High-precision and reliable pH transmitter.
The output from the pH electrode or Redox electrode is temperature-compensated and converted into an insulated 4-20mA analog signal from the electrode input circuit. The analog output is single-point, allowing for the selection of either pH or Redox output, and scaling is also possible. In addition to the analog output, it features two relay outputs with a delay setting of up to 255 seconds. The large LCD on the front displays temperature on the top line and either pH or Redox values on the bottom line, showing the set parameters during configuration. The DO9765TR and DO9785TR enable high-precision and reliable measurements over an extended period due to high-quality product design and the use of carefully selected components. They are used in combination with separately sold pH electrodes or Redox electrodes and a temperature probe (Pt100Ω/0℃). ▼ DC 4-20mA output pH meter ▼ Relay output (delay setting available)
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basic information
■Composite Electrode Input pH: pH-1.00 to +15.00 (-500 to +500mV) ORP: -1999 to +1999mV Input Impedance: >10¹²Ω Cable Length: <50m, Shielded Cable (approximately 5nF) Accuracy: 0.1% rdg ± 1 digit ± 0.01% pH/°C (Temperature Drift) ■Temperature Input 2-Wire/4-Wire Pt100: -50.0 to +199.9°C Measuring Current: DC 0.5mA Cable Length: <10m, Unshielded Cable; <50m, Shielded Cable (approximately 2nF) Accuracy: 0.2°C ± 0.1% rdg ± 0.01°C/°C ■pH Electrode Temperature Compensation Automatic: Based on Nernst Equation Manual: -50 to +200°C ■Current Output 4.00 to 20.00mA: Proportional to pH or mV value, scalable Accuracy: 0.5% rdg ± 0.02mA Insulation: AC 2500V, 1 minute ■Load Resistance RLmax = (Vdc - 10) / 0.022 RLmax = 636Ω at DC 24V ■Relay Output A and B: C contacts, Contact Capacity 3A/AC 230V ■Power Supply AC 100V ± 10% DC 10 to 35V, 2-Wire 4 to 20mA setting
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Delivery Time
P4
Applications/Examples of results
Water sources, artificial lakes, canals, water purification facilities, industrial equipment, fish farming facilities, greenhouses, research institutes, and other precise measurements of pH and oxidation-reduction potential (ORP).
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Company information
Sakaki Corporation provides products and services from leading European manufacturers such as "Sensirion (formerly Delta Ohm) (formerly Glaesinger)", "Senseair", "Z-LAZER", and "LSI Lastem" as the official importer and distributor in Japan. Additionally, we develop, support, and undertake custom development and mass production of our own brand network IoT products, including routers and gateways that support camera video and solar power cloud services.