Analog non-glass pH sensor
Tophit CPS491
The pH-value of a liquid can be calculated using the potentiometric measurement principle. This video shows what it is about and how this measuring principle works.
ISFET electrode for heavily polluted media in chemical processes, paper or paint production
Tophit CPS491 is the analog specialist for fibrous media or media with a high content of suspended solids such as dispersions, precipitation reactions or emulsions. Its unbreakable shaft ensures a long operating life while the open aperture prevents fouling and guarantees reliable measurement under harsh process conditions.
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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity |
|---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
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Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
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Extended selection Optimize your processes with innovative technologies |
Technical excellence
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Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
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Simplicity
Variable |
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Specs at a glance
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Measurement range
pH 0-14
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Process temperature
max. 110°C
(230°F) -
Process pressure
max. 10 bar
(145 psi)
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Additional components
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Benefits
Unbreakable for highest product safety
Open aperture for application in heavily soiled media
Application possible at low temperatures
Low maintenance thanks to long calibration intervals
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Field of application
Chemical processes
Pulp and paper industry
Contaminated media and suspended solids
- Dispersions
- Precipitation
- Emulsions
With ATEX, FM, and CSA approval for application in hazardous areas.
Documents / Manuals / Software
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Technical Information Tophit CPS491/CPS491D
ISFET Sensor for long-term stable pH measurement in media with high
dirt loads
Analog or digital sensors with Memosens technologyTechnical Information (TI) -
ISFET sensors
Operating Instructions
Memosens sensors and analog sensors for pH measurement
Memosens-Sensoren und analoge Sensoren zur pH-MessungOperating Instruction (BA) -
Analog pH/ORP sensors
Supplement to:
BA01572C
Safety instructions for electrical apparatus in explosion-hazardous
areasEx Safety Instructions (XA) -
Ex Safety Instructions CPS 4XX
Sicherheitshinweise für explosionsgefährdete Bereiche.
Safety instructions for hazardous areas.
Conseils de sécurité pour zones explosibles.Ex Safety Instructions (XA) -
ISFET sensors pH
Supplement to:
BA01609C
Safety instructions for electrical apparatus in explosion-hazardous
areasEx Safety Instructions (XA) -
Manufacturer Declaration
TSE/BSE free
Certificate (ZE) -
SD Tophit
Kurzanleitung für ISFET-Sensoren / Short Instructions for ISFET sensors
Special Documentation (SD) -
pH 測定セレクションガイド
産業プロセスにおける pH 測定
Competence Brochure (CP)08/15Japanese -
CP00010C pH measurement in industrial processes for US market
Selection and engineering guide for your industry and application
Competence Brochure (CP)04/15English -
Measurement and control aspect of pH using inductively coupled with
bidirectional Memosens technology in flue gas desulfurization process
White Paper CP971C pH measurement and control in a power utility is an
integral part of process. The scrubber efficiency is highlydependent on
the pH. Numerous opportunities were revealed for saving time, as well as
the cost and materials in power plants. In afossil fuel power plant,
the
chemical energy stored in coal, oil, natural gas, shale oil, oxygen and
air
is converted into thermal, mechanical and finally into electrical
energy. In
other words, water is heated to steam, which spins a steam turbine. The
steam turbine drives an electrical generator.Competence Brochure (CP)04/11English -
CP01202C pH Sensors:Calibrate, clean, perform a calibration check
or...?
This white paper will address
Knowing when to do a pH sensor calibration versus a calibration
check
How to properly clean a pH sensor
How to perform a pH sensor calibration
A decision tree for step by step guidanceCompetence Brochure (CP)02/12English -
TopHit
Product Code: CPS441-, CPS471-, CPS491-
Declaration Number: EC_00625_01.18EU DeclarationGerman , English , fr -
TopHit, Sensor, PuriSys, OrbiSint, OrbiPore, OrbiPac, Memosens, Liquisys pH/ORP, Liquisys Oxygen, Liquisys Chlorine, Liquiline M, Liquiline, CeraTex, Ceramax, CeraLiquid, CeraGel
Product Code: CPS491-, CPS47D-, CPS471D-, CPS471-, CPS441D-, CPS441-, CPS42D-, CPS42-, CPS41E-, CPS41D-, CPS41-, CPS341D-, CPS31D-, CPS31-, CPS171D-, CPS491D-, CPS64-, CPS71-, CPS71D-, CPS71E-, CPS72-, CPS72D-, CPS76D-, CPS77D-, CPS91-, CPS91D-, CPS91E-, CPS92-, CPS92D-, CPS96D-, CPS97D-, CPS16D-, CCM223-, CCM253-, CM14-, CM42-, CM442-, CM442R-, CM444-, CM444R-, CM448-, CM448R-, CM44P-, CM72-, CM82-, COM223-, COM223F-, COM253-, COM253F-, CPF201-, CPF81-, CPF81D-, CPF82-, CPF82D-, CPM223-, CPM253-, CPS11-, CPS11D-, CPS11E-, CPS12-, CPS12D-, CPS12E-, CPS13-
Region/Country: Russia (TR CU)
Approval Agency: EAC
Approval Number: EAEC RU D-DE.AD07.B.01362/19MiscellaneousRussian -
TopHit, Sensor, PuriSys, OrbiSint, OrbiPore, OrbiPac, Memosens, Liquisys pH/ORP, Liquisys Oxygen, Liquisys Chlorine, Liquiline M, Liquiline, CeraTex, Ceramax, CeraLiquid, CeraGel
Product Code: CPS47D-, CPS471D-, CPS471-, CPS441D-, CPS441-, CPS42D-, CPS42-, CPS41E-, CPS41D-, CPS41-, CPS341D-, CPS31D-, CPS31-, CPS171D-, CPS16D-, CPS491-, CPS491D-, CPS64-, CPS71-, CPS71D-, CPS71E-, CPS72-, CPS72D-, CPS76D-, CPS77D-, CPS91-, CPS91E-, CPS92-, CPS92D-, CPS96D-, CPS97D-, CCM223-, CCM253-, CM14-, CM42-, CM442-, CM442R-, CM444-, CM444R-, CM448-, CM448R-, CM44P-, CM72-, CM82-, COM223-, COM223F-, COM253-, COM253F-, CPF201-, CPF81-, CPF81D-, CPF82-, CPF82D-, CPM223-, CPM253-, CPS11-, CPS11D-, CPS11E-, CPS12-, CPS12D-, CPS12E-, CPS13-
Region/Country: Russia (TR CU)
Approval Agency: EAC
Approval Number: EAEC D-DE.AD07.B.01363/19MiscellaneousRussian -
TopHit, Sensor, OxyMax W, OrbiTex, OrbiSint, OrbiPore, Memosens, Liquiline M, InduMax P, InduMax H, ConduMax W, ConduMax H, CeraLiquid, CeraGel
Product Code: CPS42-, CPS43-, CPS441-, CPS441D-, CPS471-, CPS471D-, CPS491-, CPS64-, CPS72-, CPS72D-, CPS91-, CPS91D-, CPS92-, CPS92D-, CPS96D-, CPS41-, CPS21-, CPS16D-, CPS13-, CPS12D-, CPS12-, CPS11D-, CPS11-, COS51D-, CM42-, CLS54-, CLS50D-, CLS50-, CLS16D-, CLS15D-
Region/Country: Russia (TR CU)
Approval Agency: EAC
Protection: Ex ia IIC T6 Ga, Ex ia IIC T6...T3 Ga, Ex ia IIC T6...T4 Ga, Ex ib [ia Ga] IIC T6...T4 GaExplosion ProtectionRussian -
TopHit, OxyMax W, OxyMax H, OrbiSint, OrbiPore, OrbiPac, Memosens, Liquiline, InduMax P, ConduMax W, ConduMax H, Chloromax, CeraLiquid, CeraGel
Product Code: COS81D-, CPF81D-, CPF82D-, CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS41D-, CPS42D-, CPS441D-, CPS471-, CPS471D-, CPS491-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, COS51D-, CCS120D-, CCS142D-, CCS50D-, CCS51D-, CCS55D-, CCS58D-, CLS15D-, CLS16D-, CLS21D-, CLS50D-, CLS82D-, CM442-, CM442R-, CM444-, CM444R-, CM448-, CM448R-, COS21D-, COS22D-
Region/Country: Canada, USA
Approval Agency: CSAExplosion ProtectionEnglish -
TopHit, Sensor, OxyMax W, OxyMax H, OrbiTex, OrbiSint, OrbiPore, Memosens, Liquiline M, InduMax P, InduMax H, ConduMax W, ConduMax H, CeraLiquid, CeraGel
Product Code: CPS42-, CPS42D-, CPS43-, CPS441-, CPS441D-, CPS471-, CPS471D-, CPS491-, CPS491D-, CPS64-, CPS71-, CPS71D-, CPS72-, CPS72D-, CPS76D-, CPS91-, CPS91D-, CPS92D-, CPS96D-, CPS41D-, CPS41-, CPS21-, CPS16D-, CPS13-, CPS12D-, CPS12-, CPS11D-, CPS11-, COS81D-, COS51D-, COS22D-, CM42-, CLS82D-, CLS54-, CLS50D-, CLS50-, CLS21D-, CLS16D-, CLS15D-
Region/Country: Russia (TR CU)
Approval Agency: EAC
Protection: Ex ia IIC T3 Ga, Ex ia IIC T4 Ga, Ex ia IIC T6 Ga, Ex ib [ia Ga] IIC T4 Gb, Ex ib [ia Ga] IIC T6 GbExplosion ProtectionRussian -
InduMax P, Liquiline M, Memosens
Product Code: CPS41-, CPS41D-, CPS42-, CPS42D-, CPS441-, CPS441D-, CPS471-, CPS471D-, CPS491-, CPS491D-, CPS64-, CPS71-, CPS71D-, CPS72-, CPS72D-, CPS76D-, CPS91-, CPS91D-, CPS92-, CPS92D-, CPS96D-, CTS1-, CYK10-, CYP01D-, CYP02D-, OPS171D-, CLS12-, CLS13-, CLS15-, CLS15D-, CLS16-, CLS16D-, CLS21-, CLS21D-, CLS50-, CLS50D-, CLS82D-, CM42-, COS21D-, CPS171D-, CPS16D-, CPS13-, CPS12D-, CPS12-, CPS11D-, CPS11-, CPF82D-, CPF82-, CPF81D-, CPF81-, COS51D-, COS22D-
Region/Country: USA
Approval Agency: FMExplosion ProtectionEnglish -
TopHit, Sensor, OrbiSint, OrbiPore, OrbiPac, Memocheck, InduMax P, InduMax H, ConduMax W, ConduMax H, CeraLiquid, CeraGel
Product Code: CYP03D-, CTS1-, CPS92-, CPS91-, CPS72-, CPS71-, CPS491-, CPS471-, CPS441-, CPS42-, CPS41-, CPS13-, CPS12-, CPS11-, CPF82-, CPF81-, CLS54-, CLS50-, CLS21-, CLS16-, CLS15-, CLS13-, CLS12-
Region/Country: Canada
Approval Agency: CSAExplosion ProtectionEnglish
Accessories / Spare parts
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Order code
No spare parts available.
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