Technical Data
CompareConductivity
| Measuring Principle | Conductive |
| Application | Calibration of conductivity measuring loops in ultra-pure water applications in the pharmaindustry; calibration of quality-relevant process measurements in the ultra-pure water range up to 20µS/cm |
| Characteristic | factory calibrated measuring case with certificate for comparison measurement in ultra-pure water up to 20µS/cm |
| Measuring range | 0,04µS/cm - 20µS/cm |
| Measuring principle | conductiv conductivity measurement |
| Design | compact case includes factory calibrated conductivity loop and flow-through assembly |
| Material | case : injection molded high performance resin Conductivity sensor CLS15D: SS 316 L, PES-GF20 flow-through assembly: PVDF |
| Dimension | 20.9" x 17.4" x 8.5" |
| Process temperature | 0.. 100C 32 .. 210F |
| Process pressure | 87 psi |
| Ingress protection | IP67 at closed case without power cord |
| Certificates, declarations and approvals | factory calibration certificate according ASTM 5391-93, traceable to SRM from NIST and DaakS |
Applications
The Conducal CLY421 is the ideal calibration kit for conductivity measuring sensors in ultrapure water applications. It provides certified comparison measurement and full traceability for instrument calibration and adjustment. Moreover, it fully meets the requirements of the pharmaceutical industry. The Conducal works via a robust, portable, battery-powered transmitter in a hard-top case, enabling flexible on-site calibration.
The Conducal CLY421 portable calibration and verification tool can be used for conductivity measurement, suitable for ultrapure water measurement up to 20 µS/cm:
Life sciences
Food industry
Semiconductor industry
Its traceability complies with national standards (NIST and DAkkS), meeting the highest regulatory requirements
Benefits
Traceable factory calibration in accordance with NIST and DAkkS standards
Factory calibration of the Conducal system in accordance with ASTM D-5391
Flow-through holder with adjustment and monitoring functions in accordance with ASTM D-5391
Precise calibration by directly comparing the process sample with a reference system
Fast installation of reference measurement with the practical flow-through holder
Flexible on-site calibration via the portable battery-powered Liquiline transmitter.
Spare Parts & Accessories 9
9 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| 71148156 | Kit CLY421: flow-through cell | Details |
| 71148157 | Kit CLY421: Threaded Adapter / Clamp / Barb | Details |
| 71148158 | Kit CLY421: adapter G1"/clamp | Details |
| 71148159 | Kit CLY421: 3x blind caps + 10x O-rings | Details |
| 71148160 | Kit CLY421: 3x clamp gasket EPDM DN20 | Details |
| 71148161 | Kit CLY421: 4x Bulgin protective cover | Details |
| 71195437 | Kit CLY421: Lithium battery charger | Details |
| 71042405 | 316L flow-through bracketpolished, Connector medium: vertical/horizontal 6mm pipe --> Successor CYA21 | Details |
| CYA21- | Compact flow-through mounting assembly CYA21Stainless steel flow-through assembly for mounting on analytical panels. Construction of analytical panels for applications within powerplants and the (petro-) chemical industry among others. Fits for applications up to 100oC at 16 bar. Robust stainless steel assembly; fit for applications at higher pressure and temperature rates; perfect for bypass installations; inclusive mounting kit. | Enquire |
Configurator / Comparison
Measurement principle video
Click to playSource: Endress+Hauserpublic information from the website
Manuals & Documents 5
All documents for this modelCase Studies
Municipal Wastewater Treatment · conductivity — Application Case
Customer Profile
The typical setting in Municipal Wastewater Treatment is the inlet, biological and outlet stages of a municipal plant. The measuring point is conductivity; the focus is measuring conductivity to judge water purity or chemical concentration.
Key Difficulties
Conditions are high solids and corrosive fractions, with large diurnal flow swings and, on top of that, effluent parameters drift and probes foul with sludge and biofilm, which a standard configuration cannot handle for long. The design therefore starts with choosing two- or four-electrode cells by range and corrosivity.
Implementation
The scope ran through the analyser range: selecting as part of a complete water-analysis system. Technically it hinges on choosing two- or four-electrode cells by range and corrosivity, and on these requirements: stable compliance with Grade 1A discharge limits and online data reporting.
Customer Benefit
In practice this means stable concentration control and less reagent and discharge waste, which cut the workload on the site maintenance team.
Food & Beverage · conductivity — Application Case
Project Background
The project covers dosing, pasteurising, filling and CIP stages. The work centres on conductivity and the core task is measuring conductivity to judge water purity or chemical concentration.
Operating Challenges
The medium and duty are characterised by syrups, dairy and beverages that scale easily, under strict hygienic requirements, and frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. So conductivity cannot be specified generically — it calls for choosing two- or four-electrode cells by range and corrosivity.
Solution
The Ainstru engineering team worked through the analyser range: selecting as part of a complete water-analysis system. The configuration involves choosing two- or four-electrode cells by range and corrosivity, with these requirements in view: food-safety and hygienic design per 3-A / EHEDG.
Results
Since start-up the system has run steadily; the practical result is stable concentration control and less reagent and discharge waste.
Chemical & Pharmaceutical · conductivity — Application Case
Project Overview
The site is reactors, metering vessels and finished-product tanks. The customer wanted conductivity properly configured on the existing plant, with the aim of measuring conductivity to judge water purity or chemical concentration.
Technical Challenges
What actually causes trouble is highly corrosive media with solvents and crystallisation, partly in explosive atmospheres, and corrosion plus Ex protection shortens instrument life and makes downtime costly. All of this means the conductivity configuration has to involve choosing two- or four-electrode cells by range and corrosivity.
Configuration
Supply and installation were organised through the analyser range: selecting as part of a complete water-analysis system. On site this meant choosing two- or four-electrode cells by range and corrosivity, checked line by line against: Ex certification and GMP traceability of records.
Performance
After commissioning the outcome is stable concentration control and less reagent and discharge waste, and the readings are now used for process tuning.
Power & Energy · conductivity — Application Case
Site Conditions
This is a Power & Energy customer whose plant is at boiler feedwater, turbine condensate and FGD/DeNOx systems. The main task was measuring conductivity to judge water purity or chemical concentration.
The Problem
The difficulty lies in high temperature and pressure with both steam and saline water; at the same time drift under high temperature and pressure, with very costly unplanned outages. Specification therefore means choosing two- or four-electrode cells by range and corrosivity.
What We Did
We took a analyser range approach — selecting as part of a complete water-analysis system. Delivery was built around choosing two- or four-electrode cells by range and corrosivity, with point-by-point checks on: compliance with power-industry codes and unit availability targets.
Operating Outcome
In service the system performs as intended — stable concentration control and less reagent and discharge waste, with routine maintenance falling noticeably.







