Product Details

4~20mA/RS485 cheap aquarium ph tds meter with relays alarm

Company Introduction

Yantai dongrun Instrument Co., Ltd. was founded in 1998, specializes in manufacturing online water quality analysis equipment, material level meters, pressure gauges, flow meters, special temperature gauges and laboratory analysis equipment. Our company cooperate with the Chinese Academy of Sciences to build a water analysis laboratory, and the main products are TOC analyzer, ammonia analyzer, fluorescence oxygen analyzer, etc. We have passed the ISO9001 certification and has a professional R & D team, providing technical support to meet customer demand, particularly in the anti-corrosion, our company has a unique technology to meet different conditions of corrosion requiremes

Product Introduction

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.

Feature

16 bit high accuracy AD and low power microprocessor technology

Multi-level password protection, reliable and safe measurement data

Automatically identify and calibrate the PH standard solution. Automatic temperature compensation

High-resolution graphic LCD which can display the PH (mV) value, temperature, date, electrode slope, zero position, output current, etc. simultaneously.

Two analog (pH/mV and temperature) isolated output and digital signal output (RS485/ standard MODBUS protocol) can be chosen.

4-way alarm relay and 1-way cleaning control relay output

Isolated power supply is adopted to measure and output. Strong anti-interference ability.

Intelligent paperless record and power-off protection can record and inquire the operation of a month~a year and set data.

Technical Parameter

Measurement range	pH 0~14 ORP-1999~+1999mV
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
Operating ambient temperature	-10~55
Power supply	220V. AC ±10%, 50Hz, 15W
Temperature compensating range	-10~100C
Temperature compensating error	<0.005PH/C
Protection grade	IP65
Dimension	210(width)×185(height)×105(thickness)

Company and trade show

Certificate

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