Technical Data
ComparePoint Level / Liquids
| Measuring Principle | Capacitive Liquid |
| Characteristic / Application | 1-channel point level detection transmitter with 4…20mA output |
| Specialities | Can be combined with single-use self-adhesive capacitive sensor FZZ61 |
| Supply / Communication | 11 to 35V DC / 4 to 20 mA, no communication |
| Ambient temperature | 0 to +40 °C |
| Min. density of medium | no limitations |
| Max. tensile strength | - |
| Certificates / Approvals | CE |
| Components | Self-adhesive sensor: FZZ61; Mounting Bracket: 71647578; Data Cable 5m: 71647581 |
| Application limits | Observe min. medium conductivity and DC value |
Single-use capacitive foam detection Liquicap FTZ61
For foam detection in single-use bioreactors, without media contact
Benefits
Non-contact measurement: eliminates contamination risk and cleaning effort, ensuring safety and cost efficiency
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Self-adhesive single-use sensor: easy installation and removal of the sensor to simplify the process and increase convenience
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Proven capacitive technology: enables fast implementation and reliability without extensive validation
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Safe foam detection: reduces risk by controlling the use of antifoaming agents and improving process safety and product quality
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Compact design: ideal for space-constrained applications, providing flexibility for single-use bioprocess setups
Versatile foam measurement: capable of measuring various foams, ensuring adaptability for different applications
Application areas
The Liquicap FTZ61 is a compact foam detector based on capacitive measurement that reliably detects the foam level in non-conductive containers, such as plastic or glass, particularly single-use bags for cell culture. Since the self-adhesive sensor FZZ61 can be easily attached to the bag from the outside without media contact, the sensor-transmitter duo provides a non-invasive foam detection solution.
The Liquicap FTZ61 is designed for single-use bioreactors and excels at detecting foam during critical fermentation processes in the life sciences. This optimizes batch productivity and ensures product integrity while reducing the risk of contamination.
Spare Parts & Accessories 5
5 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| 71647581 | Data Cable 5m for FTZ61Data Cable 5m (16.40ft) +-6cm/0.2ft Connector M12 Sheath Black, TPU Connection transmitter Liquicap FTZ61 to customer provided control unit | Details |
| 52028179 | gasketProfile gasket for cover Stainless steel housing F15 | Details |
| 71647578 | Mounting Bracket for FTZ61Mounting Bracket for transmitter Liquicap FTZ61 | Details |
| FTZ61- | Liquicap FTZ61Point level switch, capacitive Application: foam detection Button on housing, cable without sensor Only in combination with self-adhesive capacitive sensor FZZ61 | Enquire |
| FZZ61- | Self-adhesive sensor for FTZ61Self-adhesive Sensor, capacitive Only in combination with transmitter Liquicap FTZ61. No order of singles pieces possible. Only available as a package of 5 pcs. or multiples (10, 15, 20…). | Enquire |
Configurator / Comparison
Product comparison
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Manuals & Documents 1
All documents for this model1 documents · click to expand
BA Liquicap FTZ61 English
Case Studies
Municipal Wastewater Treatment · capacitors — 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 capacitors; the focus is capacitive sensing of level, interface or point limit.
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 rod, cable or plate probes by dielectric constant and build-up tendency.
Implementation
The scope ran through the level range: level solution matched to the actual tank and silo geometry. Technically it hinges on choosing rod, cable or plate probes by dielectric constant and build-up tendency, and on these requirements: stable compliance with Grade 1A discharge limits and online data reporting.
Customer Benefit
In practice this means reliable detection despite build-up, with far fewer false alarms, which cut the workload on the site maintenance team.
Food & Beverage · capacitors — Application Case
Project Background
The project covers dosing, pasteurising, filling and CIP stages. The work centres on capacitors and the core task is capacitive sensing of level, interface or point limit.
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 capacitors cannot be specified generically — it calls for choosing rod, cable or plate probes by dielectric constant and build-up tendency.
Solution
The Ainstru engineering team worked through the level range: level solution matched to the actual tank and silo geometry. The configuration involves choosing rod, cable or plate probes by dielectric constant and build-up tendency, 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 reliable detection despite build-up, with far fewer false alarms.
Chemical & Pharmaceutical · capacitors — Application Case
Project Overview
The site is reactors, metering vessels and finished-product tanks. The customer wanted capacitors properly configured on the existing plant, with the aim of capacitive sensing of level, interface or point limit.
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 capacitors configuration has to involve choosing rod, cable or plate probes by dielectric constant and build-up tendency.
Configuration
Supply and installation were organised through the level range: level solution matched to the actual tank and silo geometry. On site this meant choosing rod, cable or plate probes by dielectric constant and build-up tendency, checked line by line against: Ex certification and GMP traceability of records.
Performance
After commissioning the outcome is reliable detection despite build-up, with far fewer false alarms, and the readings are now used for process tuning.
Power & Energy · capacitors — 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 capacitive sensing of level, interface or point limit.
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 rod, cable or plate probes by dielectric constant and build-up tendency.
What We Did
We took a level range approach — level solution matched to the actual tank and silo geometry. Delivery was built around choosing rod, cable or plate probes by dielectric constant and build-up tendency, with point-by-point checks on: compliance with power-industry codes and unit availability targets.
Operating Outcome
In service the system performs as intended — reliable detection despite build-up, with far fewer false alarms, with routine maintenance falling noticeably.
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