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A Beginner Guide to Buying ESD Turnstiles (2024 Updated)

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Update time : 2024-01-16 20:08:00

esd access control

1. What is the ESD access control system?

ESD access control system stands for Electrostatic Discharge access control system, which is also call anti-static access control system. It is used for controlling access to areas where sensitive electronic equipment is used or stored, such as data centers, laboratories, manufacturing facilities, and other similar areas. 

The system works by controlling access through the use of ID cards, biometric systems, PIN codes, or a combination of these. It is designed to prevent Electrostatic Discharge damage to electronic devices which can be caused by human touch, motion or other activities. 

1.1 Key components of ESD access control system

ESD access control systems is designed to discharge electrostatic charges that could potentially harm electronic equipment. The goal of an ESD access control system is to minimize the risk of damage to electronic devices and ensure that only authorized personnel are granted access to restricted areas.

It consists of :
    ● ESD tester (with testing wrist band)
    
Footplate
    
Display
    ● Turnstile gates
    
● Access cotnrol system

component of esd turnstile gate system
This kind of intelligent electrostatic access control system is widely used in SMT production line control areas, semiconductor industry clean rooms, high-tech R&D rooms, pharmaceutical factory electrostatic control areas, chemical industry electrostatic control areas, and other places that require anti-static testing and electrostatic protection.

1.2 Functions of ESD access control system

The ESD access control system serves as an essential security measure in workplaces that deal with electronic equipment and devices. Some of its primary functions include:

1. Prevention of Electrostatic Discharge (ESD) - The ESD access control system helps in reducing the static charge from individuals before allowing them access to sensitive electronic equipment, thereby reducing the risk of ESD.

2. Employee Safety - The ESD access control system uses advanced technology to ensure that the staff is safe from accidental electric shocks that may occur due to ESD.
3. Protection of Equipment - The ESD access control system secures electronic equipment by ensuring that only authorized personnel with the right level of static electricity discharge are allowed access.
4. Compliance with Industry Standards - The ESD access control system is designed to comply with industry standards and regulations. Therefore, it helps to meet the reliability, performance, and safety requirements of electronic products.

5. Increased Productivity - The ESD access control system provides a faster and more convenient way of controlling access to workplaces, thereby increasing efficiency and reducing waiting times for employees.
6. Audit Trail of Access - The system helps in tracking and recording all access, thereby ensuring accountability and detecting any security breaches.

Overall, the ESD access control system is an essential security tool to protect employees, equipment, and maintain industry standards in the electronic manufacturing sector.


2. What is ESD turnstile?

ESD turnstile, also known as electrostatic discharge turnstile, is security gate that designed to prevent the buildup and discharge of static electricity. It is commonly used in areas where the discharge of static electricity could potentially damage sensitive electronic equipment or cause safety hazards.

By touching the ESD tester on the tursntiles, the system can detect whether the employee's electrostatic value meets the standard set by the enterprise. The turnstile then checks for a valid credential or authorization and allows the individual to pass through if approved. 

Some ESD turnstiles also have features such as metal detectors or facial recognition technology to further enhance security measures. ESD turnstiles are commonly used in environments such as data centers, manufacturing facilities, and laboratories where the discharge of static electricity can potentially cause serious damage.

2.1 Types of ESD turnstile in the market

There are three types of ESD turnstiles in the market: ESD tripod turnstile, ESD flap barrier and ESD swing barrier.Each type of ESD turnstile has its own unique features and advantages. 
 
ESD tripod turnstile  esd flap barrier   esd turnstile
    ESD Tripod Turnstile                               ESD Flap Barrier                       ESD Swing Barrier

ESD tripod turnstile is a cost-effective option for low to medium security areas. It comes with three arms that rotate and can be controlled by a variety of access control systems.

ESD flap barrier is a more secure option as it consists of two retractable flaps that open when authorized users are detected. 

ESD swing barrier operates similarly to the flap barrier, but with a swinging motion. It is a more aesthetic option and can be customized to fit the design of the surrounding area. 

Choosing the right ESD turnstile depends on the specific needs and requirements of the location. Factors to consider include the level of security required, the amount of traffic flow, and the aesthetic of the surrounding environment. Consulting with Macrosafe expert can help determine the best option for each individual situation.

2.2 How do ESD turnstile work?

ESD (electrostatic discharge) turnstile is  access control systems that use esd tester (or together with other access control system) to allow or restrict entry to restricted areas. 

When someone approaches the ESD turnstile, they must press his finger to the ESD tester to test his body static electricity. If he passes the test, the turnstile unlocks and allows entry. And An access control system can be integrated to ensure that employees can only enter after presenting valid credentials (such as RFID cards, fingerprints, or face recognition).

2.3 Standard operation of ESD turnstile

1. Wear an ESD wrist strap and approach the ESD turnstile 
2. Put on the electrostatic shoes and stand on the ESD testing footplate
3. Insert the esd wrist strap plug into the grounding port on the turnstile.

4. Press the ESD tester with the fingers of the hand with the ESD wrist strap
5. The test result (Pass/No Pass) will be displayed on the display, and if passed, the ESD turnstile will be unlocked.
6. If the test fails, please check your wrist strap and static shoes.

3. What is the ESD turnstile gate price?

The cost of an ESD turnstile gate system can vary depending on several factors including the type of turnstiles, features, ESD system functionality, and materials used in its construction. 

Generally, prices can range from a few thousand dollars to tens of thousands of dollars. It is recommended that you contact us directly for a detailed quote based on your specific requirements.

3. Where can you buy ESD turnstile?

It is important to choose a reputable supplier who can provide assistance with installation and maintenance. Macrosafe is a leading manufacturer and exporter of ESD turnstile and other turnstile gates, providing high quality products and 24/7 technical support. Welcome to contact us for a quotation that fit your needs.

4. Factors to consider when implementing ESD turnstile gate system

esd turnstile gate system
It is crucial to consider the following factors before installing an ESD turnstile gate system in order to ensure that it will perform effectively and efficiently. 

1. Purpose:
Before implementing an ESD turnstile gate system, it is essential to determine the purpose of the gate. Is it to test static electricity,enhance security, or both? Knowing the purpose of the gate will help determine the appropriate features to be included in the gate system.

2. Security Level:
The level of security required will also determine the type of ESD gate and access control system to be used. High-security facilities require gates that are more sophisticated and have additional features such as biometric scanners, facial recognition software or fingerprint and retina scanning.

3. Size and Capacity:
You need to consider the size and capacity of the gate system. You should make sure that the ESD turnstile gate system can handle the number of people that will be using the gate every day. Whether the ESD gate is accommodate people with disabilities and for carrying large items should also be considered.

4. Integration:
An ESD turnstile gate system should be integrated with other systems in the facility, such as the facial recognition and RFID card. This integration will enhance security and enable the system to collect data for analysis and decision-making.


ESD turnstile gate system
5. Durability:
The gate system should be durable and capable of withstanding harsh weather conditions and physical abuse. The system should be made of high-quality materials to ensure longevity.


6. Maintenance:
The system should be simple to maintain and troubleshoot. Regular maintenance should be carried out to ensure that the gate system is functioning effectively.

5. 8 Benefits of implementing ESD turnstile gates

1. Improved Contamination Control: ESD turnstiles provide a barrier to prevent contamination, such as static electricity from the human body, from entering the cleanroom, thereby improving the overall cleanliness of the environment.
2. Increased Security: ESD turnstiles require employees and visitors to swipe their ID cards, providing an additional layer of security to access the cleanroom.
3. Record-Keeping: ESD turnstiles can be equipped with software that records entry and exit times, allowing for easy tracking of employee and visitor movements.
4. Cost Savings: Implementing ESD turnstiles can help to reduce overall operating costs by eliminating the need for a full-time security guard.
5. Employee Accountability: ESD turnstiles can be linked to employee badges, holding employees accountable for their movements and reducing the risk of theft or loss of sensitive materials.
6. Compliance with Regulations: Many industries require compliance with cleanroom standards, and ESD turnstiles can help ensure that all necessary protocols are being followed.
7. Customizable Settings: ESD turnstiles can be customized with different settings, such as access levels based on employee roles or permissions for visitors.
8. Efficient Access: ESD turnstiles automate the process of admitting employees and visitors to the cleanroom, reducing the need for manual checks and providing efficient entry and exit.

6. Harm of static electricity to industrial production

Static electricity is a common occurrence in industrial settings that results from accumulating electrical charges in insulating materials. It may seem harmless, but static electricity can cause various problems in industrial production processes. This post will discuss the ten common harms of static electricity in industrial production.
harm of static eletricity to industrial production
1. Product Contamination
Dust, dirt, and other foreign particles can cling to surfaces due to static electricity. This can lead to product contamination, resulting in quality control issues that can reduce production efficiency and safety.

2. Equipment Damage
Static electricity can cause equipment malfunction or even equipment failure. It can damage sensitive electronic components or cause problems with machinery that relies on precise electronic controls, such as robots or automated mach
ines.

3. Fire and Explosion Hazard
Static electricity can ignite flammable gases, liquids, and powders, causing fires or even explosions in industrial settings. This can lead to property damage or even loss of life.

4. Personnel Safety
Static electricity buildup can lead to electric shocks, causing safety issues for personnel in industrial settings. This is especially common in industries that work with flammable materials.


5. Impaired Efficiency
Static electricity can lead to reduced efficiency in industrial production. For example, static electricity in the printing industry can cause paper jams, slowing the production process.


6. High Maintenance Costs
Static electricity can lead to costly maintenance and repair issues. It can cause wear on moving parts or electronic components, increasing maintenance and repair cost.

7. Decreased Product Shelf Life
Static electricity can cause product degradation, leading to a decrease in shelf life for certain products. This is particularly relevant in industries such as food and beverages or pharmaceuticals.


8. Difficulties in Quality Control
Static electricity can make certain materials difficult to handle in quality control processes. It can cause materials to stick together or become difficult to measure accurately.

9. Toxic Product Release
In certain industrial settings, static electricity buildup can lead to the inadvertent release of toxic materials, resulting in health hazards for personnel and environmental damage.


In conclusion, Static electricity poses a significant threat to industrial production processes. It affects the quality of products and equipment, personnel safety, maintenance costs, quality control processes and even the environment. Industrial businesses must take steps to control this hazard to ensure the safety of workers, preserve equipment and to prevent fires, explosions, or product contamination.

7. How ESD can cause damage to eletronic components?

Electronic components are found in nearly every aspect of modern life, from smartphones to cars. While they may seem safe and durable, electrostatic discharge (ESD) can quickly damage these sensitive components, rendering them useless. In this article, we will explore how ESD can cause damage to electronic components.

ESD occurs when two objects with different electrical charges come into contact, causing a sudden flow of electricity. This sudden surge of electricity can create a high voltage spike, which can cause immediate damage to electronic components. ESD can be caused by various everyday activities, such as walking across a carpet or touching a metal surface.

One of the biggest ways that ESD can cause damage to electronic components is through the release of heat. When an electrical discharge occurs, it generates a significant amount of heat in a very short time. This heat can quickly melt or burn the components if the discharge is strong enough. Additionally, the heat generated by ESD can trigger a process called metallurgical changes, which can cause changes to the structure of the metal components.

ESD can also cause damage to electronic components through the release of electromagnetic radiation. When a discharge occurs, it creates a burst of electromagnetic radiation that can interfere with the delicate electrical components in electronic devices. This interference can cause a cascade of damage that can affect multiple components, resulting in a complete failure of the device.

Another way in which ESD can cause damage is through the creation of an electrical arc. An electrical arc is essentially a spark that jumps from one component to another, causing a brief but intense discharge of energy. An electrical arc can cause immediate damage to components, and it can also cause additional damage by creating a localized temperature increase.

In conclusion, ESD is a serious threat to the durability and functionality of electronic components. Even small static electricity discharges can cause immediate and long-term damage to the components, making it essential to take precautions to prevent ESD. Proper grounding, anti-static devices, and other protective measures can help reduce the risk of ESD damage in electronics. Understanding the causes and consequences of ESD is a crucial step in effectively protecting electronic components.

8. How to train staff on using an ESD turnstile gate system?

Here are some guidelines for training staff on using an ESD turnstile gate system:

1. Start with an overview of the system: Begin by providing an overview of the ESD turnstile gate system, including its purpose, design, and features. Explain to your staff how the system works and why it's important to use it properly.
2. Demonstrate proper usage: Show your staff how to properly use the ESD turnstile gate system. Demonstrate how to swipe the access card or enter the code, how to pass through the gate, and where to stand or wait before entering.
3. Explain the rules: Ensure staff members understand the rules of using the ESD turnstile gate system. Explain the consequences of not using the system properly, including restricted access and security issues.
4. Provide hands-on practice: Allow staff members to practice using the ESD turnstile gate system on their own. Provide feedback and guidance where needed to ensure that everyone feels confident and comfortable using the system.
5. Answer questions: Encourage staff members to ask questions and provide answers to all queries. Make sure they understand the system and feel confident using it.

Above basic guidelines can ensure that your staff members receive proper training and feel comfortable when using the ESD turnstile gate system.

9. 3 type of  ESD anti-static access control system

1. Offline ESD anti-static access control
esd turnstile
Test modes:
1. Only measure the wrist strap to open the ESD turnstiles
2. Only test electrostatic shoes to open the ESD turnstiles
3. Open the ESD turnstiles after the wrist strap and electrostatic shoes are successfully tested at the same time
4. Open the ESD turnstiles after one of the wrist straps and electrostatic shoes is successfully tested

Display:
1. The test results are indicated by the LED lights of the electrostatic tester (HIGH, PASS, LOW)
2. After the test is successful, the gate will open the ESD turnstiles and the traffic light will prompt

Advantages:
1. Fast testing speed (about 30 persons/min)
2. Low cost and economic

Disadvantages:
1. No test results displayed and recorded;
2. Anyone can access without authorization, low-security level


2. Online ESD anti-static access control system without LED display

esd turnstile
Test modes:
1. Swipe the card + test the wrist strap to open the ESD turnstiles successfully
2. Swipe the card + test the electrostatic shoes to open the ESD turnstiles successfully
3. Swipe card + wrist strap and electrostatic shoes to open the ESD turnstiles at the same time
4. Test-free card (swipe the card and open the ESD turnstiles without testing)
Remarks: The test header name department and other information of each card can be set by the software

Display:
1. After swiping the card, the items to be tested and the results are displayed in the LED light of the electrostatic tester, including (HIGH, PASS, LOW) and the distinction between left and right feet.
2. After the test is successful, the gate will open the ESD turnstiles and there will be a traffic light prompt


Advantages: The software can record the card swiping person's name, department, job number, test item electrostatic test results, and other information, and supports importing and exporting personnel lists and records.
Disadvantages: Without the LED display on the ESD turnstiles, the tester's information cannot be displayed on the display screen in real-time, and the access control card may be stolen;

3. Online ESD anti-static access control system + LED display
(Highly recommended!!!)
esd turnstile
Test modes:
1. Swipe the card + test the wrist strap to open the door successfully
2. Swipe the card + test the electrostatic shoes to open the door successfully
3. Swipe card + wrist strap and electrostatic shoes to open the door at the same time
4. Test-free card (swipe the card and open the door without testing)
Note: The test item, name, department, and other information of each card can be set by the software

Display:
1. After swiping the card, the card information (name, department, job number, items to be detected) will be displayed on the 8-inch LCD screen.
2. Verify and test according to the prompt items on the LCD screen. After the success, it will display "The test is successful, please enter". If the test fails, it will display "Test failure prohibited entry" and the gate will not open the door.
3. The items and results to be tested are all displayed in the static test LED light prompt information including (HIGH, PASS, LOW) and distinguish between left and right feet
4. The software can record the name of the card swipe, department, work number, test project, test results and other information to support import and export of personnel lists and records


Advantages:
1.8-inch color high-definition display screen, clearer and more beautiful, users and managers can know in real time whether the electrostatic test has passed and whether the passage is allowed;
2. A variety of test modes can be set, for example, the management can swipe the card to enter without testing, the office staff needs to swipe the card and test the feet, and the production staff needs to swipe the card and test the hands and feet, etc.
3. The software records the entry and exit of personnel and the electrostatic test results, the system supports query and report export, no manual recording is required, and labor costs are reduced;

Welcome to contact us for your perfect ESD access control solutions, we will provide the most suitable configurations based on your needs. FYI, click here to find more ESD turnstiles.

10. Features of ESD turnstiles with face recognition

Macrosafe ESD anti-static access control system means that employees can directly discharge the static electricity from the human body in real-time by wearing electrostatic wrist straps, anti-static shoes, and anti-static clothing, through anti-static floors, and ensuring that there is no problem with the wearing products. Earth, it is best to remove static electricity from personnel with a static eliminator before doing static electricity testing.
esd turnstile
ESD turnstile gates combined with biometric devices is a system that uses face recognition technology to determine whether a person is himself or has a certain authorization, so as to take corresponding measures. Compared with swiping cards or fingerprints, it has the advantages of fast speed, high comparison success, and high-security level, and avoids the disadvantages of employees forgetting to bring cards instead of swiping cards. The core technology of the Macrosafe face recognition gate system is the face recognition algorithm, which can be used in a variety of application scenarios.
ESD turnstiles face recognition features:
1. The face recognition comparison success rate is higher than 99%;
2. 1: N has a high recognition accuracy, and when the face database is 10,000 (it is recommended that the face database be no higher than 10,000), the misrecognition rate is 1 in 10,000, the pass rate is 97%, and the 1:1 face comparison and recognition are accurate. The rate reached 99.7%;
3. The recognition speed is fast, the face tracking and detection takes about 20ms, the face feature extraction takes about 200ms, and the face comparison takes about 0.1ms;
4. Simulate human eyes through computer vision, in line with human recognition habits.
5. Face images can be collected without direct contact with the device;
6. There is no need to cooperate with the collection equipment, the person being collected is not easy to perceive, and the face image can be obtained almost unconsciously;
7. The accuracy rate of computer simulation vision is more than 99%, and it will not be fatigued, which is more reliable than the human eye.

esd turnstile

11. Why are anti-static turnstiles essential for electronic production workshops?

ESD, or electrostatic discharge, is when static electricity causes damage to electronic components. It is a common and serious problem in the electronics industry, with human contact and friction generating several thousand volts of static electricity.

The breakdown damage of components caused by electrostatic discharge is the most common and serious electrostatic hazard in the electronics industry. It is divided into the hard breakdown and soft breakdown. Hard breakdown is a one-time dielectric breakdown, burnout, or permanent failure of components; Soft breakdown The breakdown is to cause the performance degradation of the device or the decrease of the parameter index.


The damage caused by electrostatic discharge is often difficult to detect until the product reaches the end user, and can result in significant economic loss.

To prevent this, some manufacturers provide electrostatic protective clothing, but the efficacy of these products diminishes over time. Macrosafe ESD turnstiles with access control system can effectively detect static electricity carried by employees, and prevent unauthorized personnel from entering the production workshop. The staff attendance records are stored in a system that reduces labor costs while also preventing ESD damage. The Macrosafe ESD turnstile system is ideal for electronic production workshops such as SMT production lines, military electrostatic control areas, and semiconductor clean rooms.  Welcome to
contact us for detailed solutions and quotations.

12. Routine maintenance of ESD turnstiles

First of all, Macrosafe ESD turnstiles are maintenance-free within one year of installation. After one year, we can carry out routine maintenance from the following aspects
1. Every three months, check whether the wiring of the ESD turnstile gate, ESD tester, power cable of the management host, network cable, and grounding cable is loose to ensure that the wiring is normal.
2. Check the power lights of the turnstiles control board and the static management board, and whether the network signal lights are normal.
3. Check the connection of each interface of the turnstiles movement to prevent the firmware from loosening.
4. Add lubricating oil to the connecting parts and move inside the gate every six months to maintain a good lubricating state.
5. Check whether the card reader is loose and whether it affects the sensitivity of card recognition.
6. The ESD tester needs to be calibrated once a year (networked ESD turnstiles can be automatically calibrated by the management host).

13. How to reduce static electricity in clean room?

An electrostatic discharge (ESD) occurs when electricity flows suddenly between two electrically charged objects, resulting in a spark. This can occur when two objects with different electrical charges come into contact, or when an object with an electrical charge comes into contact with a conductor. 

ESD can cause damage to electronic components, circuits, and devices, especially those that are sensitive to small electrical disturbances. The damage caused by ESD is often not visible to the naked eye and lead to long-term reliability of electronic equipment.

To prevent or minimize the damage caused by ESD, it is important to take the following precautions:

1. Use ESD-safe equipment: Use anti-static mats, wrist straps, and other equipment that is specifically designed to prevent ESD.
2. Keep the environment dry: Humid environments can lead to greater buildup of static electricity, so be careful when working in such environments.
3. Handle electronic components with care: Always handle electronic components by their edges, as this minimizes the risk of electrical discharge.
4. Avoid touching sensitive components: Avoid touching sensitive electronic components, especially if your hands are sweaty or if you're wearing synthetic clothing.

5. Set up ESD access control system at the entrance:Implementing an esd access control system at the entrance can effectively reduce employees carrying static electricity into the production workshop.

esd turnstile
These precautions can minimize the risk of damage caused by ESD when working with electronic components and equipment. 

14. What are the hazards of industrial static electricity in the semiconductor industry?

As we all know, static electricity is ubiquitous and occurs all the time. It is eliminated in one second and it is generated again in the next second. This is true from static electricity in life to industrial static electricity. In many industrial fields, the impact of static electricity on the semiconductor manufacturing process is extra obvious, so the semiconductor industry has higher protection requirements for static electricity than other industries. So what are the specific hazards of static electricity to it?
1. MOS structure components, dielectric breakdown caused by excessive static electricity, resulting in short circuit
2. Semiconductor structural components, secondary breakdown of microplasma caused by overheating
3. Membrane resistor structural components, which form a new current path by dielectric breakdown
4. Metallized strip structure (IC), static electricity causes open circuit related to Joule heating
5. Piezoelectric crystal structure components, the mechanical pressure shock caused by electrostatic interference is too large, resulting in crystal fracture

15. FAQs about ESD turnstile gate & ESD access control system

1. What is an ESD turnstile?
An ESD turnstile, also known as an electrostatic discharge turnstile, is a security entrance gate that helps test static electricity that emloyees may have built up on their body. 

2. What is electrostatic discharge (ESD)?
Electrostatic discharge is a sudden flow of electricity caused by the release of built-up static electricity. It can damage electronic equipment and affect the performance or functionality of the equipment.

3. How does an ESD turnstile work?
An ESD turnstile works by using static testing technology to test any static electricity that people may have built up on their body. 

4. What are the different types of ESD turnstiles?
There are 3 types of ESD turnstiles: 
(1) ESD tripod turnstiles 
(2) ESD flap barriers 
(3) ESD swing barriers/speed gate

5. Can ESD turnstile system  support attendance and access records?
Yes,it can.

6. What is the warranty of Macrosafe ESD turnstile gate system?
Macrosafe ESD turnstile gate comes with 2-years warranty.

7. What are the benefits of using an ESD turnstile?
Using an ESD turnstile can help prevent electrostatic discharge-related damage to sensitive electronic equipment, reduce downtime, and improve product quality.

8. What are the features of a good ESD turnstile?
A good ESD turnstile should have reliable static control technology, be easy to operate, have a low maintenance requirement, and be able to integrate with existing access control systems.

9. What factors should I consider when choosing an ESD turnstile?
When choosing an ESD turnstile, consider whether need access control, the level of foot traffic, the required security level, and the available space for installing the turnstile.

10. How much does an ESD turnstile cost?
The cost of an ESD turnstile varies depending on the type, features, and brand. Prices can range from a few hundred dollars to several thousand dollars.

11. Are there any safety concerns when using an ESD turnstile?
There are no safety concerns when using an ESD turnstile. It is a safe and effective way to control foot traffic and prevent electrostatic discharge-related damage to sensitive equipment.

12. Can an ESD turnstile be integrated with an access control system?
Yes, an ESD turnstile can be integrated with an access control system to provide additional security measures.

13. How do I maintain an ESD turnstile?
Maintenance of an ESD turnstile involves regularly cleaning the turnstile and ensuring that the static control technology is functioning properly. It is recommended to have a professional perform maintenance on the turnstile periodically.

14. Can I install an ESD turnstile by myself?
Yes, Macrosafe provide video, user manual, wiring diagram and  other documents which make sure you can install them easily.

15. Do Macrosafe provide installation service?
Yes, Macrosafe has authorized dealers in more than 50 countries and regions, most of them also provide installation services, please contact us to find out about your local dealers,

17. How to calibrate the electrostatic discharge(ESD) tester?

In order to ensure that the ESD tester can work accurately, it needs to be calibrated regularly, usually once a year. Taking the MS-E01 ESD tester as an example, it has three status displays:
LOW (lower than the set value)
PASS (within the set value range)
and HIGH (higher than the set value).
The set values are 750kΩ, 10MΩ, 100MΩ, can detect the comprehensive resistance of the human body and alarm.

Required testing equipment: adjustable high resistance box; range: 100Ω ~ 1000MΩ; accuracy level: level 1 and below.

esd testerAdjustable high resistance box
The calibration of the ESD tester involves the following procedures:

1. Appearance Inspection: Ensure that the calibrated tester is free from any visible defects that could potentially affect its normal operation.

2. Calibration Steps:
- Wrist Strap Calibration:
   a. Set the wrist strap/work shoe switch to the wrist strap position.
   b. Insert the banana plug into the corresponding hole of the tester.
   c. Connect the adjustable high-resistance box.
   d. Power up the tester.

   - Low (red) to PASS (green) Conversion Calibration:
     - Adjust the resistance value of the adjustable high-resistance box to 750kΩ.
     - Touch the metal cap with the other connecting wire on the pressure tester.
     - Gradually increase or decrease the resistance value of the adjustable high-resistance box.
     - Observe the resistance change on the human body comprehensive tester indicator light.
     - Record the critical resistance value when the status light changes from LOW (red) to PASS (green).
     - Ensure no alarm sound is present.

   - PASS (green) to HIGH (red) Conversion Calibration:
     - Repeat the steps of the Low to PASS conversion calibration.
     - Before performing the operation, adjust the adjustable high-resistance box to the resistance position of 10MΩ (for wristbands) or 100MΩ (for work shoes).
     - Record the critical resistance value when the status light changes from PASS (green) to HIGH (red).
     - Observe for any alarm sound.
     - If separate jacks are available for left and right feet, calibrate each side separately.

- Work Shoe Calibration:
   a. Set the wrist strap/work shoe switch to the work shoe position.
   b. Repeat steps b-d from the Wrist Strap Calibration.

   - Pedal Test:
     - Insert the connected banana plug into the corresponding jack of the tester.
     - Attach a wire to one end of the adjustable high-resistance box through the metal screw on the pedal.
     - Close the lid and follow the steps of the Calibration PASS to HIGH Conversion.
     - The error between the instrument calibration result and the calibration result without the foot pedal should be ≤1%.

17. Industry standards and guidelines related ESD control
1. ANSI/ESD S20.20-2021: It is a voluntary industry standard developed by the Electrostatic Discharge Association (ESDA) and accredited by the American National Standards Institute (ANSI). This standard provides guidelines for the development of an Electrostatic Discharge (ESD) control program to protect electronic parts, assemblies, and equipment susceptible to damage by electrostatic discharges.

1. IEC 61340: The International Electrotechnical Commission (IEC) has published several standards related to ESD control, including IEC 61340-5-1, which specifies the requirements for the design, implementation, and maintenance of an ESD control program.

2. ESDA Standards: The Electrostatic Discharge Association (ESDA) has developed various standards and documents related to ESD control and management, including ANSI/ESD S541 for packaging materials in the electronics industry.

3. NFPA 77: The National Fire Protection Association (NFPA) has guidelines related to static electricity in the U.S., with NFPA 77 specifically addressing static control during the handling and processing of flammable and combustible liquids and powders.

4. ASTM Standards: The American Society for Testing and Materials (ASTM) also has standards related to static control, such as ASTM D2863, which covers surface resistivity measurements of plastics.

These standards, among others, provide comprehensive guidelines for ESD control in various industries, helping organizations establish effective ESD control programs to protect sensitive electronic equipment and components from electrostatic damage. 

19.Static Electricity Incidents Review

1. The March 16, 2016 blast caused a postdoctoral researcher to lose an arm and about $800,000 in damage to the lab in the Hawaiʻi Natural Energy Institute (HNEI) at UH Mānoa. Read more.
2.On November 20, 2017, a fire broke out at the Verla International factory in New Windsor, New York. The accident resulted in the death of one person and the hospitalization of 125 people. After investigation, it was found that fire began when the static electricity ignited a flammable liquid during the manufacturing process.Read more.

 

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