大田計器製作所 List of Products and Services

The "OW-34-BP" is a tipping bucket rain gauge composed of a body and a measuring section. The measuring section is housed within the body, which has a water intake with a diameter of 200mm. The tipping bucket tips over with the weight of 0.5 mm (standard) of precipitation, and a magnet attached to it switches the reed switch ON each time it tips. This converts the precipitation into contact signals for rain measurement. 【Features】 ■ The constriction in the center of the body makes it less susceptible to wind effects even in strong winds. ■ Can be installed in environments prone to affecting metal parts, such as volcanic areas, coastal areas, and various plants. ■ Designed to minimize issues caused by corrosion and other problems. *For more details, please download the PDF or feel free to contact us.

• Other measuring instruments

The "34-HT-BP" is a tipping bucket rain gauge designed for cold regions, equipped with a built-in heater to prevent freezing. The tipping bucket tips over with the weight of 0.5 mm (standard) of precipitation, and a magnet attached to it switches the reed switch ON each time it tips. This converts the precipitation into a non-voltage contact signal for rain measurement. 【Features】 - Built-in heater at the top of the body to prevent freezing of the sensing part - Suitable for high-temperature and high-humidity environments - Can be installed in environments prone to affecting metal parts, such as volcanic areas, coastal areas, and various plants - Designed to minimize issues caused by corrosion and other problems *For more details, please download the PDF or feel free to contact us.

• Other measuring instruments

"Vol. 29-1" is the comprehensive catalog of Ohta Keiki Seisakusho Co., Ltd., which manufactures, sells, repairs, and calibrates meteorological observation instruments. It features various products, including the "Comprehensive Meteorological Observation Device," which automatically performs various data processing tasks such as data collection, analysis, display, printing, and monitoring using a PC, as well as "Anemometers" and "Rain Gauges." [Contents] ■ Comprehensive Meteorological Observation Device ■ Anemometer ■ Rain Gauge ■ Temperature and Humidity Meter / Barometer / Pyranometer / Stevenson Screen *For more details, please download the PDF or feel free to contact us.

• Other measuring instruments
• Anemometer
• Other analytical equipment

The "OW-RFI-01" is a rain intensity sensor that integrates a rain intensity calculation unit into a tipping bucket rain gauge. You can set any desired rain intensity value as an alarm threshold. By utilizing the alarm contact output, you can control alarms and signal lights. 【Features】 ■ Adopts a tipping bucket rain gauge, eliminating the need for regular kerosene replacement. ■ Holds the 6-minute accumulated value for the next 6-minute sampling period, outputting a stepped analog signal of 0-100mm/h at 4-20mA. ■ Alarm settings can be configured via the internal setting switch. ■ Can also be used as a tipping bucket rain gauge with pulse output (optional). ■ The "OW-RFI-05" is also available, with a measurement range of 0-500mm/h and a minimum unit of 5mm/h. *For more details, please download the PDF or feel free to contact us.

• Other measuring instruments
• Other analytical equipment

The "30-420-DG24" is a digital wind direction and speed meter that combines the wind direction and speed sensor "30-T-420" with the digital wind direction and speed indicator "DG-24." The signal output from the wind direction and speed sensor is a 4-20mA current output, allowing for noise resistance and long-distance signal transmission. The wind direction and speed signals are converted and output as 4-20mA signals. 【Features】 ■ Magnetic pulses are used for wind speed detection, and a photo encoder is used for wind direction detection. ■ Excellent resistance to aging and surrounding temperature effects. ■ The sensor installation method is a pole insertion type, making it easy to install. ■ Standard equipped with a data logger function using an SD card. *For more details, please download the PDF or feel free to contact us.

• Anemometer

The "OWL-3S" is a wind speed meter with an alarm, consisting of a cup-type pulse transmitter and a digital LCD indicator. The transmitter converts the rotation of the cups into a pulse signal using a light sensor, which is then superimposed on the power supply and sent to the indicator. The indicator receives this signal and displays the instantaneous, average, and maximum instantaneous wind speed over 10 minutes. 【Features】 ■ Capable of measuring wind speeds from light winds (0.5 m/s) to strong winds (60 m/s) ■ Significantly improved noise resistance due to digitalization ■ Compatible with both AC and DC power supplies (DC power can be used with 12/24V batteries) ■ Simultaneously displays instantaneous, average, and maximum instantaneous wind speed over 10 minutes ■ Average wind speed can be set to change between 3 to 600 seconds *For more details, please download the PDF or feel free to contact us.

• Anemometer

The "OZ-260D-B II" is a digital handheld anemometer that can measure instantaneous wind speed, average wind speed, maximum instantaneous wind speed, and wind direction. The indicator is stored in a waterproof case, making it suitable for all weather conditions. The main unit is compactly housed in an aluminum case to prevent damage during transport. It can be easily set up with the included tripod. 【Features】 ■ Capable of measuring instantaneous wind speed, average wind speed, maximum instantaneous wind speed, and wind direction ■ The display switches with each press of the "MODE" button on the indicator ■ The reset time for average wind speed and maximum instantaneous wind speed can be set from 1 to 600 seconds (10 minutes) in 1-second increments ■ Once set, it can retain the settings even when the power is turned off *For more details, please download the PDF or feel free to contact us.

• Anemometer

The definitive version for monitoring and observing guerrilla downpours! It’s a new type of rainfall intensity sensor that can measure the rainfall amount over one hour in just six minutes. Guerrilla downpours? They are heavy rains that occur frequently nowadays, characterized by concentrated rainfall over a short period. Early warning notifications enhance safety. 【Features】 - All functions built into the sensor! All-in-one - Maintenance-free - Excellent cost performance, capable of monitoring up to 500mm/h 【You can use it in the following places】 - River construction - Sewer construction - Sewage pipes - Flood prevention measures - Pump distribution stations - Underground machinery rooms - Subways - Underground shopping areas - Urban disaster management in general *For more details, please download the catalog or feel free to contact us.

• others