セムコ List of Products and Services

Our company leverages the extensive know-how gained from developing liquid level gauges for the maritime industry, and we have a wealth of achievements in proposals aimed at improving efficiency and reducing labor in "liquid level measurement." Currently, we are offering materials that introduce our initiatives towards promoting DX, as well as ten case studies and problem-solving examples, including: - "Reducing maintenance costs for liquid level gauges in food tanks" - "Streamlining processes after measurement" - "Improving visibility of tank liquid level" We can support everything from sensors to the entire system and software development, listening to your concerns and developing solutions while grasping the overall picture. [Contents (excerpt)] "DX Transformation in White Companies" - Digitization of internal order files - Document management using cloud services for business app development "Case Studies on Efficiency and Labor Reduction in Liquid Level Measurement" - "I want to achieve efficiency in oil delivery" - "I want to prevent pump troubles through efficiency in tank liquid level measurement" - "I want to achieve efficiency in tank liquid level measurement" - "I want to see the liquid level at eye level" - "It’s difficult to see the liquid level with transparent liquids" *You can view the materials from the download button below.

• Other measurement, recording and measuring instruments

The cloud-based tank level monitoring app is a service that allows you to measure and check how much liquid is inside a tank. When conducting kerosene delivery operations, the traditional method required checking the tank levels on-site in all areas and refueling accordingly. However, by using this product, you can check the tank liquid levels in advance and efficiently plan delivery and collection routes. If you are having trouble managing tank levels for kerosene delivery, waste oil collection, agricultural tanks, factory tanks, etc., please make use of this service. 【Features】 ■ Reduction of oil inventory ■ Reduction in the number of deliveries, allowing for more efficient operations. ■ Automatic measurement of liquid levels ■ Simple and easy to read *For more details, please refer to the PDF document or feel free to contact us.

• Embedded applications for mobile phones and PDAs

Our company utilizes the extensive know-how gained from the development of liquid level gauges for the shipping industry, and we have a wealth of achievements in proposals aimed at improving efficiency and reducing labor in "liquid level measurement." Currently, we are offering materials that summarize case studies and examples of problem-solving. We introduce a total of 10 cases, including reducing maintenance costs for liquid level gauges in food tanks, simplifying processes after measurement, and improving the visibility of tank liquid level. We can support everything from sensors to the entire system and software development, listening to your concerns and developing while grasping the overall picture. [Contents of the materials (excerpt)] ■ "I want to achieve efficiency in oil delivery." ■ "I want to prevent pump troubles by improving the efficiency of tank liquid level measurement." ■ "I want to achieve efficiency in tank liquid level measurement." ■ "I want to see the liquid level at eye level." ■ "With transparent liquids, the liquid level is hard to see." *You can view the materials from the download button below.

• Other measurement, recording and measuring instruments

TaVCal (Tank Volume Calculating App) is software designed to simplify the process after liquid level measurement. Traditional liquid volume management methods have faced many challenges, such as errors occurring during conversion after measurement and taking time to record. With TaVCal, you only need to input the measured liquid level height into a form, and it automatically calculates the liquid volume. By recording the results, it also automatically generates reports. We also accept customizations tailored to your specific situation. *For more details, please watch the video or feel free to contact us.*

• Data conversion software

This document is a collection of case studies that introduces examples of solving problems using the experience we have cultivated with IT and sensing technology. We can consistently assist from sensors to the entire system and software development, allowing us to grasp the overall picture together and proceed with development. Please take a moment to read it. 【Featured Case Studies】 ■ Want to improve delivery efficiency ■ Want to prevent pump troubles by streamlining tank liquid level measurement operations ■ Want to achieve operational efficiency in tank liquid level measurement ■ Achieving operational efficiency in tank liquid level measurement tasks and accurate measurements ■ Want to measure air pressure in negative pressure compartments on board a ship *This document can be viewed via "PDF Download." A comprehensive catalog of liquid level measurement devices and monitoring systems is also available.

• Level gauges and level switches

This document highlights five case studies on the use of liquid level gauges in environments with severe vibrations and high-corrosive liquids. If you are looking for improvements in safety, work efficiency, or maintenance efforts related to liquid level measurement, please take a look. 【Featured Case Studies】 ◎ Improvement in safety by switching from glass liquid level gauges to float-type liquid level gauges ◎ Reduction of maintenance efforts through the use of ultrasonic liquid level gauges ◎ Enhanced visibility of liquid level in transparent liquids ◎ Non-contact measurement of liquid levels in corrosive liquids ◎ Liquid level measurement in a temperature range of -200 to +450°C *This document can be viewed via "PDF Download." A comprehensive catalog of liquid level measurement devices and monitoring systems is also available.

• Other measurement, recording and measuring instruments

The portable tank level gauge "Smart Sounding Scale Honesty" is widely adopted by commercial ships navigating around the world and vessels of the Coast Guard, contributing to the "reform of ship operations." 【Features】 ■ Easy → The sensor at the tip of the measuring device alerts you with a lamp and buzzer as soon as it reaches the liquid level. Accurate and quick measurements can be made without any skills or experience. ■ Short Time → Measurement time per tank is significantly reduced to about 1/4 compared to conventional methods (according to our research). ■ Accurate → It measures only the actual liquid level without reacting to bubbles formed on the liquid surface. 【Usage Examples】 ■ Ship Fuel Measurement → Accurately measures the actual liquid level while ignoring bubbles on the liquid surface (countermeasures for cappuccino bunkers). ■ Level measurement of transparent liquids (MGO (Marine Gas Oil), ballast water (seawater), fresh water, etc.) ■ Overflow Alarm → Set the sensor at the planned liquid level position, and it will sound an alarm when the liquid level reaches that position (e.g., during marine fuel replenishment). *For more details, please download the PDF or feel free to contact us.

• Other food machinery
• Other work tools
• Other measurement, recording and measuring instruments

We would like to introduce a case study on solving issues with marine engine room tanks. Previously, crew members had to climb ladders to check the liquid level in the tanks using glass level gauges, which led to the concern of wanting to "see the liquid level at eye level." As a solution, we adopted a box-type float level gauge, allowing for the display to be checked at eye level, which improved efficiency and enhanced work safety. 【Overview】 ■ Case: Marine engine room tank ■ Concern: Wanting to see the liquid level at eye level ■ Proposed product: Float level gauge - By installing the tank level indicator in an easily visible position, safe confirmation of the liquid level can be achieved. *For more details, please refer to the PDF document or feel free to contact us.

• Level gauges and level switches

We will introduce a case study of problem-solving for a sake manufacturer. Due to the use of a float-type liquid level gauge, significant costs were incurred every year for the maintenance and cleaning of the moving parts. Therefore, we proposed an external ultrasonic liquid level gauge. Since there is no need to install a sensor inside the tank, it is easier to maintain and does not require frequent cleaning, which can reduce maintenance costs. [Overview] ■ Case: Sake Manufacturer ■ Concern: Want to reduce maintenance costs for food tanks ■ Proposed Product: Ultrasonic Liquid Level Gauge (External Type) - By attaching the sensor to the outside of the tank, the liquid level inside the tank can be measured. *For more details, please refer to the PDF document or feel free to contact us.

• Level gauges and level switches

We would like to introduce a case study that solved the concerns of a chemical manufacturer (sodium hypochlorite tank). There was an issue with using a glass liquid level gauge, as the liquid was transparent and difficult to see. Therefore, we proposed a diaphragm liquid level gauge. It allows for easy visibility of the liquid level at a glance from one location and is also easy to install. [Overview] ■ Case: Chemical manufacturer (sodium hypochlorite tank) ■ Concern: Transparent liquid makes it difficult to see the liquid level ■ Proposed product: Diaphragm liquid level gauge - No power supply required and easy to install *For more details, please refer to the PDF document or feel free to contact us.

• Level gauges and level switches

We would like to introduce a case that solved issues with tanks containing highly corrosive liquids. "There was a problem where the parts in contact with the liquid in the type that measures liquid levels by direct contact are prone to damage due to corrosion and need to be replaced frequently." Therefore, we proposed a radar level gauge. By installing it on the tank top, measurements can be taken without contacting the liquid. 【Overview】 ■ Case: Tank for highly corrosive liquids ■ Issue: Want to measure the liquid level without direct contact with the highly corrosive liquid ■ Proposed product: Radar level gauge - Can measure the liquid level without direct contact with the liquid *For more details, please refer to the PDF document or feel free to contact us.

• Level gauges and level switches

We would like to introduce a case study that solved the issue of wanting to improve delivery efficiency. Previously, it was unclear how much oil needed to be replenished without physically checking the oil level in the tank, leading to purchasing excess oil for delivery, which resulted in worsened cash flow and the occurrence of leftover oil disposal. To address this, we implemented a remote liquid level monitoring system using the cloud. This led to a reduction in oil inventory and a decrease in the number of deliveries. [Overview] ■ Case Study: Oil Delivery and Waste Oil Collection ■ Concern: Wanting to improve delivery efficiency ■ Proposed Product: Remote Liquid Level Monitoring System (Cloud Version) - Can reduce unnecessary deliveries and excess oil inventory. *For more details, please refer to the PDF document or feel free to contact us.

• Other security and surveillance systems

We would like to introduce a case that solved the issue of wanting to prevent pump troubles by improving the efficiency of tank liquid level measurement. Crew members were unable to accurately calculate the timing of when the ballast tank would run out of liquid, leading to the pump running dry and causing pump troubles. To address this, we implemented tank capacity calculation software (tank app). With automatic calculations and records, as well as a clear overview of the total ballast remaining, it is possible to calculate the time for complete discharge and prevent pump troubles. 【Overview】 ■ Case: Ship ballast tank ■ Concern: Wanting to prevent pump troubles by improving the efficiency of tank liquid level measurement ■ Proposed product: Tank capacity calculation software (tank app) - No time spent on recording or calculations - Time saved can be used for other tasks - If tank data is in digital format, it can be automatically read *For more details, please refer to the PDF document or feel free to contact us.

• Other operation management software

We would like to introduce a case that solved the issue of wanting to improve the efficiency of tank liquid level measurement operations. Previously, measuring the liquid level in the tank, calculating the volume, and preparing records and documents for tax submission were all done by hand, which was time-consuming. To address this, we implemented tank volume calculation software (Tank App). It allows for automatic calculations and records, and reports can be generated with the push of a button, significantly reducing the time spent on tank calculations and document preparation. [Overview] ■ Case: Sake Tank ■ Issue: Wanting to improve the efficiency of tank liquid level measurement operations ■ Proposed Product: Tank Volume Calculation Software (Tank App) - No time spent on bookkeeping or calculations - Time saved can be used for other tasks - If tank data is in digital format, it can be automatically read *For more details, please refer to the PDF document or feel free to contact us.

• Other operation management software

We would like to introduce a case study that addresses the challenges of improving the efficiency of tank liquid level measurement operations and achieving accurate measurements. In the fuel tank, bubbles formed on the liquid surface, and when measured with conventional scales, the height of the bubbles was also counted, resulting in paying for that volume as fuel costs. To solve this, we introduced the smart sounding scale "Honesty." It does not react to bubbles and can accurately measure the liquid level, reducing the conventional measurement time by about 75%. 【Overview】 ■ Case Study: Marine Fuel Tank ■ Challenge: Improving the efficiency of tank liquid level measurement operations and achieving accurate measurements ■ Proposed Product: Smart Sounding Scale "Honesty" - The sensor at the tip of the measuring device does not react to bubbles and accurately captures the actual liquid level. - Over 1,000 units have already been delivered and installed on more than 500 vessels. *For more details, please refer to the PDF document or feel free to contact us.

• Other measurement, recording and measuring instruments

We would like to introduce a case that solved the problem of measuring the air pressure in a negative pressure compartment on a ship. There was a need to create a negative pressure compartment on the ship, but there were no sensors that could stably measure indoor air pressure despite the ship's swaying and vibrations. As a result, we decided to introduce a pressure sensor that can provide stable signal output even in the ship's environment. It can maintain stable output even in situations with ship movement and vibrations. 【Overview】 ■ Case: Indoor pressure monitoring in a negative pressure compartment on a ship ■ Problem: Wanting to measure air pressure in a negative pressure compartment on the ship ■ Proposed product: High-precision pressure sensor - Stable output even in situations with ship movement and vibrations - By integrating the system, it is also possible to link with other devices such as air conditioning fans *For more details, please refer to the PDF document or feel free to contact us.

• Sensors

This product is a system designed for the efficient stable navigation and cargo handling of vessels. It remotely opens and closes valves to intake and discharge seawater in the ballast tank. When there is no cargo listed on the vessel, seawater is added to the ballast tank to lower the ship's center of gravity, creating a stable operating posture. During cargo loading, ballast water is discharged while cargo is being loaded. 【Features】 ■ Customizable according to customer specifications ■ Remote opening and closing of valves without manual operation ■ Real-time monitoring of the liquid level in the tank, allowing for valve operation accordingly *For more details, please refer to the related link page or feel free to contact us.

• Remote Control
• Other process controls

Semco Co., Ltd. has established a strong track record as a measurement instrument manufacturer since its founding, with numerous adoptions in almost all shipyards in Japan. Drawing from our experience in liquid level measurement in the harsh environment of shipbuilding, we are now also being adopted by companies in other industries such as power, environment, and food. If you have any concerns such as: "I am struggling with liquid level measurement in harsh environments" "I want to measure liquid levels while maintaining sanitary hygiene" Please feel free to contact us.

• Level gauges and level switches

The float-type level gauge "Fig.6000" is a float-type level gauge that measures and manages liquid levels. A float floating on the liquid surface is directly connected to a display unit via a wire, allowing real-time display of the liquid level position. This product has already established itself as a standard in the maritime industry, but it can flexibly accommodate various applications and installation conditions, making it suitable for a wide range of industrial fields. 【Features】 ■ Simple mechanical structure makes it robust and easy to maintain. ■ No power or air source required. Energy-efficient and economical. ■ Compact size. ■ Up to four electrical contacts can be installed. Easy to change or replace contact positions. ■ Various installation methods reduce dangerous tasks and burdens for the measurer. ■ Capable of outputting analog signals (DC 4-20mA, 2-wire). Monitoring on-site or management via PC terminals is also possible. ■ Vertical ribbon type with tank height/capacity scale. ■ The installation position of the level indicator is flexible, facilitating plant design. ■ Equipped with a float operation confirmation device. *For more details, please download the PDF or feel free to contact us.

• Level gauges and level switches

The 1/2 scale liquid level gauge with guide rail PCT (A) is a completely sealed liquid level gauge that does not allow air from the tank to escape to the outside. It detects the liquid level using a float that is buoyed in the tank, and displays the liquid level through a weight directly connected to a wire. The liquid level is indicated using a balance weight connected to the float. Additionally, for tall tanks, a scaled guide rail and scale board can be installed, allowing for placement in an easily visible position. ★ For heated tanks It prevents the retention of vapor, condensate, and mist within the tank. 【Features】 ■ Completely sealed, preventing air from escaping the tank ■ Uses a scaled scale board that can be monitored at eye level ■ The scale board is large and easy to see from a distance ■ No power source or air source required for operation High installation flexibility, energy-saving, and economical ■ Contact installation is possible, allowing for alarm and control settings *For more details, please download the PDF or feel free to contact us.

• Level gauges and level switches

The "Direct-acting Float Type Liquid Level Gauge DF" is a type that indicates the liquid level with a float and shaft in direct motion. It is an eco-friendly type that does not require power sources such as electricity or air. It can provide not only liquid level indication but also contact output. It has a proven track record in many power plants. 【Features】 ■ Direct motion of the float and shaft for liquid level indication ■ Does not require power sources such as electricity or air ■ Capable of providing contact output in addition to liquid level indication ■ Has a proven track record in many power plants *For more details, please refer to the external link page or feel free to contact us.

• Other measurement, recording and measuring instruments

The liquid pressure in the tank is detected by a diaphragm, and the capacitance changes as the distance between the two electrodes arranged in parallel inside changes. An analog signal of 4-20 mA is also output from the center, transmitting and displaying the liquid level in the tank to monitoring panels, etc. It is possible to provide not only the sensor but also a system that includes a display unit. <Features> ■ Compact size and robust structure make installation and maintenance easy. ■ The sensor part is protected, making the diaphragm less prone to damage. ■ Various mounting methods are available, allowing for adaptation to different installation environments. *For more details, please refer to the PDF materials or feel free to contact us.

• Other electronic parts
• transformer

This product detects the hydraulic pressure in the tank with a diaphragm and transmits the pressure to the Bourdon tube inside the level indicator through the enclosed liquid. It is a diaphragm-type level gauge that can display the liquid level by rotating a gear. With a simple structure and compact size, it is easy to install. Additionally, the display position can be freely set, eliminating the need for wraps or other installations even in high tanks, and it does not require a power source or air source, making it energy-efficient and economical. <Features> ■ Simple structure ■ Compact size ■ Easy to install ■ Energy-efficient and economical ■ No need for wraps or other designs even in high tanks *For more details, please refer to the PDF document or feel free to contact us.

• Level gauges and level switches
• Weighing Machine

Semco Co., Ltd. offers "glass-type level gauges." You can directly check the liquid level inside the tank through the glass. Additionally, our company has been involved in liquid level detection and control for many years. With the technology and know-how cultivated through experience, we would like to assist various customers in solving their challenges. *For more details, please refer to the external link page or feel free to contact us.

• Other measurement, recording and measuring instruments

"Honesty" is a sounding measure equipped with a liquid contact sensor at the tip of the conventional sounding measure, enabling a reduction in measurement time and accurate reading of the level. When the sensor reaches the liquid surface, it notifies you with a line and a buzzer. The value on your measure at this time is the level. 【Features】 ■ Can read the level simultaneously with the liquid contact at the tip of the measure ■ Does not react to bubbles, only responds to the actual liquid surface ■ Uses readily available dry batteries as power source ■ Approved by the Nippon Kaiji Kyokai (NK) ■ The measure employs a fiberglass tape that excels in flexibility and strength *For more details, please download the PDF or feel free to contact us.

• Other food machinery
• Other work tools
• Other measurement, recording and measuring instruments

The "bar graph type indicator" is a level gauge that displays a bar that moves up and down in response to an input analog signal corresponding to the current value. The input signals can include not only current values but also voltage, PT100, pulse signals, etc., and the output signals can accommodate a variety of input and output signals such as current values and RS485. Additionally, our company has been involved in the detection and control of liquid levels for many years. With the technology and know-how cultivated through experience, we aim to assist various customers in solving their challenges. 【Features】 ■ The bar of the indicator moves up and down according to the current value ■ Capable of accommodating a variety of input and output signals *For more details, please refer to the external link page or feel free to contact us.

• Other measurement, recording and measuring instruments

This product is a float-type vertical level switch. It is commonly used in marine environments. Semco Co., Ltd. has been involved in liquid level detection and control for many years. We would like to assist various customers in solving their challenges with the technology and know-how cultivated through our experience. *For more details, please refer to the external link page or feel free to contact us.

• Level gauges and level switches

This product is a horizontal level switch that is mounted from the side of the tank. It uses a high-capacity micro switch and is commonly used in marine environments. Semco Co., Ltd. has been involved in liquid level detection and control for many years. With the technology and know-how cultivated through experience, we aim to assist various customers in solving their challenges. *For more details, please refer to the external link page or feel free to contact us.

• Level gauges and level switches

This product is a contact-type ultrasonic level switch. It can handle temperatures from -200 to 450°C. It accurately detects liquid levels even in high-viscosity liquids or when there are bubbles on the surface. Semco Co., Ltd. has been involved in liquid level detection and control for many years. We aim to assist various customers in solving their challenges with the technology and know-how cultivated through our experience. 【Features】 ■ Contact type ■ Can handle temperatures from -200 to 450°C ■ Accurately detects liquid levels even in high-viscosity liquids or when there are bubbles on the surface *For more details, please refer to the external link page or feel free to contact us.

• Other energy equipment
• Level gauges and level switches

If you have any questions regarding the introduction below, please feel free to contact us.

• Liquid level control/level switch

The product is designed to respond to incidents such as maritime accidents, where seawater floods the interior of the ship. The installed sensors will react and send an alarm to the bridge. It is also equipped with a function to remotely drain the flooded seawater from the ship's interior to the exterior. After installation or during regular inspections, it can be easily tested with a handheld screwdriver without using air or water. Since it became mandatory under the SOLAS regulations of the IMO (International Maritime Organization) in 2004, it has been adopted by numerous vessels. 【Features】 ■ No need for an air source or special tools; inspections after installation can be performed easily and quickly with commonly used tools. ■ Being float-type, the structure is simple. Even crew members with limited engineering knowledge can easily conduct inspections and maintenance. *For more details, please refer to the PDF document or feel free to contact us.

• Wastewater/wastewater treatment equipment