PH-8006G series industrial pH meter

Overview

industryPH-8006GThe plan was developed by our company8000One of the intelligent online chemical analyzers in the series, it has strong environmental adaptability, clear display, easy operation, and excellent testing performance, making it highly cost-effective and capable of accurately measuring solutionspHValue and temperature. Can be widely used in solutions such as thermal power, chemical fertilizers, metallurgy, environmental protection, pharmaceuticals, biochemistry, food, and tap waterpHContinuous monitoring of values.

Basic functions

High intelligence:industrypHHigh precision is adopted for the calculationADConversion and microcontroller microprocessing technology, capable of completingpHMultiple functions including value measurement, temperature measurement, automatic temperature compensation, and instrument self-test.

High reliability:Single board structure with only one circuit board,Without complex function switches, adjustment knobs, and potentiometers.

Strong anti-interference ability:Adopting new devices with impedance up to1012Ω; The current output adopts photoelectric coupling isolation technology, which has strong anti-interference ability and achieves long-distance transmission. Has good electromagnetic compatibility.

25℃ Conversion:Pure water and ammonia added ultrapure water were tested25Convert the reference temperature to ℃ and achieve display25At ℃pHValue, particularly suitable for measuring various water qualities in power plants.

Simultaneous display of multiple parameters:Display simultaneously on one screenpHValue, temperature. Adopting high brightnessLEDdisplay module,The main display is in red10×10mmSpecification displaypHvalue,Conspicuous and with a long visible distance.

RS485Communication interface:It can be conveniently connected to a computer for monitoring and communication.

Industrial controlled watchdog:Ensure that the instrument panel does not crash.

Main Features

◆ Measurement range:pH：0～14.00pH, Temperature:0～100℃ (automatic temperature compensation);

◆ Error: ±0.05pH，±0.8℃；

◆ 4～20mACurrent output, intelligent Chinese menu style operation;

◆ LCD display screen, upper and lower limit alarm settings, and two sets of switch output can be controlled;

◆ Overall dimensions:96×96×126mmInstallation hole size:91×91mm；

◆ Power Supply:220VAC/50Hz; or24VDC；

◆ Used for continuous monitoring of various water quality, widely used in environmental water treatment, etc

Selection of electrodes

The accuracy and stability of electrodes are the determining factorspHOne of the key factors determining the quality of a watch. Especially for low conductivity water quality, higher requirements are placed on electrodes. If measured with ordinary electrodes, the stability is poor and the service life is short, which cannot meet the requirements.

Electrode Installation Diagram

Structure and Size

◆ industrypHThere are various models and specifications of electrodes, please specify the usage scenario when placing an order. If the user specifies an electrode, its sheath and measuring cell can be customized.

◆ Triple composite electrode: The measuring electrode, reference electrode, and temperature compensation electrode are combined into one for easy installation, disassembly, and cleaning.

◆ Two composite electrodes: the measuring electrode and the reference electrode are combined into one.

◆ Zero potential (equipotential point):7.00pH.

◆ Diaphragm form: made of porous fibers, with good isolation and pollution prevention. Double liquid junction structure, with low resistance performance, suitable for most industrial applications.

◆ Sensitive glass film: acidity sensitive part, with four options to choose from, suitable for different occasions.

◆ Length:150mm，107mmor77mm; Outer diameter: φ28±0.2Pressure: Can withstand up to six atmospheres.

◆ Pure water and ultrapure water electrodes

For pure waterpHThe recommended electrode models for measurement are:T225TheT335It uses solid electrolyte inside, which is very convenient to use; Fast response speed, usually stable in just over ten seconds; Long service life; Unique diaphragm structure, strong anti pollution ability; Can be used in situations with extremely low electrical conductivity.

T225For the two composite electrodes, the temperature compensation electrode needs to be separately matched.T335The three composite electrodes are easy to use and maintain.

◆ Environmentally friendly wastewater, used in general industrial processespHelectrode

For environmentally friendly wastewater and general industrial processespHThe recommended electrode models are as follows:T224TheT334Adopting imported circular large cross-sectional areaTeflonDiaphragm ensures stable liquid contact potential and low resistance characteristics of the electrode, preventing blockage and pollution. Capable of measuring under harsh conditions, suitable for environmental protection, wastewater, colloids, and general industrial processespHElectrode.

T224For the two composite electrodes, the temperature compensation electrode needs to be separately matched.T334The three composite electrodes are easy to use and maintain.

◆ High temperature electrode

For temperatures above80.0℃，pHThe recommended electrode model isT337Adopting imported circular large cross-sectional areaTeflonDiaphragm ensures stable liquid contact potential and low resistance characteristics of the electrode, preventing blockage and pollution,Can measure under high temperature conditions.

◆ Used in special environmentspHelectrode

In some special usage scenarios, electrodes can be customized according to the user's specific usage environment and requirements! For example: for organic solvents316LStainless steel electrode; haveHFUse antimony electrodes or polymer membrane electrodes.

Attention: If domestic electrodes cannot meet the customer's needs, our instrument can be used in conjunction with imported electrodes. Based on our years of practical experience, in general, domestic electrodes can achieve the same effect as imported electrodes.

Maintenance of electrodes

pHThe quality of the electrode usage largely depends on its maintenance. The electrodes should be cleaned regularly to ensure that they are not contaminated or blocked; Calibrate the electrodes periodically; During the water outage, it is necessary to ensure that the electrodes are immersed in the tested liquid, otherwise their lifespan will be shortened; The cable connectors must be kept clean and free from moisture or water ingress. It is indeed a problem with the instrument, please do not repair it yourself, please contact us.

Activation:If the electrode is stored in a dry environment, it must be soaked before use24Activate it for hours, otherwise calibration and measurement will result in significant errors.

clean:When the electrode is found to be contaminated or blocked, affecting the measurement accuracy, a soft brush can be used to gently brush the electrode head, and then clean it with clean water. The cleaning methods for various types of pollution are as follows: oil or oily substances can be cleaned with surfactants; Can be used for calcium precipitates or metal hydroxides10%Dilute hydrochloric acid cleaning; For sulfide precipitation (such as during wastewater treatment), it can be used10%Wash with a mixture of dilute hydrochloric acid and saturated thiourea; Available for protein attachments10%Wash with a mixture of dilute hydrochloric acid and pepsin.

Regeneration:When the electrode response is found to be slow, almost sluggish, apply10%ofHNO3andNH4F（50g/l）Soak the mixture and regenerate it. Usually within ten seconds.

When leaving the factory, the electrode has a protective cap that contains aKClSponge of solution to maintain the moisture of sensitive membrane. When the electrode is not in use, it should be rinsed clean with water and plugged back in1mol KClInside the protective cap of the solution, or soak the electrode inKClIn the solution.