Factory wholesale Resistivity Sensor 4-20ma - Online PH ORP Sensor PH-100 – JIRS

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Pls unpack and check that the sensor has been supplied undamaged and that it is the correct option as ordered. If you have any problems please contact your supplier.

Introduction
PH/ORP composite electrode is made from low impedance sensitive glass membrane, can be applied to measure PH value in various conditions, has quick response, good thermal stability characteristics. With good reproducibility, not easy to hydrolysis, eliminate the alkali error basically, appear a linear power value in 0-14 measuring range. The reference system composed of gel electrolyte salt bridge and Ag/Agcl has the stable half cell potential and good contamination resistance character. The circular PTFE diaphragm is not easy to block, can be used for long-term online measuring.

Main technique specification

Name

Function

Measuring Range

0-14ph, -1900~+1900mV

Accuracy

pH: ±0.01 pH, ORP± 1Mv

Measured temperature

0-60℃, normal temp.

60℃-100℃, high temp.

Response time

5sec

Driftance

≦0.02PH/24hours

Sensitive membrane impedance

≦200*106Ω

Slop

≧98 %

Electrode equipotential point

7±0.5PH

Outline connect dimension

NPT 3/4” thread

Body main material

PP – normal temp.,

Glass- high temp.

Wetted material

PP material cover, impedance sensitive glass membrane, circular PTFE diaphragm, and gel electrolyte salt bridge.

Flow rate

Not more than 3m/s

Working pressure

0-0.4mPa

Joint way

BNC connector or Pin connector

ATC

PT 100, PT1000, NTC 10K

Calibration

4.00, 6.86, 9.18 powder

Cable length

5meter or as per request.

Outline dimensions

PH-ORP SENSORS INSTRUCTION MANUAL4

PH-ORP SENSORS INSTRUCTION MANUAL05

Installation method and Attention-matter

PH-ORP SENSORS INSTRUCTION MANUAL06

(Several common method of installation)

In order to make sure the probe measure the real value on the pipe, bubbles should be avoided, otherwise the value will be not accurate, please install according to the following chart: 

PH-ORP SENSORS INSTRUCTION MANUAL7

Note
1. The probe bypass pipe of the main pipe, valve should be installed in front of it to control the water flow speed, flow should be relatively slow, generally there are steady water flow out of the outlet port is ok. The probe should be installed vertically and should be insert into the active water flow, outlet port should be higher than inlet port which could make sure the probe was in the water solution absolutely.
2. The probe should be calibrated before installation.
3. The measure signal is weak electric signal, its cable should be contributed separately, it is not allowed to contributed together in same cable or terminal with other power line, control line etc, which it to avoid interrupt or broke the measure unit.
4.If the measure cable should be length, please contact with the supplier or indicated before place order (generally not longer than 10m).

Operation and maintenance
1). Before measuring, the PH electrode must calibrate in the known PH value standard buffer solution, in order to improve the accuracy of measurement, the buffer solution PH value must be reliable and close to the measured PH value, the closer the better, generally not more than three PH value.
2). The sensitive glass ball bubble of electrode front-end can not contact with hard objects, any breakage and brush hair will disable electrode.
3). Electrode socket must maintain clean and dry, if there is any defile, need to wipe clean and dry by medical cotton and anhydrous alcohol. Absolutely prevent output two end short circuit, otherwise will lead to a measurement misalignment or failure.
4). Before measuring, pls pay attention to getting rid of bubbles in the glass ball, otherwise will cause measurement error. During measuring, electrode in the test solution should be still placed after agitation, to speed up the response.
5). Measured before and after measurement, need to clean the electrode by using deionized water, to ensure the accuracy of measurement. After measuring the thick solution, the electrode need to be washed solvent by deionized water.
6). After long-term use,the electrode will generate passivation, the phenomenon is sensitive gradient will be lower, slow response, inaccuracy reading. In this situation, the electrode bottom ball bubble need to immerse into the 0.1M solution for 24 hours, (0.1M dilute hydrochloric acid preparation: 9ml hydrochloric acid is diluted to 1000ml with distilled water), and then immerse the electrode bottom ball bubble into the 3Mkcl solution a few hours, make it restore performance.
7). Glass ball bubble pollution or liquid junction congestion would also cause the electrode passivation, in this situation, need to wash with the appropriate cleaning solution according to the nature of pullutants (for reference).

Pullutants

Detergent

Inorganic metal oxides

Lower 1M dilute hydrochloric acid

Organic oil content

Diluted detergent ( weak alkaline)

Resin substance

Dilute alcohol, acetone, ethyl ether

Protein blood deposit

Acidic enzyme solution (such as pepsin, etc)

Pigment category substance

Diluted bleach solution, hydrogen peroxide

8). The electrode use cycle is one year or so, the aging electrode should be replaced timely.

Joint wire
Transparent wire -INPUT
Black wire-REF
White wire-TEMP (if have temperature compensation)
Green wire-TEMP (if have temperature compensation)

JiShen Water treatment Co., Ltd.
Add: No.18, Xingong Road, High-Technology Area, Shijiazhuang,China
Tel: 0086-(0)311-8994 7497 Fax: (0)311-8886 2036
E-mail: info@watequipment.com
Website: www.watequipment.com


Product detail pictures:

Factory wholesale Resistivity Sensor 4-20ma - Online PH ORP Sensor PH-100 – JIRS detail pictures

Factory wholesale Resistivity Sensor 4-20ma - Online PH ORP Sensor PH-100 – JIRS detail pictures

Factory wholesale Resistivity Sensor 4-20ma - Online PH ORP Sensor PH-100 – JIRS detail pictures

Factory wholesale Resistivity Sensor 4-20ma - Online PH ORP Sensor PH-100 – JIRS detail pictures


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