There are 2-wire (DC 24V power supply) and 4-wire (AC-free power supply) types, and they transmit an output of DC 4-20mA!
The "HDM-137A type (2-wire) / 138A type (4-wire)" is a field-mounted ORP meter converter (transmitter) with a simple function and easy operation, housed in a compact and robust aluminum case. In the measurement range of -2000 to 2000 mV, the transmission output of DC 4 to 20 mA can be set arbitrarily with a width of 400 mV or more. With the ORP standard solution check, the quality of the electrode characteristics is automatically judged. It indicates "GOOD," "LOW," or "HIGH" relative to the reference potential, along with displaying the potential difference. 【Features】 ■ Change of ORP transmission output range ■ Automatic judgment of electrode characteristics ■ Temperature measurement display ■ ORP measurement value shift ■ Easy operation with a waterproof switch on the bottom *For more details, please download the PDF or feel free to contact us.
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【Other Features】 ■ Change of response speed ■ Automatic return to measurement mode *For more details, please download the PDF or feel free to contact us.
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Our company is an SIer trading company that handles everything from the sale of scientific and industrial equipment and medical devices to system development, maintenance, and support. Our strength lies not only in dealing with a wide range of equipment but also in possessing advanced technical expertise, a wealth of products, and know-how regarding those devices. We will continue to respond to our customers' needs and provide suitable solutions by understanding the potential issues they may have. Coverage area: Hokuriku (Fukui Prefecture, Ishikawa Prefecture, Toyama Prefecture), Koshin (Nagano Prefecture, Yamanashi Prefecture), and neighboring prefectures.