
Specs at a glance
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Measurement range
-1500 mV - +1500 mV
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Process temperature
-15°C - 130°C
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Process pressure
max. 8bar
Field of application
Ceraliquid CPS42D is the digital high performer for harsh chemical applications, media with low conductivity or a considerable content of organic solvents. The sensor is designed for fast response guaranteeing high process safety even in applications with fast-changing media. Ceraliquid CPS42D is not the latest Memosens generation. To get information on the new Memosens CPS42E sensor with extended functionality, click here.
Media with very low conductivities or a considerable amount of organic solvents or alcohols and fast changing media:
Chemical industry
Power plants, e.g. boiler feed water
Life sciences, e.g. water for injection
With ATEX, FM and CSA approval for use in hazardous areas.
Benefits
Resistant to poisoning due to constant refilling of KCl bridge electrolyte and separate reference lead
Applicable at very low conductivities (= 5 µS/cm) thanks to liquid KCl electrolyte
Suitable for cleaning in place (CIP) and sterilization in place (SIP)
Perfectly suited for quickly changing media: Combination of liquid KCl electrolyte and ceramic diaphragm enables fast response time
Maximum process safety through non-contact inductive signal transmission
Enables predictive maintenance due to storage of sensor and process-specific data
Reduced operating costs due to minimized process downtime and extended sensor lifetime
Videos
Extended selection
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High-end products
- Highly functional and convenient
Technical excellence
Simplicity

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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 |
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Fundamental selection Meet your basic measurement needs |
Technical excellence
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Simplicity
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Lean selection Handle your core processes easily |
Technical excellence
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Simplicity
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Extended selection Optimize your processes with innovative technologies |
Technical excellence
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Simplicity
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Xpert selection Master your most challenging applications |
Technical excellence
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Simplicity
Variable |
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Technical Information (TI)
Technical Information Ceraliquid CPS42 / CPS42D / CPS43
Redox electrodes,analog and digital with Memosens technology and reference electrode, each with ceramic diaphragm and liquid KCl e lectrolyte
EN 01/05/2005Language:
English
Version:
01/05/2005
File size:
753.1 KB
File name:
TI373CEN.pdf
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Operating Instruction (BA)
pH/ORP sensors and reference half cells
Sensors with Memosens technology and analog sensors
EN 04/05/202031/12/201730/11/2015Language:
English
Version:
04/05/2020
File size:
1.1 MB
File name:
BA01572CEN_0320.pdf
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Ex Safety Instruction (XA)
Memosens pH/ORP Sicherheitshinweise für elektrische Betriebsmittel im explosionsgefährdeten Bereich Safetyinstructions for electrical apparatus for explosion-hazardous areas Conseils de sécurité pour matériels électriques destinés aux zones explosibles Safety Instructions
Safety instructions for electrical apparatus for explosion-hazardous areas
EN 22/02/201604/03/201514/01/201321/10/201001/12/2006Language:
English
Version:
22/02/2016
File size:
4.3 MB
File name:
XA00376CA3_1616.pdf
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Ex Safety Instruction (XA)
Memosens pH/ORP Sicherheitshinweise für elektrische Betriebsmittel im explosionsgefährdeten Bereich Safetyinstructions for electrical apparatus for explosion-hazardous areas Conseils de sécurité pour matériels électriques destinés aux zones explosibles Safety Instructions
Safety instructions for electrical apparatus for explosion-hazardous areas
EN 11/11/201631/12/201101/04/2009Language:
English
Version:
11/11/2016
File size:
3.7 MB
File name:
XA00079CA3_1416.pdf
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Ex Safety Instruction (XA)
Memosens ph/ORP sensors
pH/ORP measurement Supplement to BA01572C, BA01109C Safety instructions for electrical apparatus in explosion-hazardous areas UKEx II 1 G Ex ia IIC T3/T4/T6 Ga UK Ex II 1 G Ex ia IIC T4/T6 Ga
Language:
English
Version:
08/12/2021
File size:
435.2 KB
File name:
XA02786CEN_0121-00.pdf
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Ex Safety Instruction (XA)
Memosens pH/ORP sensors
pH and ORP measurement Supplement to: BA01572C, BA01109C Safety instructions for electrical equipment in explosion-hazardous areas EAC Ex 0Ex ia IIC T3/T4/T6 Ga X EAC Ex 0Ex iaIIC T4/T6 Ga X
EN 01/03/202218/02/202108/03/2016Language:
English
Version:
01/03/2022
File size:
508.1 KB
File name:
XA01437CEN_0322-00.pdf
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Special Documentation (SD)
Memoclip
Äußere Kennzeichnung von digitalen Sensoren und Kabeln mit Memosens-Technologie
EN 01/03/2007Language:
English
Version:
01/03/2007
File size:
284.4 KB
File name:
SD124Ca2.pdf
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Special Documentation (SD)
Kurzanleitung pH-/Redox-Sensoren - Short Instructions pH/ORP sensors
pH-/Redox-Sensoren - pH/ORP sensors
EN 01/04/200701/09/1999Language:
English
Version:
01/04/2007
File size:
361.7 KB
File name:
SD050Ca2.pdf
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Manufacturer Declaration
Product family: CeraGel, CeraLiquid, OrbiPore, OrbiSint
Product root: CPS12D-, CPS42D-, CPS72D-, CPS92D- Declaration number: HE_01072_01.18 Additional information: Siemens SN29500
EN 28/11/2018Language:
English
Version:
28/11/2018
File size:
430.9 KB
File name:
HE_01072_01.18.pdf
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EU Declaration
Product family: CeraGel, CeraLiquid, Memosens, OrbiPore, OrbiSint
Product root: CPS11D-, CPS12D-, CPS16D-, CPS41D-, CPS42D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D- Declaration number: EC_00385_02.16
EN 22/07/2017Language:
English
Version:
22/07/2017
File size:
556.7 KB
File name:
EC_00385_02.16.pdf
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EU Declaration
Product family: CeraGel, CeraLiquid, Ceramax, ConduMax H, ConduMax W, InduMax H, InduMax P, Liquiline, Memosens, Messkabel, Orbi Pac, OrbiPore, OrbiSint, OxyMax H, OxyMax W, TopHit
Product root: CLS15D-, CLS16D-, CLS21D-, CLS50D-, CLS54D-, CLS82D-, CML18-, COS21D-, COS22D-, COS51D-, COS81D-, CPF82D-, CPL51E- , CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS31D-, CPS341D-, CPS41D-, CPS42D-, CPS441D-, CPS471D-, CPS47D-, CPS491D-, CPS71D-, CPS72D-, CPS77D-, CPS91D-, CPS92D-, CPS96D-, CPS97D-, CYK10-, CYK20- Declaration number: EC_00828_02.20
EN 14/02/2022Language:
English
Version:
14/02/2022
File size:
281.9 KB
File name:
EC_00828_03.22_D-Sensoren CML18 EMV_RoHS.pdf
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EU Declaration
Product family: CeraGel, CeraLiquid, Ceramax, Memocheck, Memosens, MESSKABEL, ORBIPORE, OrbiSint, TopHit
Product root: CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS31D-, CPS341D-, CPS41D-, CPS42D-, CPS441D-, CPS471D-, CPS491D-, CPS7 1D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, CYK10-, CYK20-, CYP01D-, CYP02D-, CYP03D- Declaration number: E C_00105_02.15
EN 06/01/2023Language:
English
Version:
06/01/2023
File size:
280.5 KB
File name:
EC_00105_03.23_CPSxxD_nonEx.pdf
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EU Declaration
Product family: CeraGel, CeraLiquid, Memocheck, Memosens, Messkabel, ORBIPORE, ORBISINT, TopHit
Product root: CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS41D-, CPS42D-, CPS441D-, CPS471D-, CPS491D-, CPS71D-, CPS72D-, CPS76 D-, CPS91D-, CPS92D-, CPS96D-, CYK10-, CYK20-, CYP01D-, CYP02D- Declaration number: EC_00356_03.16
EN 06/01/2023Language:
English
Version:
06/01/2023
File size:
286.2 KB
File name:
EC_00356_05.23__CPSxxD_Ex.pdf
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EU Declaration
Product family: CeraGel, CeraLiquid, Memocheck, Memosens, Messkabel, ORBIPORE, ORBISINT, TopHit
Product root: CPS11D-, CPS12D-, CPS16D-, CPS41D-, CPS42D-, CPS441D-, CPS471D-, CPS491D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, C PS92D-, CPS96D-, CYK10-, CYK20-, CYP01D-, CYP02D- Declaration number: EC_00387_01.16
EN 20/04/2016Language:
English
Version:
20/04/2016
File size:
564.8 KB
File name:
EC_00387_01.16.pdf
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UK Conformity Assessed
Product family: CeraGel, CeraLiquid, Ceramax, Memosens, OrbiPore, OrbiSint, TopHit
Product root: CPS11D-, CPS12D-, CPS16D-, CPS41D-, CPS71D-, CPS72D-, CPS91D- Declaration number: UK_00321_01.21
Language:
English
Version:
30/08/2021
File size:
284 KB
File name:
UK_00321_01.21 CPSxxD Ex.pdf
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UK Conformity Assessed
Product family: CeraGel, CeraLiquid, Ceramax, Memocheck, Memosens, OrbiPore, OrbiSint, TopHit
Product root: CPS11D-, CPS12D-, CPS16D-, CPS341D-, CPS41D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CYP03D- Declaration number: UK_00354_01.21
Language:
English
Version:
04/08/2021
File size:
281.1 KB
File name:
UK_00354_01.21 CPSxxD_nonEx.pdf
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Miscellaneous
Product family: Absorbance, Analog, Cell growth, CeraGel, CeraLiquid, Ceramax, CeraTex, ConduMax H, ConduMax W, InduMax H, InduMax P , Isemax, Memosens, OrbiPac, OrbiPore, OrbiSint, OrbiTex, OxyMax H, OxyMax W, PuriSys, Sensor, Spectrometer, TopHit, Turbidity and t otal suspended solids, Turbimax, UV, Viomax
Product root: CAS40D-, CAS51D-, CCS120-, CCS120D-, CCS50-, CCS50D-, CCS51-, CCS51D-, CCS55D-, CCS58D-, CFS51-, CKF50-, CKI50-, CLS12 -, CLS13-, CLS15-, CLS15D-, CLS16-, CLS16D-, CLS19-, CLS21D-, CLS30-, CLS50-, CLS50D-, CLS54-, CLS54D-, CLS82D-, COS22-, COS22D-, CO S41-, COS51D-, COS61-, COS61D-, COS81D-, CUS50D-, CUS51D-, CUS52D-, CVF52-, CVI52-, OUSAF11-, OUSAF12-, OUSAF21-, OUSAF22-, OUSAF44- , OUSAF46-, OUSBT66-, OUSTF10- Region: Eurasian Economic Union Approval agency: EAC Approval number: EAEC N RU D-DE.PA05.B.03690_22
Language:
Russian
Version:
26/07/2022
File size:
338.6 KB
File name:
EAEC N RU D-DE.PA05.B.03690_22.pdf
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Miscellaneous
Product family: CeraGel, CeraLiquid, Ceramax, CeraTex, Memosens, OrbiPore, OrbiSint, OrbiTex
Product root: CLS15E-, CLS16E-, CLS21E-, CLS82E-, COS22E-, COS51E-, COS81E-, CPF81E-, CPF82E-, CPS11-, CPS11D-, CPS11E-, CPS12-, CPS 12D-, CPS12E-, CPS16D-, CPS16E-, CPS171D-, CPS21-, CPS31-, CPS31D-, CPS31E-, CPS341D-, CPS41-, CPS41D-, CPS41E-, CPS42-, CPS42D-, CP S42E-, CPS47D-, CPS47E-, CPS61E-, CPS62E-, CPS71-, CPS71D-, CPS71E-, CPS72-, CPS72D-, CPS72E-, CPS76D-, CPS76E-, CPS77D-, CPS77E-, C PS91-, CPS91D-, CPS91E-, CPS92-, CPS92D-, CPS92E-, CPS96D-, CPS96E-, CPS97D-, CPS97E- Region: Eurasian Economic Union Approval agency: NANIO Approval number: EAEC N RU D-DE.PA05.B.03690_22
Language:
Russian
Version:
26/07/2022
File size:
338.6 KB
File name:
EAEC N RU D-DE.PA05.B.03690_22.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, Ceramax, ConduMax H, ConduMax W, Memocheck, Memosens, Messkabel, OrbiPore, OrbiSint, OxyMax H, OxyMax W, TopHit
Product root: CLS15D-, CLS16D-, CLS21D-, CLS82D-, COS21D-, COS22D-, COS51D-, COS81D-, CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS341D-, CPS41D-, CPS42D-, CPS441D-, CPS491D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, CYK10-, CYK20-, CYP01D-, CYP02D- Region: India Approval agency: PESO Protection: Ex i Zone 0
Language:
English
Version:
06/05/2022
File size:
141.2 KB
File name:
MEMOsens serie-D_Inductive sensor cable connection_Exia_PESO.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, Chloromax, ConduMax H, ConduMax W, INDUMAX P, LIQUILINE, Memocheck, Memosens, Messkabel, OrbiPac, OrbiPore, ORBISINT, OXYMAX H, OxyMax W, TopHit
Product root: CCS142D-, CLS15D-, CLS16D-, CLS21D-, CLS50D-, CM444R-, CM448R-, COS21D-, COS22D-, COS51D-, CPF81D-, CPF82D-, CPS11D-, CPS12D-, CPS16D-, CPS41D-, CPS42D-, CPS441D-, CPS471D-, CPS491D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, CYK10-, CYK20-, CYP01D-,CYP02D- Region: Canada, USA Approval agency: INTERTEK (ETL) Category: I/2/A,B,C,D/T6, I/2/A,B,C,D/T4A Protection: NI
Language:
English
Version:
23/12/2015
File size:
641.2 KB
File name:
ATM DAL with Control Drawing 403936-E.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, Ceramax, ConduMax H, ConduMax W, MEMOCHECK, MEMOSENS, Messkabel, OrbiPore, OrbiSint, OxyMax H, OxyMax W, TOPHIT
Product root: CLS15D-, CLS16D-, CLS21D-, CLS82D-,COS22D-, COS51D-, COS81D-, CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS341D-, CP S41D-, CPS42D-, CPS441D-, CPS471D-, CPS491D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, CYK10-, CYK20-, CYP01D-, CYP02D- Region: International (IECEx) Approval agency: DEKRA EXAM
Language:
English
Version:
25/07/2017
File size:
1 MB
File name:
IECEx BVS 11.0052X_N6.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, Ceramax, ConduMax H, ConduMax W, MEMOCHECK, MEMOSENS, Messkabel, OrbiPore, OrbiSint, OxyMax H, OxyMax W
Product root: CLS15D-, CLS16D-, CLS21D-, CLS82D-, COS21D-, COS22D-, COS51D-, COS81D-, CPS11D-, CPS12D-, CPS171D-, CPS341D-, CP S41D-, CPS42D-, CPS441D-, CPS471D-, CPS491D-, CPS71D-, CPS72D-, CPS91D-, CPS92D-, CYK10-, CYK20-, CYP01D-, CYP02D- Region: Europe (ATEX) Approval agency: DEKRA EXAM
Language:
English
Version:
04/10/2018
File size:
5.1 MB
File name:
BVS04ATEX-E121X_N15_EN.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, Ceramax, ConduMax H, ConduMax W, MEMOCHECK, MEMOSENS, Messkabel, OrbiPore, OrbiSint, OxyMax H, OxyMax W, TOPHIT
Product root: CLS15D-, CLS16D-, CLS21D-, CLS82D-,COS22D-, COS51D-, COS81D-, CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS31D-, CPS 341D-, CPS41D-, CPS42D-, CPS441D-, CPS471D-, CPS491D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, CYK10-, CYK20-, CYP01D-, CYP02D- Region: International (IECEx) Approval agency: DEKRA EXAM
Language:
English
Version:
01/07/2011
File size:
1.2 MB
File name:
Memosens_IECEx BVS 11.0052X_CoC_N9.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, Ceramax, ConduMax H, ConduMax W, Memocheck, Memosens, Messkabel, OrbiPore, OrbiSint, OxyMax H, OxyMax W, TopHit
Product root: CLS15D-, CLS16D-, CLS21D-, CLS82D-, COS22D-, COS51D-, COS81D-, CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS341D-, CPS41D-, CPS42D-, CPS441D-, CPS471D-, CPS491D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, CYK10-, CYK20-, CYP01D-, CYP02D- Region: Brazil Approval agency: INMETRO Protection: Ex i Zone 0
Language:
Portuguese
Version:
02/06/2021
File size:
1.2 MB
File name:
TUV 14.1336 X_S2_Memosens.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, ConduMax H, ConduMax W, InduMax P, MEMOSENS, MESSKABEL, OEM, OrbiPac, OrbiPore, OrbiSint, OxyMax H, OXYMAX W, TOPHIT
Product root: CLS15D-, CLS16D-, CLS21D-, CLS50D-, CLS82D-, COS21D-, COS22D-, COS51D-, COS81D-, CPF81D-, CPF82D-, CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS41D-, CPS42D-, CPS441D-, CPS471D-, CPS491D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, CYK10-, CYK20-, OCLS82D-, OCOS81D-, OLS21D-, OPS11D-, OPS12D-, OPS171D-, OPS91D-, OYK10- Region: Canada, USA Approval agency: CSA
Language:
English
Version:
21/01/2021
File size:
552.5 KB
File name:
S1_CSA_Ex_CofC_80063052_EN.PDF
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Explosion Protection
Product family: CeraGel, CeraLiquid, Memosens, Messkabel, OrbiPore, OrbiSint
Product root: CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS31D-, CPS41D-, CPS42D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, CYK10-, CYK20- Region: China Approval agency: NEPSI
Language:
Chinese
Version:
09/08/2019
File size:
2.5 MB
File name:
CPSxxD Ex ic GYJ19.1158X valid until 5-May-24.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, Memosens, OrbiPac, OrbiPore, OrbiSint, TopHit
Product root: CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS41D-, CPS42D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D- Region: China Approval agency: NEPSI
Language:
English
Version:
17/06/2016
File size:
579.5 KB
File name:
GYJ14.1156X_ZH_EN_S1_att.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, ConduMax H, ConduMax W, Memocheck, MEMOSENS, MESSKABEL, OrbiPore, OrbiSint,OxyMax H, OxyMax W, TopHit
Product root: CLS15D-, CLS16D-, CLS21D-, COS22D-, COS51D-, CPS11D-, CPS12D-, CPS16D-, CPS41D-, CPS42D-, CPS441D-, CPS471D-, CP S491D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, CYK10-, CYK20-, CYP01D-, CYP02D- Region: International (IECEx) Approval agency: DEKRA EXAM
Language:
English
Version:
16/07/2014
File size:
2.7 MB
File name:
IECEx BVS 11.0052X_N3.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, Memosens, Messkabel, OrbiPore, OrbiSint
Product root: CPS11D-, CPS12D-, CPS16D-, CPS171D-, CPS31D-, CPS41D-, CPS42D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D-, CYK10-, CYK20- Region: China Approval agency: NEPSI
Language:
Chinese
Version:
09/08/2019
File size:
2.6 MB
File name:
CPSxxD Ex ia GYJ19.1156X valild untl 05-May-24.pdf
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Explosion Protection
Product family: CeraGel, CeraLiquid, Memosens, OrbiPore, OrbiSint, TopHit
Product root: CPS11D-, CPS12D-, CPS16D-, CPS41D-, CPS42D-, CPS71D-, CPS72D-, CPS76D-, CPS91D-, CPS92D-, CPS96D- Region: China Approval agency: NEPSI
EN 16/04/2015Language:
English
Version:
16/04/2015
File size:
1012.2 KB
File name:
GYJ14.1156X_ZH_EN.pdf
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