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Company ProfileShandong Dongrun Instrument Science and Technology Co., Ltd.
By certification [File Integrity]
Contact：Mr. Bobby Jiang(Mr.)
PHS-8B intelligent industrial PH transmitter is the intelligent industrial online analytical instrument. It can be connected to the high-impedance analog signal pH ORP electrode of many companies at home and abroad. It can be used to detect the pH, ORP value of the solution in chemical, petroleum, rubber, paper, tobacco, alcohol, sugar, food, mining, smelting, iron and steel, power generation, pharmaceuticals, water treatment and other industries.
1 16 bit high accuracy AD and low power microprocessor technology.
2 Multi-level password protection, reliable and safe measurement data.
3 Automatically identify and calibrate the PH standard solution. Automatic temperature compensation
4 High-resolution graphic LCD which can display the PH (mV) value, temperature, date, electrode slope, zero position, output current, etc. simultaneously.
5 Two analog (pH/mV and temperature) isolated output and digital signal output (RS485/ standard MODBUS protocol) can be chosen.
6 4-way alarm relay and 1-way cleaning control relay output
7 Isolated power supply is adopted to measure and output. Strong anti-interference ability.
8 Intelligent paperless record and power-off protection can record and inquire the operation of a month~a year and set data.
Measurement range pH 0~14
Instrument stability ±0.05pH(±2mV)/48 hour
Measurement error ±0.05pH(±2mV)
Instrument resolution ±0.01pH(1mV)
Input impedance >3×1012Ω
Output signal 4~20mA.DC or RS485(MODBUS)
Input signal high impedance millivolt signal
Output load resistance 4~20mA.DC, 0~500Ω
Alarm setting range 0~14pH( can be set)
Alarm setting hysteresis width full scale hysteresis setting
Alarm output contact capacity 250VDC, 3A
Temperature measurement range -10~150°C
Operating ambient temperature -10~55°C
Power supply 220V. AC ±10%, 50Hz, 15W
Temperature compensating range -10~100°C
Temperature compensating error <0.005PH/°C
Protection grade IP65
Yantai dongrun Instrument Co., Ltd. founded in 1998. It specializes in manufacturing online water quality analyzer, level meters, pressure gauge, flow meter, special temperature gauge and laboratory water analyzer.. Our company cooperates with Chinese Academy of Sciences and builds up a water analysis laboratory, mainly producing TOC analyzer, ammonia analyzer, fluorescence oxygen analyzer, etc. We have passed the ISO9001 certification. Our professional R & D team can provide technical supports to satisfy customer demand and our unique technologies can meet different working conditions. We are the important supplier of Yantai Wanhua Group,Pepsi,Sinopec,Jerel etc.