Industrial Online water quality analysis pH ORP controller water treatment instrument pH Meter Feature: LCD display Intelligent menu operation Multiple automatic calibration Differential signal measurement mode, stable and reliable Manual and automatic temperature compensation Three relay control switches 420mA & RS485,Multiple output modes Multi parameter display simultaneously shows - pH/ ORP, Temp, current,etc. High & low alarm and hysteresis control. The matching installation accessories make the installation of the controller in complex working conditions more stable and reliable. Password protection to prevent misoperation by non-staff Technical parameters: Measurement range:pH:-2~16.00pH;ORP:-2000~+2000mV; Temp:-10~150.0&ordm;C; Resolution: pH:0.001pH; ORP:1mV; Temp:0.1&ordm;C; Basic error:pH:&plusmn;0.01pH; ORP:&plusmn;1mV; Temp:&plusmn;0.3&ordm;C; Stability: pH:&le;0.01pH/24h; ORP: &le;1mV/24h; Two current outputs: 0/4~20mA(load resistance<750&Omega;); 20~4mA(load resistance<750&Omega;); Communication output: : RS485 MODBUS RTU; Three groups of relay control contacts: 5A 250VAC,5A 30VDC; Power supply (optional): 85~265VAC&plusmn;10%,50&plusmn;1Hz, Power &le;3W;9~36VDC, Power :&le;3W; Overall dimension:98&times;98&times;130mm; Installation mode: panel, wall hanging, pipe type; Panel opening size: 93&times;93MM; Waterproof grade: IP65; Instrument weight: 0.8kg; Instrument working environment: Environment temperature :-10~60&ordm;C; Relative humidity:<=90%; In addition to the earth's magnetic field around no strong magnetic interference Applications: Industrial online pH/ORP meter is a microprocessor -based water quality online monitoring control instrument. The instrument equipped with different types of pH or ORP electrode. It is widely used in power plants, petrochemical industry, metallurgical electronics, mining industry, paper industry, biological fermentation engineering, medicine, food and beverage, water treatment, aquaculture, modern agricultural planting and other industries. Continuously monitor and control pH value, ORP value and temperature of aqueous solution. Package: Production: Company profile: Suzhou Holi Smart Technology Co., Ltd. is located in beautiful suzhou city, that is a professional supplier which provide development, manufacturing, sales of various water quality analysis instruments. Our company specialize in the production water quality analysis instruments and various sensors. Main production: 1. Industrial Online Meters/controllers and various sensors/electrodes. 2. Environmental protection Online Meters/controllers and various sensors/electrodes. 3. Flow meters and pressure gauges 4. Laboratory instruments and electrodes 5. Business water quality tester pen (PH/TDS/EC/ORP/TEMP......) 6. Soil meter/ Soil detector/ Fertilizer nutrient tester Our products widely used in power plant, petrochemical, mining and metallurgy, environmental protection of water treatment, light industry electronics, water plant and drinking water distribution network, food and beverage, hospital, aquaculture, new agricultural planting and biological fermentation process and other industries,ect. helping customer to provide good water quality monitoring solutions. Focus on water quality monitoring and analysis, To be your ideal water quality monitoring supplier.