultraviolet C) but also generates UVB (ultraviolet B) and UVA (ultraviolet A) as byproducts.
It’s essential to match the characteristics of the UV intensity sensor with the specific UV lamp technology employed in the water treatment system to ensure accurate and reliable monitoring. Using the wrong type of sensor may result in inaccurate readings and compromise the effectiveness of the UV disinfection or treatment process.
Choosing a suitable online UV intensity monitor for a water system involves considering various factors to ensure accurate and reliable measurements for effective disinfection. Here are key considerations when selecting an online UV intensity monitor:
UV Lamp Type:
Identify the type of UV lamps used in your water treatment system (e.g., low-pressure or medium-pressure lamps). Ensure that the UV intensity monitor is compatible with the specific wavelength spectrum emitted by the lamps.
Wavelength Range:
Choose a UV intensity monitor with a wavelength range that corresponds to the UV lamps in use. For example, if the system uses low-pressure UV lamps emitting primarily in the UVC range (around 254 nm), the monitor should be suitable for measuring UVC wavelengths.
Measurement Range:
Consider the expected range of UV intensities in your water system. Select a monitor with a measurement range that covers the intensities relevant to your application. This ensures accurate readings across different operating conditions. APOSUN standard UV intensity monitor range is 0~20000uw/cm², other range can be customized.
Accuracy and Precision:
Look for a UV intensity monitor with high accuracy and precision to provide reliable measurements. Consider the sensor’s sensitivity to changes in UV intensity, especially in applications where rapid adjustments may be necessary. APOSUN standard UV intensity monitor accuracy is 0.1%,0.01% high accuracy is optional.
Response Time:
Choose a monitor with a response time suitable for your application. Faster response times are crucial for systems with dynamic UV intensity changes, allowing for real-time adjustments and ensuring effective disinfection.
Environmental Conditions:
Assess the environmental conditions in which the UV intensity monitor will operate. Ensure that the monitor is designed to withstand factors such as temperature, humidity, and exposure to chemicals commonly found in water treatment environments.
Integration and Compatibility:
Ensure that the UV intensity monitor is compatible with the control and monitoring systems in your water treatment setup. Check for compatibility with communication protocols used in your system for seamless integration.
Calibration and Maintenance:
Consider the ease of calibration and maintenance. Choose a UV intensity monitor that facilitates straightforward calibration processes and provides alerts or reminders for routine maintenance.
Alarm Systems:
Opt for a monitor with alarm systems that can trigger alerts or notifications if UV intensity falls outside the specified range. This feature enables prompt corrective actions. APOSUN UV intensity monitor has a relay alarm for both UV relative intensity and UV lamp life.
Data Logging and Analysis:
Evaluate the data logging and analysis capabilities of the UV intensity monitor. Some monitors offer features for storing historical data, which can be valuable for performance assessments and regulatory compliance. APOSUN CHS9CM has RS485,4-20MA,1-5V analog output for data logging and Analysis.
By carefully considering these factors, you can select a suitable online UV intensity monitor that aligns with the specific requirements of your water system, contributing to the effectiveness of UV disinfection processes.
Choosing a suitable UV sensor for a water system involves considering various factors to ensure it meets the specific needs of your application. Here are key considerations when selecting a UV sensor for a water system:
Type of UV Radiation:
Identify the type of UV radiation relevant to your water system. Determine whether UVA, UVB, or UVC sensors are required based on the UV lamps or sources used for disinfection.
Wavelength Range:
Choose a UV sensor with a wavelength range that matches the UV lamps in your water treatment system. Different UV sensors are designed for specific wavelength bands, so ensure compatibility.
Application Purpose:
Consider the purpose of UV measurement in your water system. For disinfection purposes, a sensor focused on germicidal wavelengths (e.g., UVC) may be suitable, while other applications might require a broader spectrum.
Measurement Range:
Select a UV sensor with an appropriate measurement range to cover the intensity levels expected in your water treatment system. Ensure that the sensor can accurately measure the range of UV intensities relevant to your application.
Accuracy and Precision:
Look for a UV sensor with high accuracy and precision. Accurate measurements are crucial for ensuring effective disinfection and compliance with regulatory standards.
Response Time:
Consider the response time of the UV sensor. Faster response times are important in dynamic systems where rapid changes in UV intensity require immediate monitoring and adjustments.
Environmental Conditions:
Assess the environmental conditions in which the UV sensor will operate. Ensure that the sensor is designed to withstand factors such as temperature, humidity, and exposure to chemicals commonly found in water treatment environments.
Sensor Type:
Choose between different types of UV sensors, such as screw type,(NPT, UNC, UNF, G…), screw size(1/2,1/4,3/4…), photodiode sensors, photomultiplier tube (PMT) sensors, or other technologies. Consider factors like sensitivity, stability, and the sensor’s ability to perform well in your specific application.
Integration:
Ensure that the UV sensor can be easily integrated into your water treatment system. Check for compatibility with communication protocols used in your system for seamless integration.
Calibration and Maintenance:
Consider the ease of calibration and maintenance. Choose a UV sensor that facilitates straightforward calibration processes and provides alerts or reminders for routine maintenance.
Output and Compatibility:
Verify the output signal type (RS485, RJ45, analog, digital, etc.) and compatibility with monitoring or control systems in your water treatment setup.
Certifications and Standards:
Verify that the UV sensor complies with relevant industry standards and certifications. This ensures that the sensor meets quality and performance requirements.
Cost Consideration:
Consider your budget while ensuring that the selected UV sensor meets the necessary requirements for your specific application.
Manufacturer Reputation:
Choose a UV sensor from a reputable manufacturer with a history of producing reliable and high-quality sensors.
By carefully evaluating these factors, you can choose a UV sensor that is well-suited to your water system’s requirements, contributing to effective UV monitoring and disinfection processes.
A typical UV water disinfection system comprises essential components, including a UV reactor chamber, control panel, UV monitoring system, and automatic wiper system. The UV reactor chamber, constructed from robust stainless steel, holds and disinfects water using UV-C lamps. The chamber’s design, with integrated baffles and flow diverters, ensures optimal water flow for effective UV exposure.
Control Panel and Monitoring System:The control panel serves as the central hub in the UV water disinfection system, facilitating monitoring and control.
System Monitoring: Displays UV intensity, dose, flow rate, and operating temperature for operators to assess system performance.
UV Intensity Monitoring: Utilizes UV sensors to measure real-time intensity, crucial for ensuring sufficient UV dose for effective disinfection.
Lamp Life Tracking: Monitors operating hours of UV lamps, alerting operators when replacement is needed.
System Control: Allows system activation, adjustment of UV dose rate, and other functions, with some systems offering automatic adjustments for optimal performance.
Alarm System: Alerts operators to issues such as reduced UV dose, lamp failure, or abnormal flow rate, preventing ineffective disinfection.
Data Logging: Some control panels log performance data (e.g., UV intensity and flow rate) over time, aiding in record-keeping, performance tracking, and issue identification.
UV Monitoring System: This system verifies the administered UV dose, ensuring the accurate delivery of the required dose for effective disinfection.
Automatic Wiper System: The automatic wiper system is crucial for maintaining optimal UV performance. It cleans quartz tubes housing UV lamps to prevent surface coating with scale, biofilm, or other substances present in water or wastewater. This coating can reduce UV light passage, leading to decreased UV dose and disinfection effectiveness. The automatic wiper system periodically wipes UV lamp surfaces, ensuring a consistently sufficient UV dose.
The necessity of an automatic wiper system depends on water quality. In instances of high hardness, turbidity, or substances that may coat lamps, an automatic wiper system proves particularly beneficial. Conversely, in relatively clean water, the need for an automatic wiper system may be less pronounced. The comprehensive integration of these components ensures the UV water disinfection system’s effectiveness and reliability in various water treatment scenarios.
Aposun CHD9001 3 phase LCD power engery meter measures up to 42 parameters. It’s a simple & reliable power energy monitor which is widely used in electric power systems, low-voltage distribution, environment monitor, etc..
| Line Voltage | UFab, UFbc, UFac | Total reactive power | TOT (KWH) | Date | DATE |
| Phase Voltage | Ua, Ub, Uc | Total inactive power | TOT(Kvarh) | Time | TIME |
| Current | Ia, Ib, Ic | Import reactive power | IMP (KWH) | ||
| Total/Phase reactive power | P, Pa, Pb, Pc （W) | Export reactive power | EXP (KWH) | ||
| Total/Phase inactive power | Q, Qa, Qb, Qc (Var) | Import inactive power | IMP(Kvarh) | ||
| Total/Phase apparent power | S, Sa, Sb, Sc | Export inactive power | EXP(Kvarh) | ||
| Total/Phase power factor | PF, PFa, PFb, PFc | Multi-rate total reactive power | F1, F2, F3, F4 (KWH) | ||
| Frequency | F | Multi-rate total inactive power | F1, F2, F3, F4 (Kvarh) |
Sometimes the electric meter from the electric company reads CL 200 and 240 V.
That 240V means the meter box itself is designed for 240V electric service;
The CL200 means the box is rated for up to 200A continuous 220/240V power draw through it
It tells the power should not exceed 200A on each “side” or live lead of the 220/240V wiring, however can be less.
Aposun CHD9001 offers 2 types of measuring range for choice—3×220/380V 1A & 3×220/380V 5A. For the higher voltage or ampere, we can use relative Current transformer (CT) and Pressure transformer (PT).
Ultraviolet (UV) light is found occupying the portion of the electromagnetic spectrum between X-rays and visible light. The sun emits ultraviolet light; however, much of it is absorbed by the earth’s ozone layer. Just as visible light consists of different colors that become apparent in a rainbow, the UV radiation spectrum is divided into three regions called UVA, UVB and UVC.
UV-A wavelength: 315-400 nm. Not absorbed by the ozone layer
UV-B wavelength: 280-310 nm. It is mostly absorbed by the ozone layer, but some do reach the Earth’s surface.
UV-C wavelength: 100-280 nm. It is completely absorbed by the ozone layer and atmosphere.
Short-wavelength UV-C is the most damaging type of UV radiation.
A unique characteristic of UV light is that a specific range of its wavelengths, those between 200 and 300 nanometers (billionths of a meter), are categorized as germicidal – meaning they are capable of inactivating microorganisms, such as bacteria, viruses and protozoa. This capability has allowed the widespread adoption of UV light as an environmentally friendly, chemical-free, and highly effective way to disinfect and safeguard water against harmful microorganisms.
Usage: Used in curing, aging, air sterilization, sewage treatment, water treatment, ozone detection, arc monitoring, and other industries.