OKet Intelligent Solutions for Petrochemical Storage Depots

contents 01 Company Profile 02 Overall Framework Diagram 03 Integrated Loading and Unloading Management System 04 Safety Loading and Unloading Interlocking System 05 Quantitative Loading System 06 Vertical Tank Gauge System 07 Safety Tank Storage Solution 08 Application Cases

Integrated Flowchart of Hazardous Chemicals Warehouse Loading and Unloading Products and Solutions

• System Overview

• System Composition

• Application Flowchart

• System Features

· System Overview

• Process Controller

• Multifunctional Overflow and Static Electricity Controller

• Gas Phase Monitoring Sensor

• Human Body Static Electricity Controller

• Hydrocarbon Gas Detection and Alarm System

• Unloading Anti-mixing Controller

• Quantitative Loading Controller

• Quantitative Loading Controller Management Software System

• AMF Series Mass Flowmeter

• RTG Radar Level Gauge

• VAP-O-LOC Full Composite Material Floating Roof

• Floating Roof Sealing System

• High-compensation Elastic Sealing System

• Secondary Sealing System

• System Architecture Diagram

• Management Platform

• Loading Arm Back-place Controller

• Loading Arm Connection-in-place Sensor

· Wheel Chock Back-place Controller

• The Wireless Wheel Chock Position Detector

• Explosion-proof Vehicle Barrier

• Product Technical Parameter Summary Table

OKet Group Introduction

OKet, the first section is headquartered in Qingdao, Shandong, and the second section is headquartered in Xinjiang, was founded in 2001, and has emerged as a leading provider of intelligent solutions for industrial measurement, safety, and environmental protection. Specializing in integrating cutting-edge technologies -including new materials, sensors, automation instruments, loT, edge computing, big data, and AlOKet delivers comprehensive solutions for the entire lifecycle of hazardous chemical management, for retail stations, tanker transportation, and petrochemical depots, showcasing expertise in the Oil & Gas downstream sector.

Mission & Vision

Committed to "empowering industries with technology", OKet drives innovation in industrial loT and new materials to deliver safer, more efficient, and eco-friendly solutions. The company aims to be a trusted global partner for intelligent manufacturing and sustainable development.

1999

40%

OKet Since 1999 Production

Fuel Station Market Share

40000+

More Than 40,000 Fuel Stations Installed For Use

2000+

More Than 2000 Chemical plants Implemented and Applied

In 2023, OKet was listed as a supplier of technical equipment for "mechanized replacement of human labor, automated reduction of human labor, and intelligent unmanned operations" by the Shandong Provincial Emergency Management Department and the Shandong Provincial Department of Industry and Information Technology.

The "integrated" standardized control projects for hazardous chemical loading and unloading areas that OKet has participated in have been implemented and applied in more than 2,000 chemical plants.

High-tech Enterprise Certificate

Qualification Certificate for Installation and Repair of Explosion-proof Electrical Equipment

青岛市专精特新中小企业澳科仪器有限责任公司

Certificate of Specialized, Sophisticated, Unique and Innovative Small and Medium-sized Enterprise

GHAANE

After-sales Service Certification

Utility Model Patent for Liquid Loading Controller

Explosion-proof Certificate for Hydrocarbon Gas Detector

Green Enterprise Certification

Utility Model Patent for a Mass Flow Measurement Device

Explosion-proof Certificate for Process Controller

重合同守信用企业认定证书

青岛澳科仪器有限责任公司

Certification of Enterprise Abiding by Contracts and Keeping Promises

Software Copyright Registration Certificate

Explosion-proof Certificate for Crane Return Controller

资信等级证书

Credit Rating Certificate (AAA Level)

中国国家损制性产品认证证书

China Compulsory Certification (CCC) Certificate

Explosion-proof Certificate for Dry/Wet Sensor

Integrated Flowchart of Hazardous Cher Loading and Unloading Products and S

nicals Storage olutions

企业安全生产信息化平台Enterprise Safety Production Informatization Platform

Integrated Loading and Unloading Mana

System Composition

Card Issuing and Receiving System

Drivers swipe their ID cards or enter the card code on the self-service card issuing and receiving machine→the machine provides IC cards and waybill receipts→enter the queue according to the waybill information→drivers wait for notification to enter the factory. It supports manual card issuance, self-service card issuance, card recycling, and printing of loading/unloading waybill information.

Queueing System

Arranges the loading and unloading sequence of vehicles for waybills after card issuance based on the availability of loading arms and priority strategies (customer priority, material priority). Drivers can check queuing status via LED screens, voice broadcasts, text messages, etc.

Access Control System

Automatic Weighbridge System

Manages access by automatically judging the compliance of vehicles entering the factory through license plate recognition or card swiping. Only vehicles with approved waybills in the queuing system can enter or exit.

Composed of weighbridge, license plate recognition, infrared beam devices, and software, it automatically connects with waybill information, confirms waybill vehicles via license plate recognition, and realizes weighing, photo capture, automatic weighing, driver/passenger count recognition, operation guidance, and weighing anomaly prompts.

System Overview

The integrated loading and unloading management system developed by OKet can effectively integrate information flow and operation flow, unify account management, improve loading and unloading efficiency, and reduce safety risks. The management system covers the complete loading and unloading business process, from business reservation, vehicle entry, automatic card pickup to obtain orders, queuing and calling, automatic vehicle weighing, quantitative loading control and safety interlocking, weighbridge bill settlement, unloading anti-mixing, and factory exit. It aims to achieve data flow and intelligent control through cutting-edge technologies and systematic equipment.

Loading Interlocking System

Quantitative Loading System

Controls safety equipment for loading/unloading via a process controller (integrating key management, human static electricity elimination, grounding bolt detection, anti-overflow, etc., with optional connection to loading arm back-place, hydrocarbon gas detection, gas phase sensor monitoring, wheel chock back-place, etc.). Combined with voice reminders and button controls, it standardizes and supervises the operation processes of drivers or operators to enhance intrinsic safety.

Confirms waybill information by swiping an IC card, delivers goods according to the loading plan. The quantitative loading controller works with mass flowmeters, static grounding equipment, control valves, loading pumps, loading arms, and upper computers to collect flow signals. When the loading volume reaches the set value, it automatically stops loading for precise batch control. The system can monitor on-site data, support remote download, disable, and emergency stop.

Unloading Anti-Mixing System

Confirms waybill information by swiping an IC card on the unloading anti-mixing controller, judges the compliance of the unloading position, monitors the unloading operation process, alarms for non-compliance, and realizes automatic interlocking.

Data Management Platform

As the core management platform, it is responsible for user identity management, permission control, data storage and sharing, system configuration, etc., providing basic support for other subsystems. Specific functions include: sales order management, delivery note (reservation order) management, business node processing, and data statistical analysis. Waybills can be newly added, tracked, and summarized directly through the APP/Link.

Integrated Loading and Unloading Man

Application Flowchart

1/Online Loading and Unloading Appointment

• The driver can reserve the arrival time via the APP/Link • Driver and vehicle information maintenance and record management

Appointment review

2/Self-service Card Collection

• Training and test

• Use ID card or SMS code to collect

3/Queue and Wait for Calling • Manual and automatic allocation of positions

• Large-screen display • Speaker prompt • Mobile phone receives reminder

License plate recognition • Barrier gate control

5/First Automatic Weighing • License plate recognition and barrier gate control • Screen and voice guidance Vehicle weight verification • Number of drivers and passengers recognition

• SMS notification

• Driver check-in

Replenish if loading is insufficient

8/Exit the Factory Area

Return the card

• Print documents

• Barrier gate control

7/Second Automatic Weighing

• License plate recognition and barrier gate control

• Screen and voice guidance

•Vehicle loading and unloading quantity analysis

• Number of drivers and passengers recognition

6/Swipe Card for Loading and Unloading

Loading quantity control

• Loading process control

Unloading position and process control

System Features

o Integrated management and control, 360-degree full coverage.

o 24-hour all-weather operation guarantee.

o Strong interface capabilities.

o Good compatibility and expandability.

o Easy to manage and maintain.

o Simple operation, economical and practical.

agement System

System Architecture Diagram

Data Interaction

Browser

APP/Link, APP SMSLCD, LED Screen, Voice

Indicator Light, Buzzer

Service Layer

Enterprise Management stem

Legal Regulatory Environment

Data Display

Purchase and Sales Quantity Analysis

On-site Operation Monitoring

Operation Abnormal Alarm

Dynamic Simulation Monitoring

Business Quantity Analysis

Comprehensive Equipment Management

Unified Risk Monitoring

Information

Data Application

Purchasing Business

Sales Business

Application System

Driver and Passenger Detection

Card Issuing and Receiving

Weighbridge Measurement

Loading and Unloading Process Compliance

Site Management

DCS Inventory

Queuing Strategy

Environmental Detection

Equipment Status

Management,
Maintenance and Operation System

Data Sharing Layer

Information System Security System

Data Processing

Loading and Unloading Database

Other Databases

Data Interaction Bus

Sensors and Instruments

Application Layer

Logistics Equipment System

Information Collection

Collaborative Application

Integrated Loading and Unloading Man

Management Platform

Platform Overview

The integrated loading and unloading management platform is the core of the hazardous liquid chemical storage and transportation management system. It enables full-process management of inbound and outbound shipments based on automated loading/unloading operations.

Platform Functions

Platform modules include: Dashboard, Exception Management, Waybill Management, Waybill Card Issuance, Waybill Approval, Offline Waybills, Weighbridge Management, Loading/UnloadingManagement, Basic Settings, User Permissions, and System Management.

Administrators can monitor waybills and alarms, manage alerts, process waybills, issue/revoke access cards, approve waybills, oversee weighing processes, control loading/unloading operations, and configure parameters via the dashboard. The platform manages all elements in the logistics chain, including waybills, facilities, equipment, drivers, vehicles, and user accounts, with role-based permissions.

Accessible via any computer or explosion-proof mobile device, the system supports hierarchical authority management with custom user roles.

Waybill Management

Loading and Unloading Equipment Management

Weighbridge Application Form Management

Safety Loading and Unloading Interlock

System Overview

OKet's safety loading/unloading interlocking system for hazardous chemicals is an intelligent loading/unloading system designed for production and storage enterprises involving hazardous chemicals. For the loading/unloading process of flammable liquids, liquefied hydrocarbons, and other hazardous chemicals, it uses interlocking automatic control technology to achieve transport medium compliance inspection, human-vehicle static electricity release, vehicle key management, loading arm reset control, anti-overflow, oil and gas recovery, hydrocarbon gas leakage detection, and alarm interlocking with the quantitative loading system.

ing System

11/12

Safety Loading and Unloading Interlock

Process Controller

Specifically designed for vehicle loading and unloading in oil depots/chemical plants, integrating management functions such as key management, human body static electricity elimination, grounding bolt detection, and overflow prevention. At the same time, it can be optionally connected to equipment such as loading arm reset controllers, hydrocarbon gas detectors, gas phase monitoring sensors, anti-mixing controllers, and wheel chock reset controllers. Combined with voice broadcast reminders, indicator light status displays, and key control, it further standardizes and supervises the operation processes of operators during vehicle loading and unloading, improving the intrinsic safety level.

ing System

© Product Functions&Features

Visitor reminder, prompting to eliminate human body static electricity.

Countdown function, ensuring personnel on-duty.

Key management, avoiding vehicle operation without engine shutdown.

Static electricity grounding, reliably eliminating vehicle body static electricity.

Overflow monitoring, preventing overflow accidents.

Intelligent interlock control, enhancing alarm effect.

Integrated design, easy to operate, reducing space.

Multiple configurations available.

Product Selection Guide

Process Controller - Loading Process Schematic Diagram

Safety Loading and Unloading Interlock

Multifunctional Overflow and Static Electricity Controller

Specially designed and developed for the loading and unloading process of hazardous chemicals, integrating functions such as vehicle body static electricity grounding detection, human body static electricity discharge, anti-overflow, and key management. It can display the loading and unloading process and detection status in real-time, and upload the corresponding status to the upper-level computer.

Gas Phase Monitoring Sensor

— Dry Wet Sensor LDA-1

During the loading/unloading process, the dry-wet sensor can continuously detect whether there is liquid in the gas phase loading arm pipeline.

By interlocking with the process controller, when liquid is detected, the process controller will give an audio alarm and interlock to stop the loading/unloading operation.

— Ex-proof Flow Switch FM-A1

The ex-proof flow switch can detect the gas flow in the gas phase loading arm during the loading/unloading process, and output a general dry contact signal, which is transmitted to the batch controller, PLC, and process controller.

During the loading/unloading process, if the ex-proof flow switch does not detect the gas flow in the gas phase loading arm within the expected time, it will output a relay signal to indicate an abnormality, and the corresponding host computer will output an alarm signal.

Safety Loading and Unloading Interlock

Human Body Static Electricity Discharge Controller

OKet Human Body Static Discharge Controller (ESD Series) is an intelligent human body static elimination device, composed of an ex-proof touch ball and a stainless-steel column, etc. When the human body touches the ex-proof touch ball, the controller will safely discharge and ground the static carried by the human body. While effectively discharging the human body static, it reduces the energy of the instantaneous static discharge, avoiding the occurrence of fire and explosion accidents and the phenomenon of human electric shock.

At the same time, the controller can intelligently sense the approach of the human body, and the voice reminds the visitor to discharge static electricity in advance. Moreover, the controller can detect whether the human body static electricity touch ball is usable, and the acousto-optic device indicates whether the static electricity elimination is completed.

Suitable for flammable, explosive and anti-static places.

© Product Advantages

Multi way and intelligent: Acousto-optic prompt, voice reminder or buzzer reminder, multiple warning functions, real-time indication of the equipment working status, convenient and worry-free.

Low power consumption, easy installation: Built-in large-capacity lithium battery and low-power design, no need for external power supply, simple installation.

Touch-type, safer: Touch-type, safer: Touch-type induction, no mechanical moving parts, no electric shock feeling when the human body contacts, safe discharge of static electricity.

Long service life: The whole is sealed with epoxy resin, anti-corrosion, waterproof and moisture-proof.

Small size, light weight.

Safety Loading and Unloading Interlock

Hydrocarbon Gas Detection and Alarm System

OKet's hydrocarbon gas detection and alarm system includes wired and wireless versions.

The system has two parts: the hydrocarbon gas detector (wired or wireless) and the alarm controller (wired or wireless). The detector uses NDIR technology to detect gases like gasoline vapor and hydrocarbons. When gas levels reach the set alarm threshold, it triggers an alarm and sends a signal to the alarm controller and control platform. This allows managers to monitor all sites in real time from one place.

System Composition

© Product Advantages

01 Complies with national standards and is applicable to multiple scenarios.

02 High range and long service life. The hydrocarbon gas detector is based on the non-dispersive infrared absorption principle, with no loss during the detection process and stable status.

03 Friendly display and acousto-optic warning. Real-time display of hydrocarbon gas concentration, multi-level alarm status, and equipped with acousto-optic alarm function.

04 Fault self-inspection, safe and reliable. Supporting self-inspection of fault status, including power failure, circuit failure, etc.

05 Diverse communication, real-time and efficient. The wired hydrocarbon gas detector can support RS485/4-20mA/relay communication methods, and the wireless hydrocarbon gas detector transmits signals via LoRa; the alarm controller reserves a communication interface, supports uploading of alarm information, and can be used in interlock with other monitoring and early-warning systems.

06 Flexible installation, simple and easy to use. Supports multiple installation methods. The wireless hydrocarbon gas detector can achieve wireless communication without being restricted by on-site wiring.

No need to open the cover - the detector can be remotely configured and debugged using a remote control.

Safety Loading and Unloading Interlock

Unloading Anti-mixing Controller

Unloading Anti-mixing Controller (UMPA-100 Series) integrates multiple functions such as vehicle body static grounding detection, human body static discharge, key management, and card-swiping identity verification, and can realize the control of the unloading process and the conformity judgment of medium and loading arm position.

Through automation and informatization means, the Unloading Anti-mixing Controller (UMPA-100 Series) aims to enhance the safety of the unloading process and improve the operation quality and efficiency.

System

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Interlock and Joint Control, High Safety

Interlock and joint control are realized among key equipment, and alarms can be given in a timely manner when abnormal situations occur, improving overall safety.

Clear Process, Easy Operation

Equipped with intelligent screen display, clear voice prompts and multi-function buttons, multiple ways to guide the operation process, making the operation more intuitive and simple.

Modular Design, Strong Expandability

Adopt modular design, flexibly adapt to multiple media and unloading forms, and meet different on-site needs.

Highly Integrated, Space-saving

Support the integration of multiple sensors, such as key management controller, human body static discharger, vehicle body static grounding clips, etc., flexible customization, and realize the maximum utilization of on-site space.

Safety Loading and Unloading Interlock

©Unloading Anti-mixing Controller - Unloading Process Schematic Diagram

©On-site Application

© Product Advantages

01

Unified Loading and Unloading Certification

Use ID cards or IC cards as credentials to ensure the standardization of identity verification. Solidify the loading and unloading process, and verify the matching of medium and loading arm position by swiping the card. If an error occurs, it will be automatically prompted to ensure the accuracy and consistency of operations.

02

Intelligent Unloading Process

Integrate multiple sensing technologies to realize intelligent control of the unloading process. In case of abnormal situations, the system will automatically lock and trigger flexible linkage strategies to ensure safe and efficient operations.

03

Digital Unloading Records

All operation data can be stored, queried, and have a traceability function, effectively improving data management and analysis capabilities.

04

Simplified Prompt Operation

Through human-machine interaction prompts, improve operation efficiency. The system automatically identifies the mismatch of vehicle loading arm platform numbers and reminds in text or voice to ensure that operators correct errors in a timely manner and optimize the operation process.

Unloading Anti-mixing APP

Loading and Unloading Platform Process Monitoring

Loading and Unloading Platform Process Management

Unloading Task

Loading and Unloading Process Approval

Loading and Unloading Platform Process Data Viewing

Message Records

Safety Loading and Unloading Interlock

Loading Arm Back-place Controller

OKet loading arm back-place controller is mainly used with quantitative loading and process control systems. It can detect whether the loading arm is properly back-place during loading and unloading, ensuring the safe control of the effective loading and unloading process.

—Loading Arm Back-place Controller

Can provide liquid phase and gas phase back-place detection. The back-place plate can be connected to international standard API joints.

LED Light Status Description:

Normal connection/back-place: Green light on

Not connected/not back-place: Red light on

The orientation of the loading arm back-place controller joint is adjustable.

Single-phase standalone installation method:

Loading Arm Back-place Controller (Dual-light Dual-detection)

In response to the situation where there is a loading arm back-place ring on site, OKet has designed and developed a loading arm back-place controller similar to a loading arm lock, which consists of a detection unit and a control unit. Use bolts and fixed splints to fix the detection unit on the back-place ring. After the loading arm is properly back-place, the detection unit acts and the indicator light changes from red to green.

Loading Arm Back-place Detection Controller Detection Unit

Control Unit

Site Diagram

—Liquefied Petroleum Gas (LPG) Loading Arm Back-place Controller

For LPG loading arms, it is compatible with DN25, DN50, DN80 LPG loading arm joints. After the loading arm is properly back-place, the indicator light changes from red to green.

Safety Loading and Unloading Interlock

Loading Arm Connection-in-place Sensor

Can detect whether the loading arm is normally connected to the tank truck joint during loading, and output the loading arm connection status signal to the process controller, batch controller and other automatic control systems, effectively realizing loading safety interlock control.

Detection: Loading arm connected status, unconnected status.

Pressure Loading Method

Selection: According to the size of the loading arm joint, 4 models of loading arm connection-in-place sensors are provided for selection: HG-25/HG-50/HG-80/HG-100.

DN50/Copper

DN25/Stainless Steel

Atmospheric Pressure Loading Method

Loading Arm Connection-in-place Detector 1

Loading Arm Connection-in-place Detector 2

Site Picture

System

Wheel Chock Back-place Controller

The Wheel Chock Back-place Controller mainly monitors the position status of the tank truck through the back-place seat and sensor, and is interlocked with other equipment such as the process controller and batch controller, which can effectively prevent the occurrence of safety accidents such as vehicle rolling.

The Wireless Wheel Chock Position Detector

The wireless wheel chock position detectors mainly use built-in sensors to monitor whether the wheel chocks are correctly placed in front of and behind the vehicle tires. Once the position of the wheel chocks does not meet the standards, it will transmit signals to the process controller via wireless communication, realizing the safety interlock of loading and unloading operations.

Explosion-proof Vehicle Barrier

The explosion-proof vehicle barrier is used in hazardous petrochemical areas like tank farms and loading platforms. It receives signals from the overflow static controller and controls the motor to raise or lower the barrier. This prevents drivers from moving the vehicle before loading or unloading is finished, helping avoid accidents like hazardous leaks or damage to the loading arm.

© Product Advantages

The system uses an explosion-proof actuator to drive the vehicle barrier bar, with stable performance.

The shell is electrostatically sprayed and derusted.

Can be interlocked with the overflow-proof and static-proof controller and the quantitative loading controller.

Manual and automatic modes optional.

The length of the vehicle barrier bar can be customized.

Passive switch quantity control method, response time < 1min.

Safety Loading and Unloading Interlock

Product Technical Parameter Summary Table

Product Name	Technical Parameters
1Card Issuing and CollectingIntegrated Machine	19-inch Touch Screen• Operating System: Windows• Working Voltage: 220V AC• Interface: RJ45Network Port、 Serial Port• Memory: 4G, 64G Storage
Unloading Anti-mixingController UMPA-100 Series	• Working Voltage: 220V ACWorking Current: <100mA• Ingress Protection: IP65• Ex-mark: Ex db ib[ia Ga] mb IIB T6 Gb• Operating Temperature: $- 3 0 ^ { \circ } \mathsf { C } { \sim } 6 0 ^ { \circ } \mathsf { C }$ • Relay Output (Pump Control): $= 2 \uparrow$
CProcess Controller UPA-100+	• Working Voltage: 220V AC Working Current: <150mA• Operating Temperature: $- 4 0 ^ { \circ } \mathsf { C } \sim 6 0 ^ { \circ } \mathsf { C }$ • Response Time: $
tMultifunctional Overflow and StaticElectricity Controller UPA-10	• Working Voltage: 220V AC Working Current: <150mA• Operating Temperature: $- 4 0 ^ { \circ } \mathsf { C } \sim 6 0 ^ { \circ } \mathsf { C }$ • Response Time: $
-0Dry-wet Sensor LDA- 1	• Working Voltage: 5V DC±10%Working Current: <20mA• Operating Temperature: $- 4 0 ^ { \circ } \mathsf { C } \sim 6 0 ^ { \circ } \mathsf { C }$ Response Time: <1s• Output Signal: High-Low Level• Explosion-proof Type: Intrinsically Safe
O1 Explosion-proof flow switch FM-A1	• Working Voltage: 24V DC±20% • Working Current: Maximum On-current 4A, Maximum No-load Current 80mA • Operating Temperature: ${ \bf - } 2 0 ^ { \circ } { \bf C } { \bf - } 1 0 0 ^ { \circ } { \bf C }$ Medium Temperature: $\mathopen { } \mathclose \bgroup - 2 0 ^ { \circ } \mathsf { C } \sim 8 0 ^ { \circ } \mathsf { C }$ • Response Time: 1-13s Typical Value 2s • Output Signal: Switch Quantity • Explosion-proof Mark: Ex d IIC T6 Gb • Setting Range: 1-150cm/s (Water); 3-300cm/s (Oil); 20-200cm/s (Air)
Universal technical Parameters of Loading Arm Back-place Controller LAA-200 with Dual-light Dual-detection, and LPG Loading Arm Back-place Controller LAA- 200	• Working Voltage: 5V DC • Working Current: ${
Loading Arm Connection-in-place Controller (Pressure Loading Method) HG-25\ HG-50\ HG-80 \HG-100	• Working Voltage: 5V DC Working Current: <230mA • Operating Temperature: $\scriptstyle - 3 0 ^ { \circ } C \sim 6 0 ^ { \circ } C$ • Response Time: < 2s • Output Signal: High-Low Level • Explosion-proof Type: Intrinsically Safe Type
Loading Arm Connection-in-place Controller (Atmospheric Pressure Loading Method)	• Working Voltage: $2 4 \vee \mathsf { D C } \pm 1 0 \%$ Working Current: < 100mA • Operating Temperature: - 40°C~60°C • Response Time: < 2s • Output Signal: High - Low Level • Explosion-proof Type: Intrinsically Safe Type

Safety Loading and Unloading Interlock

Product Name

Wired Communication Type Hydrocarbon Gas Detector ET01

Wireless Type Hydrocarbon Gas Detector ET01-L

Wireless Type Hydrocarbon Gas Detector BTYQ-ET (Magnetic Suction Version)

Technical Parameters

• Communication Mode: RS485/4-20mA/Relay

• Measurement Range: (0-100) %LEL

• Resolution: 1%LEL

• High-level Alarm: 50%LEL

• Low-level Alarm: 25%LEL

• Measurement Accuracy: ±3%F.S.

• Response Time: ≤30s (T90)

• Ingress Protection: IP65

• Explosion-proof Mark: Ex d IIC T6 Gb

• Operating Temperature: \scriptstyle - 4 0 ^ { \circ } C ~ 7 0 ^ { \circ } C

• Power Supply: 24V

• Communication Mode: LoRa

• Measurement Range: (0-100) %LEL

Resolution: 1%LEL

• High-level Alarm: 50%LEL

• Low-level Alarm: 25%LEL

• Measurement Accuracy: ±3%F.S.

Response Time: ≤30s (T90)

• Ingress Protection: IP65

• Explosion-proof Mark: Ex ib IIC T4 Gb

• Operating Temperature: - 4 0 ^ { \circ } C ~ 7 0 ^ { \circ } C

• Power Supply: Rechargeable Lithium Battery, Usable for 6-12 Months After Single Charge

• Communication Mode: LoRa

• Measurement Range: (0-100) %LEL

• Resolution: 1%LEL

• High-level Alarm: 50%LEL

• Low-level Alarm: 25%LEL

• Measurement Accuracy: ±3%F.S.

• Response Time: ≤30s (T90)

• Ingress Protection: IP68

• Explosion-proof Mark: Ex ib IIC T4 Ga

• Operating Temperature: - 3 0 ^ { \circ } \mathsf { C } ~ 6 0 ^ { \circ } \mathsf { C }

• Power Supply: Disposable Lithium Battery Power Supply, Service Life 3-5 Years

Quantitative Loading System

Quantitative Loading Controller

IC Card Swiping Area

Display Panel

Color LCD Touch Display

QLC-1

© Product Introduction

OKet Quantitative Loading Controller is specially developed for quantitative loading scenarios. It can be used with flow meters, static grounding equipment, control valves, loading pumps, loading arm back-place switches, host computer, etc. at the loading site to collect flow signals. When the loading quantity reaches the set value, it automatically stops loading. It helps the system realize batch precise control of the loading process, improving the safety level and operation efficiency of hazardous chemical loading operations.

© Supports Three Loading Modes

Local Mode: Establish the delivery order directly on the quantitative loading controller, and start loading after obtaining the loading information. Compatible with IC card mode and remote mode. Remote Mode: Establish the delivery order on the management platform software, enter the order number on the quantitative loading controller, and start loading after obtaining the loading information. Compatible with IC card mode.

IC Card Mode: IC Card Mode: Supports card - swiping loading. Identity recognition and loading information reading can be realized through explosion - proof IC cards. It can be switched to the local mode through the software platform.

Main Interface of the Controller

Can intuitively display the loaded quantity, set quantity, flow rate, bill of lading number, and loading time.

The right side of the interface shows the status of sensors involved in the loading interlock. Green indicates normal, red indicates alarm, and yellow indicates the device is not connected.

Contains operation function keys such as start, pause, end, ESC (exit), TAB (switch cursor), ENT (save), number buttons, and characters.

Product Parameters

Quantitative Loading System

© Product Functional Features

01

Quantitative Control: After setting parameters, the controller automatically loads and stops when the set amount is reached.

02

Interlock Control: Supports signal communication with devices like process controllers and interaction with various sensors to achieve overflow interlock, grounding interlock, and emergency stop interlock.

03

Data Collection Function: Capable of collecting flow meter pulse signals, analog signals, medium pressure signals from pressure transmitters, and switch signáls from procéss interlock controllers.

04

Power Failure Protection: Equipped with an internal Siemens PLC, the controller saves parameters during unexpected power outages and can resume operation after power is restored.

05

System Self-Diagnosis: The system automatically checks the quantitative loading controller's operation and provides alerts if any faults occur.

06

History Records Query: The quantitative loading controller can store at least 1,000 historical records, including loading records, delivery notes, alarm logs, parameter settings, and operation logs

07

Multi-Level Access Protection: Allows setting user operation permissions and password management for multi-dimensional, multi-level security.

High Accuracy: PID algorithm with system accuracy of ±1 pulse.

Easy Operation: User-friendly and simple to operate.

Fast Processing: Uses 32-bit Cortex-A7 processor for quick processing and higher work efficiency.

Strong Interlock: Supports connection to various pumps, valves, flow meters, and controllers for robust and reliable interlock interaction.

Strong Interlock: Supports connection to various pumps, valves, flow meters, and controllers for robust and reliable interlock interaction.

Quantitative Loading Controller Management Software System

The quantitative loading controller software, developed by OKet, supports remote monitoring and management of 1 to 50 interlock devices. It offers real-time loading monitoring, flow trends, operation logs, reports, alarm history, and system maintenance. It helps companies ensure safe and remote digital control of hazardous chemical loading.

Quantitative Loading System

AMF Series Mass Flowmeter

AMF series mass flowmeter of OKet adopts Coriolis force principle to design, develop and produce, mainly composed of two parts: sensor and transmitter. It is used to accurately measure the mass flow, density and temperature of fluids.

Transmitter composition

It is composed of circuit module, casing, outlet device and other parts.

Transmitter function

Provide an excitation signal for the sensor drive system to make the measuring tube vibrate.

Calculate mass flow, density, temperature and other parameters according to the sampling signal returned by the sensor sampling system.

Display the parameters through LCD screen in place in real time.

The data can be transmitted to the secondary instrument through 4-20mA, pulse, RS485 and other methods.

Sensor composition

It is composed of connecting flange, shunt, measuring tube, drive system, sampling system, platinum.

resistor, casing, outlet device and other parts.

Sensor function

Provide a rotating system environment for measuring Coriolis force (put the fluid in this environment).

Provide relevant physical quantities reflecting the magnitude of the Coriolis force.

Patent

Invention Patent: An Installation Structure of a Mass Flowmeter

Utility Model: A Flow Tube of a Mass Flowmeter

Qualification Certificate

ISO Triple System (ISO90001, ISO14001, ISO450001) Certification<br>SIL Certification

Quantitative Loading System

© Product Features

High accuracy, suitable for trade transactions

High mass accuracy

Sensor mechanical structure, transmitter circuit and algorithm optimization.

Mass measurement error less than ±0.1%; the repeatability less than 0.05%.

High density accuracy

Real-time high-accuracy online measurement with error less than ±0.0005g/cm³.

No need to open tanks and take samples, safe, convenient, reliable, and environmentally friendly.

Eliminate manual measurement and improve work efficiency.

High temperature accuracy

High-accuracy platinum resistance temperature measurement, algorithm optimization, measurement error better than ±0.2°C.

Range ratio 20:1

• Digital algorithm, high measurement accuracy at low flow rates.

Applicable to a variety of media and process conditions

• Applicable to a variety of fluids and gases, only the installation method is different.

Applicable to a variety of flow ranges and process conditions.

Independent research & development, advanced functions

Intuitive and direct display of mass flow, mass total, volume flow, volume total, density, temperature, directly replace volume flowmeter.

Self-diagnosis function, which can quickly locate and deal with problems, ensures data reliability and prolong effective service time.

Flexible data upload forms, real-time remote transmission to the designated system.

Convenient data exchange with other equipment, and interconnection with interlocking devices such as batch controller and process controller.

Good stability and long lifespan

High sampling rate, short response time and good consistency.

Better structure, circuit and algorithm and zero point stability.

Strict quality control of raw materials and manufacturing links.

No obstructing parts and moving parts inside, no wear and tear, a long service life (12 years).

Quantitative Loading System

Product parameters

Mass low accuracy

Mass flow rate range

Mass flow range ratio and accuracy

Note: The accuracy is the actual measurement accuracy. Since the highest accuracy of JJG1038-2008 Coriolis Mass Flowmeter is 0.15, the accuracy of the relevant certificates and qualifications can only be 0.15.

Environmental restrictions

Other parameters

Vertical Tank Gauge System

RTG Radar Level Gauge

Product Overview

OKet has independently developed various models of radar level transmitters, which are non-contact level measurement instruments realized through radar technology. They can reliably measure the level of liquid and solid media, and maintain stable performance even in harsh environments such as noise, steam, and dust. These transmitters are particularly suitable for measuring various media including crude oil, volatile liquids, slurries, and pulverized coal. Owing to the adoption of electromagnetic wave measurement technology, they can provide accurate measurement results under various working conditions.

Product Category:

• RTG7800 Radar Level Gauge

• RTG6000X Series (RTG6000A/RTG6000B) Radar Level Gauge

Radar signal core processing module (built-in)

● Transmit and receive radar wave signals and calculate product level

• The Data can be transmitted to the secondary instrument through RS485 signal

Lens antenna

• Provide a better beam angle for radar

LCD panel

● Locally display various parameters such as measurement level

● The parameters on the local device can be set by pressing the button

Diagram: RTG7800 Radar Level Gauge

Product Advantages

101:

Small beam angle, concentrated energy, enhanced echo capability and directionality, more conducive to avoiding interference.

02:

More accurate measurement, with higher measurement resolution and accuracy.

03:

Stronger penetration ability, hardly affected by rainwater, condensation, and material buildup.

04:

Corrosion-resistant, high-pressure resistant, and high protection.

05:

Low maintenance, long service life.

06:

Easy to install.

Product Parameters

Safety Tank Storage Solution

VAP-O-LOC Full Composite Material Floating Roof

Product Features

Integrated Unitization

Full composite material integrated molding, high reliability:
1. Rely on the unique thermosetting molding
technology of composite materials to ensure reliable connection between modules, and between
honeycomb materials and upper and lower disk plates. 2. Solve the hidden danger that the spliced Floating Roof may be easy to loosen and fail at the joints.
3. Source emission reduction, eliminate VOCs
emissions at splicing gaps.

Unitized liquid-tight structure, high safety: 1. The hundreds of unit modules composing the Floating Roof are all independent liquid-tight structures, and at the same time, these units are composed of hundreds of thousands of independent and tight honeycomb structures. 2. In case of accident, the liquid inflow caused by any single-point leakage on the Floating Roof will be restricted within the honeycomb unit.

Corrosion Resistance

Corrosion Resistance: The Floating Roof is made of full composite materials, and will not be oxidized like metal. It solves the problem that metal Floating Roofs are easily corroded, and at the same time ensures that the liquid chemical products in the storage tank are kept away from contaminants such as rust.

Good medium compatibility:
Can meet the storage requirements of most liquid chemical products. For special application
occasions, the formula of composite materials can be adjusted accordingly.

High Availability

理度：80=00mm

High buoyancy: The additional buoyancy load can reach 36kg/m².

Low section: The thickness of the floating roof body is only 80-100mm. On the basis of reducing the volume occupation of the storage tank, the utilization rate of the storage tank is improved.

High strength: Can bear a concentrated load of 917kN/0.1m², exceeding the national standard requirements by hundreds of times.

High safety factor: When 12.5% of the Floating Roof support fails, the deformation of the Floating Roof is only 7% of the allowable condition, and the safety factor exceeds 14.

Lifetime maintenance-free.

Service life exceeds 20 years.

The main body of the VAP-O-LOC Floating Roof is a honeycomb sandwich structure made of full composite materials. The modules prefabricated in the factory are integrally formed through thermosetting connection technology, without splicing seams, fully liquid-connected, and integrate multiple advantages such as safety, environmental protection, corrosion resistance, fire resistance and explosion resistance.

Intrinsic Safety

Adopt vacuum infusion technology to ensure the tightness and consistency of the Floating Roof:

1. Module quality is critical: Most new floating roofs use a modular design. If any module leaks, the stored liquid can enter the floating roof module, creating a major hazard.

(Note: Multiple industry accidents have been linked to liquid leakage in floating roof modules.)

2. A&Z creatively uses vacuum infusion technology to produce the modules that make up the floating roof, ensuring long-lasting sealing performance and consistency of the modules.

Overall airtightness testing ensures the structural integrity of the floating

A&Z uses a unique patented structure to test the airtightness of floating roof joints. Combined with ring seal airtightness testing, this forms a closed-loop overall airtightness test system, ensuring the floating roof has reliable and secure sealing performance.

A full-surface resistance reduction process is used to ensure electrostatic safety of the floating roof:
1. A&Z adopts a unique full-surface resistance reduction process to ensure that the overall resistivity of the floating roof remains within 10ªº Ω·m, meeting the requirements for electrostatic semi-conductive materials as specified in GB 12158. 2. The surface wear and local damage of the Floating Roof do not affect the electrostatic discharge.

Fire Resistance and Explosion Resistance

Fire Retardant
1. The overall Floating Roof meets the requirements of relevant standards such as BS476 Part7, ASTM E84, NFPA, UFGS, etc., and the fire-resistant time of the Floating Roof exceeds 2 hours.
2. In 2009, the VAP-O-LOC full composite material Floating Roof has passed the fire resistance test recognized by SGS, TüV certification, and LastFire. 3. In 2021, the VAP-O-LOC full composite material Floating Roof passed the fire resistance performance review in the "Evaluation Outline for Fire
Resistance Performance of New High-efficiency Floating Roofs" hosted by Tianjin Fire Research Institute again. Overall Explosion Resistance
1. The Floating Roof has been proved by sufficient simulation experiments and simulation calculations that it can withstand a transient pressure exceeding 1.5MPa during a flash explosion, and is safe and reliable. 2. The Floating Roof has passed the simulated explosion test verification by Dalian University of Technology.
3. A&Z has carried out research on the explosion-resistance evaluation system of new high-efficiency Floating Roofs in cooperation with China University of Petroleum, Northeast Petroleum University, and the Logistics Academy of the People's Liberation Army Army.

Convenient Installation

Flexible installation, short construction period, high efficiency;
Low cost, no hot work, no electrical work required.

Safety Tank Storage Solution

Product Features

Widely Adaptable to Storage Tanks of Various Diameters, Especially Suitable for Large-Diameter

Storage Tanks

Box Girder Reinforced Structure, Ensuring High Overall Strength of the Floating Roof

The VAP-O-LOC full composite material Floating Roof is installed relying on a durable and reliable thermosetting system, and has a box girder reinforced structure integrally formed with the Floating Roof, with high overall strength.

Each side of each factory - prefabricated module is reliably connected to the box girder reinforced structure, with no weak links.

The VAP-O-LOC full composite material Floating Roof has passed the safety assessment of quantitative analysis and qualitative analysis

河北澳科中童环保科技有限公司复合材料浮盘

安全性评价报告

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