村山電機製作所 List of Products and Services

Murayama Electric Manufacturing Co., Ltd. has been providing measuring instruments used in various parts of ships, such as temperature gauges for marine and fishing purposes, as well as for engine rooms, fish holds, refrigeration units, and seawater temperature measurement, since its establishment in 1939. In addition, we respond meticulously to customer requests by manufacturing custom measuring instruments, continuing the sale of existing products, and providing after-sales service. We will continue to enhance our skills in collaboration with our sales, design, and manufacturing departments for the benefit of your work and the end users who await. 【Business Activities】 ■ Manufacturing, sales, and repair maintenance of electrical measuring instruments *For more details, please refer to the PDF document or feel free to contact us.

• Recorders

The "MM-18" is a multi-channel monitor for digital thermometers that allows for the use of K-type thermocouples for high-temperature measurements and platinum resistance thermometers for low-temperature measurements. It can centrally manage temperatures from up to 18 channels, such as exhaust temperature, turbocharger temperature, and cooling water temperature. Additionally, we also offer the small monitor series "SM-9H/SM-9R" and "SM-14," which can measure temperatures from up to 9 channels simultaneously. 【Features】 ■ Electric digital thermometer ■ Excellent visibility with LED display ■ Compatible with both K-type thermocouples and platinum resistance thermometer sensors ■ 3-digit display (-99 to 999℃) Display resolution: 1℃ *For more details, please refer to the PDF document or feel free to contact us.

• Thermometer

The "GM-18R/GM-9R" is a digital thermometer for fish holds that allows for accurate measurements using Pt temperature resistance sensors. The "GM-18R" can display temperature measurements for up to 18 channels, while the "GM-9R" can display up to 9 channels simultaneously. It can continuously display upper and lower layer temperatures as well as left and right temperatures without the need to switch between settings, and it features excellent visibility with LED display. 【Features】 ■ Electric digital thermometer ■ Simultaneous display of 18 or 9 channels ■ Excellent visibility with LED display ■ Accurate measurements using Pt temperature resistance sensors ■ 4-digit display (-99.9 to 999.9℃) Display resolution: 0.1℃ *For more details, please refer to the PDF document or feel free to contact us.

• Thermometer

This document introduces the development of an alternative thermometer that achieves vertical dimensions equivalent to those of mercury thermometers, along with heat resistance and vibration resistance. The dimensions (height) are equivalent to those of conventional mercury thermometers, featuring a mechanical structure with mounting screws that allow for direct replacement of mercury thermometers. The goal is to develop an electronic thermometer with a 10-year power supply life and a structure that is resistant to engine vibrations and heat. [Contents] ■ Introduction ■ Introduction of New Technology ■ Efforts Toward Productization *For more details, please refer to the PDF document or feel free to contact us.

• Thermometer

The "SM-9R" is a digital thermometer that uses a Pt100 temperature measuring resistance. The monitor features an LED display with excellent visibility and can display up to 9 channels simultaneously. It can show temperatures from -99 to 999°C in a 3-digit format (display resolution of 1°C), and can be upgraded to a 4-digit display (display resolution of 0.1°C) as an option. It is suitable for simultaneous display of multiple locations such as intake and exhaust temperatures, cooling water temperatures, and fish hold temperatures, as well as serving as a replacement for mercury thermometers in marine engines. 【Features】 ■ Simultaneous display of 9 channels ■ Excellent visibility with LED display ■ Accurate measurements with Pt100 temperature measuring resistance. Ni-100 compatibility is also available as an option ■ 3-digit display (-99 to 999°C) ■ Display resolution: 1°C * 4-digit option display resolution: 0.1°C * For more details, please refer to the documentation. Feel free to contact us with any inquiries.

• Thermometer

The mercury replacement thermometer "YMT-700/YMT-700W" is an electronic paper thermometer that can serve as a substitute for mercury thermometers, in compliance with the "ban on the manufacture of mercury products" effective from December 31, 2020. The temperature is displayed using a bar and numbers, allowing for intuitive information grasping. Additionally, it features a patented 300℃ heat-resistant "insulation separation structure" in the screw part, which reduces heat transfer to the display. The "YMT-700" is designed for installation in existing wells, while the "YMT-700W" is a protective tube (with well) type. 【Features】 ■ Compact dimensions equivalent to mercury thermometers ■ Highly visible electronic paper display ■ Convenient bar graph display for intuitive understanding ■ Easy-to-read digital number display ■ Accurate measurement with K-type thermocouple ■ Wide measurement temperature range (-5 to 725℃) *For more details, please refer to the PDF materials or feel free to contact us. *Technical documentation is also available.

• Thermometer

The "MM-18" is a multi-channel monitor for digital thermometers. It is a product developed in response to the ban on the manufacture of mercury products at the end of 2020. It is suitable as a replacement for mercury thermometers in marine engines. In addition to being able to centrally manage temperatures from up to 18 channels, such as exhaust temperature, supercharger temperature, and cooling water temperature, it allows for the use of K-type thermocouples for high-temperature measurements and Pt temperature resistance sensors for low-temperature measurements. 【Features】 ■ Electric digital thermometer ■ Easy-to-read 18-channel simultaneous display ■ Excellent visibility with LED display ■ Accurate measurements using K-type thermocouples and Pt temperature resistance sensors ■ 18 channels, 3-digit display (-99 to 999°C) ■ Display resolution: 1°C (4-digit option display resolution: 0.1°C) *For more details, please refer to the PDF document or feel free to contact us.

• Thermometer

The "SM-14" is a sub-monitor for digital thermoelectric thermometers. As a product designed to comply with the ban on mercury products at the end of 2020, it is ideal as a replacement for mercury thermometers used in marine engines. It can centrally manage temperatures from up to 14 channels, including exhaust temperature and turbocharger temperature. Additionally, it can be connected in parallel with existing sensors (thermocouples). 【Features】 ■ Digital thermoelectric thermometer ■ Easier to read with simultaneous display of up to 14 channels ■ Excellent visibility with LED display ■ Accurate measurement with K-type thermocouples ■ 14 channels with 3-digit display (-99 to 999°C) ■ Power supply: DC24V or AC100-220V *For more details, please refer to the PDF document or feel free to contact us.

• Thermometer

The "DS-2 and DS-2N" are high-reliability water temperature gauges designed for high performance, easy readability, and low failure rates, with the capability to perform battery checks, ensuring they meet your needs. The "DS-2N" comes standard with NMEA-0183 output. This allows you to incorporate water temperature information into fish finders and plotters with NMEA-0183 input functionality, enabling the display of the latest water temperature data. Please make use of this for improving catch rates through early detection of fishing grounds and for saving fuel costs. 【Features】 - Adoption of LSI technology maintains high accuracy over extended periods. - Display using high-brightness, large red LEDs makes it easy to read both at night and during the day. - Wide power supply voltage range allows for use without switching from DC 10V to 32V. - In addition to water temperature measurement, it includes a battery check function that allows for easy measurement of the supply voltage at any time. *For more details, please contact us.

• Thermometer

Since our company launched electric water temperature gauges for fishing boats in 1949, we have manufactured and released various types of electric water temperature gauges, receiving support from many sectors. The portable (carry-type) simple mid-water thermometer "HW-50/HW-100" introduced here is a mid-water thermometer that achieves easy operation and compact lightweight design. It is expected to be used in various applications such as understanding fishing ground conditions, exploring mid-water fish, measuring temperature in boreholes, and temperature measurement for dam management. We hope you will make good use of it. 【Features】 - A portable type that achieves easy operation and compact lightweight design compared to conventional mid-water thermometers. - Integrated with a winding drum and features a double waterproof structure, making it usable in splash-prone areas. - The display is a digital LCD, eliminating reading errors. - High accuracy of ±0.2℃ and resolution of 0.1℃ (when between 0 to +40℃). - The sensor's response speed is also sensitive with a time constant of 3 seconds. For more details, please download the materials or contact us.

• Thermometer

Analog instruments allow for easy visual confirmation of numerical changes and have advantages that digital instruments do not possess. Murayama Electric Manufacturing Co., Ltd. leverages its years of experience and achievements to manufacture and sell analog meters. When deciding on the design of measuring instruments, the selection of the indicator gauge becomes a very important point. By adopting a simple design frame-type meter, we believe that a unified design for the measuring instruments you design will emerge, further emphasizing their excellence. We offer three sizes depending on the size of the panel to be installed. Please contact us for more details.

• Other measurement, recording and measuring instruments

Analog instruments have the advantage of allowing for easy visual confirmation of numerical changes, which is not found in digital devices. Murayama Electric Manufacturing Co., Ltd. utilizes its many years of experience and achievements to manufacture and sell analog meters. When deciding on the design of measuring instruments, the selection of the indicator gauge becomes a very important point. By adopting this BM series, which is characterized by its sophisticated design, we believe that a unified design for the measuring instruments you design will emerge, further emphasizing their excellence. We offer three sizes according to the size of the panel to be installed. *For more details, please contact us.*

• Other measurement, recording and measuring instruments

The "DP Series" is a compact and lightweight portable digital thermometer that is also high-performance. It features a splash-proof design, making it safe to use in areas where water droplets may occur, such as on boats and in workspaces. Additionally, the sensor can be easily attached and detached. The DP Series offers five types based on the specifications of the main unit and sensor. Please check the sensor used and the measurement range to select the thermometer that suits your needs. 【Features】 ○ Compact and lightweight, making it convenient to carry. Also high-performance. ○ Splash-proof design allows safe use in areas where water droplets may occur on boats and in workspaces. ○ Easy attachment and detachment of the sensor. ○ Comes with a convenient strap for portability. ○ LCD display that is easy to read in bright conditions. *For more details, please contact us.

• Other measurement, recording and measuring instruments

The "MKR-3" is a graphic recorder (paperless recorder) equipped with a large LCD display that offers excellent visibility and allows for easy operation of various functions and settings. With a touch panel, complicated operations are unnecessary. You can switch to the screen you want to see simply by touching it with your finger. 【Features】 ○ Easy operation allows for various functions and settings Equipped with a large LCD display that offers excellent visibility ○ Achieves high noise resistance and high precision of ±0.1% with fast recording at 100ms for all points ○ Allows individual settings for recording cycles and start/stop for multiple registered recording groups ○ Comes standard with a variety of functions, including calculation and alarm features ○ Standard Ethernet support, compatible with LAN environments, providing convenient and robust network functionality ○ Supports CompactFlash cards (CF cards) and USB memory ○ Rich display functions to accommodate diverse data monitoring Capable of displaying 56 measurement data points simultaneously, as well as trend displays *For more details, please contact us.

• Recorders

The "Temperature Recorder CMK Series" is a full-fledged process recorder with a width of 180mm, developed with a focus on ease of use and reliability. Its range of applications is broad, primarily centered around temperature and pressure, making it ideal for various uses such as marine internal combustion engines and refrigerators. 【Features】 ○ External dimensions are DIN size 288×288mm ○ The rocker-type storage allows for easy maintenance after panel installation ○ Insertion and replacement of consumables can be done with a single touch ○ Pad mechanism prevents dot misalignment ○ Clear dot recording with a diameter of 0.2mm ○ Disposable pens are suitable for long-term recording *For more details, please contact us.

• Recorders

The "Hybrid Recorder CHMK Series" is a hybrid recorder with a 180mm chart that achieves easy operation comparable to that of an analog recorder. It is available in 6-point, 12-point, and 24-point dot models. Simply turn on the power to start recording immediately; no complicated settings are required. With a depth of 195mm, it is ultra-slim and lightweight. It takes up minimal space for panel instrumentation and can be easily installed. The analog scale suitable for the measurement input allows for quick reading of measurements at a glance. For more details, please contact us. 【Features】 - Start recording immediately by simply turning on the power; no complicated settings needed. - Ultra-slim with a depth of 195mm and lightweight. - Takes up minimal space for panel instrumentation and can be easily installed. - Quick reading of measurements at a glance with an analog scale suitable for the measurement input. - Equipped with user-friendly features such as skip function, digital recording, date and time printing, and key lock (with digital display). *For more details, please contact us or download the catalog.

• Recorders

The "SBT-500" is a super compact depth and temperature gauge for tuna longline fishing boats, featuring easy operation due to its electromagnetic coupling method, small and lightweight design, and high reliability thanks to its completely sealed construction. Please make use of it for monitoring the descent depth of the longline and the capture position. 【Features】 ○ Easy operation with electromagnetic coupling ○ Compact and lightweight ○ High reliability due to complete sealing ○ Automatically records water entry and exit positions ○ Easy to add additional sensors ○ No batteries required (special power supply method) ○ Comes standard with 3 sensors ○ 40 hours of continuous measurement For more details, please contact us.

• Thermometer

A dedicated reader has been developed for the SBT-500 type depth and temperature gauge, which has received high praise for its ease of operation, allowing for easy graph printing of observation data without the use of a computer. By adopting a sensor electromagnetic coupling method, operation is simple, and it features a completely sealed SBT-500 sensor and a high-quality thermal printer as standard equipment, ensuring high reliability. Please make use of it for monitoring the sinking depth and capture position of longlines. 【Features】 ○ Easy operation → Sensor electromagnetic coupling method ○ High reliability → Completely sealed SBT-500 sensor / high-quality thermal printer as standard equipment ○ Compact and lightweight reader → Compact reader the size of a B5 file (with an adjustable mounting frame) ○ Special power supply method for the sensor unit (no batteries used) ○ Easy data recording → Automatic recording to a memory card simultaneously with data reading ○ Built-in clock battery with a 10-year lifespan ○ Automatic recording of water entry and exit positions through GPS signal input *For more details, please contact us.

• Thermometer

The "SBT-500R" is a compact, integrated underwater depth and temperature gauge designed for tuna longline fishing boats, featuring an electromagnetic coupling system for easy operation, a touchscreen interface for convenient charging, reading, printing, and data management, and a portable integrated trunk case. It is characterized by high reliability due to complete sealing. Please make use of it for monitoring the descent depth of the longline and the capture position. 【Features】 ○ Easy operation → Electromagnetic coupling system ○ Touchscreen interface for easy charging, reading, printing, and data management ○ Portable integrated trunk case ○ High reliability → Completely sealed ○ 40 hours of continuous measurement ○ Sensor section → Special power supply system ○ No batteries used (special power supply system) ○ Standard floppy disk drive included ○ Automatic recording of water entry and exit positions *For more details, please contact us.

• Thermometer

The MAC-6000 is an integrated multi-channel multifunction monitor built into the monitoring panel of a ship's engine room, consolidating equipment for alarm monitoring that was previously distributed. Functions such as temperature monitor display, hydraulic monitor display, upper and lower limit alarm units, average deviation alarm units, annunciator units, and alarm display panel units are all integrated into a single "MAC-6000" unit. 【Features】 ○ Space-saving & high performance ○ Versatile for multiple applications ○ Good maintainability ○ Supports data communication *For more details, please contact us or download the catalog.

• Other security and surveillance systems

The MKG-2011 is a high-performance water temperature recorder with a liquid crystal display, developed by integrating the latest digital technology without compromising the ease of operation and the convenience of traditional paper recording. It is specifically designed as a water temperature recorder, requiring no special basic settings. Utilizing the latest touch panel technology, users can view past records by simply swiping their finger, similar to advancing recording paper. 【Features】 ○ Easy to operate ○ High precision and multifunctional ○ Screen memo function ○ Marker record display function For more details, please contact us or download the catalog.

• Recorders

This is a portable precision resistance thermometer that achieves a tolerance of ±0.1℃ or less by adopting a 4-wire platinum temperature measuring resistance. It has a wide measurement range of -100.00℃ to +199.99℃. It comes standard with a USB cable, making it easy to connect to a PC. Data output is in text format with periodic automatic output, and by using the included EXCEL macro, numerical data can be directly imported into cells. 【Features】 ■ Achieves a tolerance of ±0.1℃ or less ■ Wide measurement range of -100.00℃ to +199.99℃ ■ Standard memory card slot for recording and transporting data ■ Direct import into EXCEL in tabular format via USB port *For details, please request materials or view the PDF data from the download.

• Thermometer

The paperless recorder "Graphic Recorder MKR-3" is a recording device that allows for easy operation and various settings. It features a large LCD display with excellent visibility, designed with consideration for data monitoring in the field. Since it uses a touch panel, complicated operations are unnecessary. Additionally, operations and settings can be easily performed with functionally laid out operation keys. It also comes standard with network functions such as server capabilities, email sending, and file transfer. 【Features】 ■ Easy operation ■ Large display ■ Touch panel ■ High precision and noise resistance ■ Comprehensive network functions For more details, please refer to the catalog or feel free to contact us.

• Recorders

The high-performance digital thermometer "DM-6 Series" is a digital temperature indicator that inputs thermocouples (K) or resistance temperature detectors (pt100Ω 3-wire) and displays the readings with high precision on a green LED. Please choose the most suitable model from the DM-6 series to enhance the performance of various temperature management systems in factory equipment, food, ships, and scientific instruments. We also manufacture high-performance digital temperature indicators in DIN size with pt50Ω input. 【Features】 ■ High reliability ■ High performance ■ High precision LED display ■ Suitable for various industries ■ Enhances the performance of management systems For more details, please refer to the catalog or feel free to contact us.

• Thermometer

The high-performance digital temperature controller 'DM-6 Series' uses thermocouples (K) or resistance temperature detectors (pt100Ω 3-wire type) as sensors and is a digital temperature indicating controller for indication and control. It can be widely used to enhance the performance of various temperature control management systems in factory equipment, food, ships, scientific instruments, and more. Please choose the most suitable model from the DM-6 controller series. There are 3-position (upper and lower limits) and 2-position (ON/OFF) types available. 【Features】 ■ High reliability ■ High performance ■ High precision LED display ■ Suitable for diverse industries ■ Enhances the performance of control management systems For more details, please refer to the catalog or feel free to contact us.

• Thermometer

Portable precision resistance thermometers for marine and industrial use! They can be used in various scenarios, such as calibration work for thermometers on-site and precise measurement of temperature differences between two points. Using the included macro for EXCEL, you can directly plot on a line graph. Data collected outdoors can be recorded and easily transported. 【Features】 ■ Achieves a tolerance of ±0.1℃ or less ■ Wide measurement range from -100.00℃ to +199.99℃ ■ Standard equipped with a memory card slot for data recording and transport ■ Data can be imported directly into EXCEL in tabular format via USB port ■ WS type / BT type can wirelessly transmit data to a computer or PDA (under development) ■ Data output is in text format with automatic periodic output ■ Direct numerical data import into cells using the included macro for EXCEL 【Use Cases】 ■ For calibration work of thermometers on-site ■ For temperature calibration in compliance with ISO, HACCP, and GMP standards ■ For calibration work of thermometers at multiple installation locations *For more details, please contact us or download the PDF data.

• Thermometer